CN213129543U - Image splicing transmission mechanism for dental medical equipment - Google Patents
Image splicing transmission mechanism for dental medical equipment Download PDFInfo
- Publication number
- CN213129543U CN213129543U CN202021124663.1U CN202021124663U CN213129543U CN 213129543 U CN213129543 U CN 213129543U CN 202021124663 U CN202021124663 U CN 202021124663U CN 213129543 U CN213129543 U CN 213129543U
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- Prior art keywords
- motor
- fixing bracket
- bearing seat
- guide rod
- lower fixing
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 20
- 238000009413 insulation Methods 0.000 claims description 8
- 230000035939 shock Effects 0.000 claims description 8
- 230000003139 buffering effect Effects 0.000 description 4
- 238000003384 imaging method Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
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- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
An object of the utility model is to provide an image concatenation drive mechanism for dentistry medical equipment, include: the upper fixing support and the lower fixing support are connected; the guide rod is fixed between the upper fixing support and the lower fixing support; the linear sliding bearing seat is sleeved outside the guide rod; a motor mounted on the lower fixing bracket; the transmission screw rod is connected with an output shaft of the motor, extends towards the direction of the upper fixing bracket, and has a free end accommodated in the upper fixing bracket; a feed screw nut mounted on the drive screw at a location proximate to the free end thereof; the sliding block is connected between the linear sliding bearing seat and the screw nut and is used for adjusting the height position of the shot object; and under the driving of the motor, the screw rod nut, the sliding block and the linear sliding bearing seat move up and down along the guide rod together. The utility model discloses simple structure can make whole mechanism highly effectively reduce.
Description
Technical Field
The utility model relates to a dentistry medical instrument field specifically relates to an image concatenation drive mechanism for dentistry medical equipment.
Background
The traditional image splicing transmission mechanism for the dental medical equipment adopts structural parts such as a motor, a coupler, a screw rod and a guide mechanism or a guide rail sliding mechanism, but the two implementation modes have different defects as follows.
1. Adopt motor and shaft coupling structure: the height dimension of the mechanism can be very big, the whole occupied space after assembly is large, when a patient sits on the seat for shooting, the leg and the mechanism can interfere, and the coordination with the whole machine can be influenced by the higher splicing mechanism.
2. In a traditional transmission mechanism, a motor can transmit noise to a metal mechanism in the working process to amplify the noise.
3. The guide mechanism of the traditional splicing mechanism adopts a linear bearing or an engineering plastic bearing, the gap of the guide mechanism is larger and larger after the guide mechanism is used for a period of time, and the positioning part of the splicing mechanism can have a deviation phenomenon to influence the image quality.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides an image splicing transmission mechanism for dental medical equipment, which has a simple structure and can effectively reduce the overall height of the mechanism.
Therefore, the utility model provides an image concatenation drive mechanism for dental medical equipment includes: the upper fixing support and the lower fixing support are connected; the guide rod is fixed between the upper fixing support and the lower fixing support; the linear sliding bearing seat is sleeved outside the guide rod; a motor mounted on the lower fixing bracket; the transmission screw rod is connected with an output shaft of the motor, extends towards the direction of the upper fixing bracket, and has a free end accommodated in the upper fixing bracket; a feed screw nut mounted on the drive screw at a location proximate to the free end thereof; the sliding block is connected between the linear sliding bearing seat and the screw nut and is used for adjusting the height position of the shot object; and under the driving of the motor, the screw rod nut, the sliding block and the linear sliding bearing seat move up and down along the guide rod together.
According to the utility model discloses, image concatenation drive mechanism adopts motor and transmission lead screw direct contact, saves the high space of shaft coupling, makes whole mechanism highly effectively reduce, has solved the space problem of direction of height.
Preferably, a through hole is provided in a bottom wall of the lower fixing bracket, and the motor is mounted in the through hole; and a motor support is further fixed on the bottom wall of the lower fixing support and erected above the through hole, and the motor is fixed on the top wall of the motor support from the lower part.
Preferably, the motor support is fixed to the bottom wall of the lower fixing support through a vibration isolation nut.
