阅读说明：本技术 一种医用移动式c臂机的阻尼传动装置 (Damping transmission device of medical movable C-arm machine ) 是由 刘金虎 曹香军 于 2020-05-08 设计创作，主要内容包括：一种医用移动式C臂机的阻尼传动装置,属于医疗器械技术领域,其结构包含传动组件(1)、压带轮组件(2)、C臂(3)、同步带甲(4)、箱体(5),其特征是：同步带甲(4)连接同步带轮C(12)和C臂(3),电机(6)带动同步带轮A(9)转动,同步带轮A(9)带动同步带轮B(10)转动,同步带轮B(10)带动同步带轮C(12)转动,同步带轮C(12)带动C臂(3)滑行；摩擦片(16)与同步带轮C(12)相接触产生的摩擦力使传动轴(13)带动同步带轮C(12)转动,同步带轮C(12)带动同步带甲(4)转动,从而带动C臂(3)滑行；当C臂滑行过程碰到病人、医护人员时,摩擦片(16)与同步带轮C(12)产生的摩擦力失效,使传动轴(13)继续转动而同步带轮C(12)打滑停止转动,从而保护病人、医护人员安全。其优点是：结构简单、成本低,稳定性好。(The utility model provides a damping transmission of medical portable C arm machine, belongs to medical instrument technical field, and its structure contains drive assembly (1), pinch roller subassembly (2), C arm (3), hold-in range first (4), box (5), characterized by: the synchronous belt A (4) is connected with a synchronous belt wheel C (12) and a C arm (3), a motor (6) drives a synchronous belt wheel A (9) to rotate, the synchronous belt wheel A (9) drives a synchronous belt wheel B (10) to rotate, the synchronous belt wheel B (10) drives a synchronous belt wheel C (12) to rotate, and the synchronous belt wheel C (12) drives the C arm (3) to slide; friction force generated by the contact of the friction plate (16) and the synchronous pulley C (12) enables the transmission shaft (13) to drive the synchronous pulley C (12) to rotate, and the synchronous pulley C (12) drives the synchronous belt A (4) to rotate, so that the C arm (3) is driven to slide; when the C arm slides to touch a patient and medical staff, the friction force generated by the friction plate (16) and the synchronous pulley C (12) is invalid, so that the transmission shaft (13) continues to rotate, and the synchronous pulley C (12) slips to stop rotating, thereby protecting the safety of the patient and the medical staff. The advantages are that: simple structure, low cost and good stability.)

1. The utility model provides a damping transmission of medical portable C arm machine which characterized in that: the structure of the belt pressing wheel assembly comprises a transmission assembly (1), a belt pressing wheel assembly (2), a C arm (3), a synchronous belt A (4) and a box body (5), wherein the transmission assembly (1) comprises a motor (6), a speed reducer (7), a base (8), a synchronous belt wheel A (9), a synchronous belt wheel B (10), a synchronous belt B (11), a synchronous belt wheel C (12), a transmission shaft (13), a bearing A (14), a bearing B (15), a friction plate (16), a disc spring (17), a locking nut (18), an elastic check ring for holes (19), a bearing end cover (20) and a shaft head check block (21).

2. The damping transmission device of a medical mobile C-arm machine as claimed in claim 1, wherein: synchronous pulley C (12) and C arm (3) in drive assembly (1) are connected to hold-in range first (4), the both ends and C arm (3) fixed connection of hold-in range first (4).

3. The damping transmission device of a medical mobile C-arm machine as claimed in claim 1, wherein: the motor (6) drives a synchronous belt pulley A (9) to rotate through a speed reducer (7), the synchronous belt pulley A (9) drives a synchronous belt pulley B (10) to rotate through a synchronous belt B (11), the synchronous belt pulley B (10) drives a synchronous belt pulley C (12) to rotate through a transmission shaft (13), and the synchronous belt pulley C (12) drives a C arm (3) to slide through a synchronous belt A (4).

4. The damping transmission device of a medical mobile C-arm machine as claimed in claim 1, wherein: the locking nut (18) compresses tightly the disc spring (17), so that friction force is generated between the friction plate (16) and the synchronous pulley C (12), the generated friction force enables the transmission shaft (13) to drive the synchronous pulley C (12) to rotate, the synchronous pulley C (12) drives the synchronous belt A (4) to rotate around the synchronous pulley C (12), and two ends of the synchronous belt A (4) are fixedly connected with two ends of the C arm (3), so that the C arm (3) is driven to slide.

5. The damping transmission device of a medical mobile C-arm machine as claimed in any one of claims 1 to 4, wherein: when the C arm touches a patient, a medical worker or other obstacles in the sliding process, the friction force generated by the friction plate (16) and the synchronous pulley C (12) is invalid, so that the transmission shaft (13) continues to rotate, and the synchronous pulley C (12) slips and stops rotating.

Technical Field

The invention belongs to the technical field of medical instruments, and particularly relates to a damping transmission device of a medical movable C-arm machine.

Background

With the continuous development of medical X-ray technology, the requirements of clinical application on the use convenience and safety performance of medical instruments are higher and higher, medical X-ray machines are digitalized, functionally integrated and humanized, the functional integration inevitably puts forward higher requirements on the safety of the machines in the use process, the machines are firm and reliable in the movement process, and the patients or medical staff are prevented from being hurt in the movement process of the machines, so that the safety device in the movement process of the machines is very important for the medical instruments.

