CN212118161U

CN212118161U - Rotary transmission device and digital mammary machine C arm

Info

Publication number: CN212118161U
Application number: CN202020086044.1U
Authority: CN
Inventors: 吴梅娟; 张维博; 李中兵
Original assignee: Shenzhen Microprofit Medical Equipment Co Ltd
Current assignee: Shenzhen Microprofit Medical Equipment Co Ltd
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-12-11
Anticipated expiration: 2030-01-15

Abstract

The utility model discloses a rotary transmission and digital mammary machine C arm, rotary transmission includes: the wall-mounted plate, locate rotatory main shaft, motor and reduction gear on this wall-mounted plate. The rotating main shaft is connected with an output shaft of the speed reducer through a chain transmission mechanism; the device also comprises a tensioning mechanism for adjusting the distance between the centers of the rotating main shaft and the output shaft of the speed reducer. The utility model discloses in through chain drive, overcome the problem point that the belt skidded among the worm gear belt drive, overcome the big high problem point of cost of multistage gear meshing noise, the utility model discloses the hidden danger of skidding is not had, the noise is little simultaneously, simple structure reduction in production cost.

Description

Rotary transmission device and digital mammary machine C arm

Technical Field

The utility model relates to the technical field of medical equipment, especially, relate to a rotary transmission device and use this rotary transmission device's digital mammary machine C arm.

Background

The mammary machine is more and more widely applied to breast cancer screening, the mammary machine is mainly divided into a stand column assembly capable of being adjusted in a lifting mode and a C-arm rotating assembly capable of being shot at a rotatable angle, and the transmission systems of the C-arm rotating assemblies are mainly divided into two types: firstly, a motor drives a worm gear and a worm and drives a movable C arm to rotate through belt transmission; and secondly, multiple gears are in meshing transmission, the motor drives the gears to rotate, and the C arm is driven to rotate through multi-stage gear transmission. The former is easy to slip due to belt transmission, and has lower safety factor, and the latter is large in noise and higher in manufacturing cost due to multi-stage gear meshing transmission.

Therefore, how to overcome the defects of unreliable transmission, high transmission noise and high cost of the existing C-arm rotation transmission device is an urgent problem to be solved in the industry.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve current C arm rotary transmission device transmission unreliable, or transmission noise is big, problem with high costs, provide a rotary transmission device and digital mammary machine C arm.

The utility model provides a pair of rotary transmission device, including the wall built-up plate, locate rotatory main shaft, motor and reduction gear on this wall built-up plate. The rotating main shaft is connected with an output shaft of the speed reducer through a chain transmission mechanism; the device also comprises a tensioning mechanism for adjusting the center distance between the rotating main shaft and the output shaft of the speed reducer.

Furthermore, the motor and the speed reducer are connected with the wall-mounted plate through supporting and fixing pieces.

Furthermore, the supporting and fixing part comprises supporting members arranged on two sides of the outer frame of the speed reducer, the speed reducer is arranged on a bent supporting edge on the lower side of the supporting member, and the supporting members are connected with the outer frame of the speed reducer through connecting screws on the side edges.

Furthermore, the through hole on the supporting member, which is correspondingly connected with the outer frame of the speed reducer, is a kidney-shaped hole.

Furthermore, the tensioning mechanism comprises a spring arranged between the bottom of the outer frame of the speed reducer and the bending supporting edge of the supporting component, and an adjusting bolt penetrating through the spring to connect the outer frame of the speed reducer with the supporting and fixing part, wherein the center distance between the rotating main shaft and the output shaft of the speed reducer can be changed by rotating the adjusting bolt.

Furthermore, the chain in the chain transmission mechanism is a double-row chain.

Further, the motor is a servo motor.

Further, the speed reducer is a worm gear speed reducer.

The utility model provides an use rotatory transmission's digital mammary machine C arm, it includes: the rotary main shaft transversely penetrates through the wall hanging plate and is connected with a C-arm assembly arranged on the front side of the stand column assembly; the C-arm assembly is driven to rotate through the rotary transmission device.

The utility model discloses in through chain drive, overcome the problem point that the belt skidded among the worm gear belt drive, overcome the big high problem point of cost of multistage gear meshing noise, the utility model discloses the hidden danger of skidding is not had, the noise is little simultaneously, simple structure reduction in production cost.

Drawings

Fig. 1 is a perspective view of a motor and a reducer according to an embodiment of the present invention;

fig. 2 is a schematic view of a slack state of the chain according to the embodiment of the present invention;

fig. 3 is a schematic view of the chain tensioning and initial state of the embodiment of the present invention;

fig. 4 is a schematic view illustrating a state of the C-arm assembly in an initial state of chain tensioning according to an embodiment of the present invention;

fig. 5 is a schematic diagram of the clockwise rotation state of the C-arm assembly of the digital mammary machine of the present invention.