With the help of this, shock insulation nut flexonics can be crossed with lower fixed bolster to motor support, plays buffering and shock insulation effect, therefore the function of former shaft coupling buffering can be realized by shock insulation nut, and simple structure reduces whole mechanism occupation space again greatly when guaranteeing that mechanism rotates steadily. In addition, the accumulated errors of assembly and start-stop buffering of the motor can be absorbed by the shock insulation nut; and the shock insulation nut separates motor and lower fixed bolster, and the motor can not pass the noise to lower fixed bolster, avoids resonating, the noise reduction.
Preferably, a motor bearing is arranged outside the output shaft of the motor, and the motor bearing is arranged on a bearing seat positioned above the motor.
With the help of this, through the contact connection of bearing frame between motor bearing and the motor, derive axial force and give the motor support and on the lower fixed bolster, make the axial not bear the force.
Preferably, the free end of the drive screw is bearingless received in a mounting hole formed in the upper fixing bracket.
By means of the transmission screw rod, the upper end of the transmission screw rod is a free end, is not restrained, does not need to be fixed by a bearing, and can eliminate over-positioning.
Preferably, the linear sliding bearing seat is sleeved outside the guide rod through an elastic bearing.
By means of the guide rod and the elastic bearing, the guide rod and the elastic bearing are always kept in tight fit, no obvious gap exists between the guide rod and the elastic bearing, and the guide rod and the elastic bearing are good in guide and accurate in positioning. The guiding mechanism adopts an elastic bearing which is matched more tightly, and is in zero clearance fit, so that the patient is positioned more accurately, and the quality of the shot image is better.
Drawings
Fig. 1 shows a schematic longitudinal sectional view of an image stitching drive mechanism for a dental medical device according to an embodiment of the present invention;
FIG. 2 is a rear view of the image stitching drive mechanism shown in FIG. 1;
FIG. 3 is an enlarged view of a portion of the image stitching drive mechanism shown in FIG. 1;
fig. 4 is a perspective view of the image stitching drive mechanism shown in fig. 1.
Reference numerals:
1. a transmission screw rod; 2. 3, a screw nut, a sliding block; 4. an upper fixing bracket; 5. a linear sliding bearing seat; 6. a lower fixed bracket; 7. a guide bar; 8. a motor bearing; 9. a bearing seat; 10. a motor; 11. tightening the screw; 12. a motor bracket; 13. a shock insulation nut; 14. an elastic bearing.
Detailed Description
The present invention is further described below in conjunction with the following embodiments and the accompanying drawings, it being understood that the drawings and the following embodiments are illustrative of the present invention only and are not limiting.
To the current too big scheduling problem of image concatenation drive mechanism's whole mechanism height dimension that is used for dentistry medical equipment, the utility model provides an image concatenation drive mechanism for dentistry medical equipment, include: the upper fixing support and the lower fixing support are connected; a guide rod fixed between the upper fixing bracket and the lower fixing bracket; the linear sliding bearing seat is sleeved outside the guide rod; a motor installed on the lower fixing bracket; the transmission screw rod is connected with an output shaft of the motor, extends towards the direction of the upper fixing bracket and has a free end accommodated in the upper fixing bracket; a feed screw nut mounted on the drive screw at a position proximate to the free end thereof; and the sliding block is connected between the linear sliding bearing seat and the screw nut and is used for adjusting the height position of the shot object. Under the drive of the motor, the screw rod nut, the sliding block and the linear sliding bearing seat move up and down along the guide rod together. The sliding block moves up and down along the guide rod to realize the image splicing function.
Fig. 1 to 4 show an embodiment of the image stitching transmission mechanism for a dental medical device according to the present invention. As shown in fig. 1 to 4, the image splicing drive mechanism for a dental medical apparatus according to the present embodiment includes an upper fixing bracket 4 and a lower fixing bracket 6 connected to the upper fixing bracket 4 below the upper fixing bracket. The lower fixing bracket 6 is substantially U-shaped when viewed from the side (in the direction of the paper of fig. 2), and the distal ends of both side walls thereof are fixed to the upper fixing bracket 4 by fasteners such as screws. Namely, the upper fixing support 4 and the lower fixing support 6 can be rigidly connected through screws.
The motor 10 is mounted to the bottom wall of the lower fixing bracket 6. As shown in fig. 1, the motor 10 protrudes from the bottom wall of the lower fixing bracket 6. Specifically, a through hole is provided in the bottom wall of the lower fixing bracket 6, and the motor 10 is mounted in the through hole.
In addition, a motor bracket 12 is arranged on the bottom wall of the lower fixing bracket 6. The motor bracket 12 may be connected to the bottom wall of the lower fixing bracket 6 by fasteners such as a vibration isolation nut 13 and a screw. The seismic isolation nut 13 may be a rubber nut. The motor bracket 12 is substantially in a shape of a little Chinese character 'ji' and is arranged above the through hole, and both bottom edges of the motor bracket 12 are fixed to the bottom wall of the lower fixing bracket 6 by two rubber nuts 13, respectively. The motor 10 may be fixed to a top wall of the motor bracket 12 from below by a fastening member such as a screw, and the top wall of the motor bracket 12 is also formed with an opening.
A transmission screw rod 1 is arranged above the motor 10. Specifically, the output shaft of the motor 10 is connected to the base end (lower end shown in fig. 1) of the drive screw 1. A motor bearing 8 is provided outside an output shaft of the motor 10, and the motor bearing 8 is mounted on a bearing housing 9 located above the motor 10. In addition, the motor 10 and the driving screw 1 may be fixed by a fastening member such as a set screw 11.
A feed screw nut 2 is mounted on the drive screw 1 at a position close to the free end (upper end shown in fig. 1). The feed screw nut 2 is connected with the sliding block 3. The free end of the drive screw 1 is received in a mounting hole formed in the upper fixing bracket 4 without bearing fixing.
Further, as shown in fig. 1, a guide rod 7 is further fixed between the upper fixing bracket 4 and the lower fixing bracket 6 (specifically, the bottom wall of the lower fixing bracket 6). Specifically, both ends of the guide rod 7 are fixed to the upper fixing bracket 4 and the lower fixing bracket 6 by fasteners such as screws, respectively. In the present embodiment, a guide bar 7 is provided on each side of the motor 10.
As shown in fig. 1 and 3, the linear sliding bearing block 5 is sleeved outside the guide rod 7 through an elastic bearing 14. The elastic bearing 14 includes a metal housing, and the inside thereof is made of a composite material, which may be, for example, graphite, copper powder, nylon, or the like.
A sliding block 3 is connected between the linear sliding bearing seat 5 and the screw nut 2. Specifically, the feed screw nut 2 and the slide block 3 are rigidly connected, and the two can be fixed by fasteners such as screws. The slide block 3 and the bearing block 5 are also connected by a fastener such as a screw. That is, the lead screw nut 2, the slide block 3 and the bearing seat 5 move up and down along the guide rod 7 under the driving of the motor 10. The slider 3 is thereby slidable between the upper position and the lower position. Specifically, fig. 1 shows the upper position of the sliding block 3, and the lower position of the sliding block 3 is at a position where the sliding block 3 is close to the lower inner side surface of the lower fixing bracket 6.
The sliding block 3 is used for adjusting the height position of the object to be shot, and can be generally connected with a jaw support positioning mechanism and other members, and the object to be shot is placed on the jaw support positioning mechanism so as to be positioned at different height positions along with the sliding block. Thus, in the upper and lower positions of the slider 3, the imaging device using this structure generates two images, and the imaging device receives the X-ray generated image of the bulb tube through the imaging plate sensor, and then the software of the imaging device performs the stitching process on the two images. Specifically, the structure usually has the highest position and the lowest position of the machine, the software design of the image device will limit the highest position and the lowest position of the software, and the software limit area is usually smaller than the mechanical limit area.