Detailed Description

The invention will be further described with reference to the following drawings and specific embodiments:

as shown in fig. 1 and 2, the present invention provides an embodiment of a rotation transmission device, which includes a wall plate 2, a main rotation shaft 6 disposed on the wall plate 2, a motor 7, and a speed reducer 8. The rotating main shaft 6 is connected with an output shaft of the speed reducer 8 through a chain transmission mechanism; and the tensioning mechanism is used for adjusting the center distance between the rotating main shaft 6 and the output shaft of the speed reducer 8. In this embodiment, the chain 5 in the chain transmission mechanism is a double-row chain, the motor 7 is a servo motor, and the speed reducer 8 is a worm gear speed reducer, so as to save the installation space. To obtain a suitable rotation speed, a large chain wheel in the chain transmission mechanism is connected with the rotating main shaft 6, and a small chain wheel is connected with an output shaft of the speed reducer 8 to form a speed-reducing chain transmission. The motor and the speed reducer are connected with the wall hanging plate 2 through the supporting and fixing piece. The supporting fixture includes: the supporting members 4 are arranged on two sides of the outer frame of the speed reducer, the speed reducer 8 is arranged on a bent supporting edge at the lower side of the supporting member 4, and the supporting member 4 is connected with the outer frame of the speed reducer 8 through a connecting screw 9 at the side edge. For the convenience of connection, the through holes of the supporting member 4 corresponding to the side edges of the outer frame of the speed reducer 8 are kidney-shaped holes 10 (see fig. 4).

As shown in fig. 2 and 3, the tensioning mechanism in the rotary transmission device includes: a spring 11 provided between the bottom of the outer frame of the speed reducer 8 and the bent support edge of the support member 4, and an adjusting bolt 12 passing through the spring 11 to connect the outer frame of the speed reducer 8 and the bent support edge of the support fixture 4. By rotating the adjusting bolt 12, the center distance between the rotating main shaft 6 and the output shaft of the reducer 8 can be changed, and the tightness of the chain 5 can be adjusted. After the adjustment is finished, the connecting screws 9 on the two sides of the supporting member 4 are screwed down, and the supporting member 4 and the outer frame of the speed reducer 8 are fixed. Since the support members 4 at opposite sides of the outer frame of the decelerator 8 are displaced up and down when the center distance is adjusted, the side surfaces of the support members 4 are formed into kidney-shaped holes 10 (see fig. 4) corresponding to the through holes connected to the outer frame of the decelerator 8, so that the support members 4 and the outer frame of the decelerator 8 are fixedly connected by the connection screws 9.

As shown in fig. 4 and 5, the digital mammary machine C-arm using the rotary transmission device provided by the invention comprises: the stand subassembly 1, locate this stand subassembly 1 rear side hang wall board 2. The rotating main shaft 6 transversely penetrates through the wall hanging plate 2 and is connected with the C-arm assembly 3 arranged on the front side of the upright post assembly 1. The C-arm assembly 2 is driven to rotate through the rotary transmission device.

When the rotary transmission rotates, the large chain wheel can drive the C-arm assembly 3 to rotate, as shown in figure 4, and the position shown in the figure is 0 degrees of the initial position of the C-arm assembly when the servo motor 7 is not started. When the servo motor 7 is started, the small chain wheel is driven to rotate clockwise, and the large chain is driven to rotate clockwise through the transmission of the double-row chain 5. As shown in fig. 5, the clockwise rotation of the large chain drives the rotating main shaft 6 to rotate clockwise, so as to drive the C-arm assembly 3 at the other end of the rotating main shaft to rotate clockwise.

Various other modifications and changes may be made by those skilled in the art based on the above teachings and concepts, and all such modifications and changes are intended to fall within the scope of the appended claims.

Claims

1. A rotary transmission device comprises a wall hanging plate, a rotary main shaft arranged on the wall hanging plate, a motor and a speed reducer, and is characterized in that the rotary main shaft is connected with an output shaft of the speed reducer through a chain transmission mechanism; the device also comprises a tensioning mechanism for adjusting the center distance between the rotating main shaft and the output shaft of the speed reducer.

2. The rotary drive of claim 1, wherein the motor and speed reducer are coupled to the wall plate by support fixtures.

3. The rotation transmission device according to claim 2, wherein the support fixture includes support members provided at both sides of the outer frame of the decelerator, the decelerator is disposed at the lower side of the support members bent support edges, and the support members are fixedly connected to the outer frame of the decelerator by means of connection screws at the side edges.

4. The rotary drive of claim 3, wherein the through-holes of the support members that are correspondingly connected to the outer frame of the speed reducer are kidney-shaped holes.

5. The rotary actuator according to claim 3, wherein the tension mechanism includes a spring provided between a bottom of the reducer housing and the bent support edge of the support member, and an adjustment bolt passing through the spring to connect the reducer housing to the support fixture, and rotating the adjustment bolt changes a center distance between the rotary spindle and the output shaft of the reducer.

6. The rotary drive of claim 1, wherein the chain in the chain drive is a double row chain.

7. The rotary drive of claim 1, wherein the motor is a servo motor.

8. The rotary drive of claim 1, wherein the reducer is a worm gear reducer.

9. A digital mammary machine C-arm using the rotary transmission device according to any one of claims 1 to 8, characterized by comprising a stand column assembly, the hanging plate arranged at the rear side of the stand column assembly, and a rotary main shaft transversely passing through the hanging plate and connected with a C-arm assembly arranged at the front side of the stand column assembly; the C-arm assembly is driven to rotate through the rotary transmission device.