Further, when the image splicing transmission mechanism for the dental medical equipment in the embodiment operates, the motor 10 is electrified and rotated to drive the transmission screw rod 1 to rotate, the transmission screw rod 1 and the screw rod nut 2 are matched and rotated, the screw rod nut 2 is rigidly connected with the sliding block 3 to transmit power to the sliding block 3, the sliding block 3 moves up and down along the guide rod 7 to realize a splicing function, and the elastic bearing 14 is in direct contact with the guide rod 7 in the movement process.
According to the structure, the motor 10 is connected with the transmission screw rod 1 without a coupler, the height size of the mechanism is obviously reduced, for example, the height can be reduced by 25mm, and the space is greatly saved. The utility model discloses require to reduce the installation, the upper end of transmission lead screw 1 is the free end, does not retrain, does not need the bearing fixed, can eliminate the location. The motor bearing 8 is in contact connection with the motor 10 through the bearing seat 9, and axial force is led to the motor bracket 12 and the lower fixed bracket 6, so that the axial force is not borne; that is, the utility model discloses a drive mechanism has avoided motor 10 to bear the axial force on transmitting load to lower fixed bolster 6 through motor support 12. The lower fixing bracket 6 and the motor bracket 12 are connected through shock-proof nuts (such as rubber nuts, specifically 4 in the embodiment) 13, and the accumulated errors of assembly and start-stop buffering of the motor can be absorbed by the 4 shock-proof nuts 13; and the shock insulation nut separates motor 10 and lower fixed bolster 6, and motor 10 can not pass the noise to lower fixed bolster 6, avoids resonating, the noise reduction. The guide rod 7 and the elastic bearing 14 always keep tight fit, and no obvious gap exists between the guide rod and the elastic bearing, so that the guide is good, and the positioning is more accurate.
The present invention may be embodied in several forms without departing from the spirit of the essential characteristics thereof, and the embodiments are therefore to be considered in all respects as illustrative and not restrictive, since the scope of the invention is defined by the appended claims rather than by the description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (6)
1. An image stitching drive mechanism for a dental medical device, comprising:
the upper fixing support and the lower fixing support are connected;
the guide rod is fixed between the upper fixing support and the lower fixing support;
the linear sliding bearing seat is sleeved outside the guide rod;
a motor mounted on the lower fixing bracket;
the transmission screw rod is connected with an output shaft of the motor, extends towards the direction of the upper fixing bracket, and has a free end accommodated in the upper fixing bracket;
a feed screw nut mounted on the drive screw at a location proximate to the free end thereof;
the sliding block is connected between the linear sliding bearing seat and the screw nut and is used for adjusting the height position of the shot object;
and under the driving of the motor, the screw rod nut, the sliding block and the linear sliding bearing seat move up and down along the guide rod together.
2. The image stitching drive mechanism of claim 1,
a through hole is formed in the bottom wall of the lower fixing bracket, and the motor is installed in the through hole;
and a motor support is further fixed on the bottom wall of the lower fixing support and erected above the through hole, and the motor is fixed on the top wall of the motor support from the lower part.
3. The image stitching drive mechanism of claim 2,
the motor support is fixed on the bottom wall of the lower fixing support through a shock insulation nut.
4. The image stitching drive mechanism of claim 2,
and a motor bearing is arranged outside the output shaft of the motor and is arranged on a bearing seat positioned above the motor.
5. The image stitching drive mechanism of any one of claims 1 to 4,
the free end of the drive screw is bearingless received in a mounting hole formed in the upper fixing bracket.
6. The image stitching drive mechanism of any one of claims 1 to 4,
the linear sliding bearing seat is sleeved outside the guide rod through an elastic bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021124663.1U CN213129543U (en) | 2020-06-17 | 2020-06-17 | Image splicing transmission mechanism for dental medical equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021124663.1U CN213129543U (en) | 2020-06-17 | 2020-06-17 | Image splicing transmission mechanism for dental medical equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213129543U true CN213129543U (en) | 2021-05-07 |
Family
ID=75726481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021124663.1U Expired - Fee Related CN213129543U (en) | 2020-06-17 | 2020-06-17 | Image splicing transmission mechanism for dental medical equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213129543U (en) |
-
2020
- 2020-06-17 CN CN202021124663.1U patent/CN213129543U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210507 |