Disclosure of Invention

The purpose of the invention is: the damping transmission device of the medical movable C-arm machine is designed, when the C-arm slides to touch a patient, medical staff or other obstacle objects, the sliding motion can be stopped, and the personal safety of the patient and the medical staff is effectively protected.

The technical scheme of the invention is as follows: the method is characterized in that: the device comprises a transmission assembly, a pinch roller assembly, a C arm, a synchronous belt A and a box body, wherein the transmission assembly comprises a motor, a speed reducer, a base, a synchronous belt pulley A, a synchronous belt pulley B, a synchronous belt pulley C, a transmission shaft, a bearing A, a bearing B, a friction plate, a disc spring, a locking nut, a hole elastic retainer ring, a bearing end cover and a shaft head stop dog.

In any of the above schemes, preferably, the synchronous belt A bypasses the pinch roller assembly to connect the synchronous pulley C and the C arm in the transmission assembly, and two ends of the synchronous belt A are fixedly connected with the C arm.

In any of the above schemes, preferably, the motor outputs power through a speed reducer to drive a synchronous pulley A to rotate, the speed reducer is fixed on a base, the synchronous pulley A drives a synchronous pulley B to rotate through a synchronous belt B, the synchronous pulley B drives a synchronous pulley C to rotate through a transmission shaft, two ends of the transmission shaft are arranged on the base through a bearing A and a bearing B, the synchronous pulley B is sleeved on the end part of the transmission shaft and is fixed by a shaft head stop block, the other end of the transmission shaft is fixed through a bearing end cover, one end of the bearing A is provided with a hole elastic retainer ring, the synchronous pulley C is sleeved in the middle of the transmission shaft, two ends of the transmission shaft are provided with friction plates, the upper end of the transmission shaft is provided with a disk spring and a locking nut, the locking nut compresses the disk spring, so that the friction force generated by the contact of the friction plates and the synchronous pulley C drives the synchronous pulley C to rotate when the transmission shaft rotates, synchronous pulley C drives synchronous belt first and rotates around synchronous pulley C, and synchronous belt first both ends and C arm both ends fixed connection to drive C arm and slide.

In any of the above schemes, preferably, when the C-arm slides and touches a patient, a medical care worker or other obstacle, the generated resistance causes the friction force generated by the contact between the friction plate and the synchronous pulley C to fail, so that the transmission shaft continues to rotate and the synchronous pulley C slides and stops rotating, and therefore the C-arm stops sliding and rotating when touching the patient, the medical care worker or other obstacle in the C-arm sliding process, and the safety of the patient and the medical care worker is protected.

The invention has the beneficial effects that: simple structure, low cost and good stability.

Drawings

Fig. 1 is a schematic view of a mounting and dismounting structure of an embodiment of a damping transmission device of a medical mobile C-arm machine.

Fig. 2 is a schematic view of a mounting and dismounting structure of a transmission assembly of a damping transmission device of a medical mobile C-arm machine.

Fig. 3 is a schematic sectional structure view of an embodiment of a damping transmission device of a medical mobile C-arm machine.

Wherein: the device comprises a 1-transmission assembly, a 2-pinch roller assembly, a 3-C arm, a 4-synchronous belt A, a 5-box body, a 6-motor, a 7-speed reducer, a 8-base, a 9-synchronous pulley A, a 10-synchronous pulley B, a 11-synchronous belt B, a 12-synchronous pulley C, a 13-transmission shaft, a 14-bearing A, a 15-bearing B, a 16-friction plate, a 17-disc spring, an 18-locking nut, a 19-hole elastic retainer ring, a 20-bearing end cover and a 21-shaft head stop block.

Detailed Description

In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail below with reference to the examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

Referring to all the drawings, the structure of the belt pressing device comprises a transmission assembly (1), a belt pressing wheel assembly (2), a C arm (3), a synchronous belt A (4) and a box body (5), wherein the transmission assembly (1) comprises a motor (6), a speed reducer (7), a base (8), a synchronous belt wheel A (9), a synchronous belt wheel B (10), a synchronous belt B (11), a synchronous belt wheel C (12), a transmission shaft (13), a bearing A (14), a bearing B (15), a friction plate (16), a disc spring (17), a locking nut (18), an elastic check ring for holes (19), a bearing end cover (20) and a shaft head check block (21).

Further, in the embodiment, the motor (6) is installed on the speed reducer (7) through an inner hexagonal socket head cap screw M4X 12, the speed reducer (7) is installed on the base (8) through a screw, the base (8) is installed inside the box body (5) through an inner hexagonal socket head cap screw M8X 16, the synchronous pulley A (9) is sleeved on an output shaft of the speed reducer (7), the angle is fixed through a key 5X 16, the end part of the synchronous pulley is fixed through a shaft head stopper (21), the synchronous pulley B (10) is sleeved on the transmission shaft (13), the angle is fixed through a key 5X 16, the end part of the synchronous pulley A (9) is fixed through the shaft head stopper (21), and the middle parts of the synchronous pulley A (9) and the synchronous pulley B (10) are connected and driven through a synchronous belt B (11).

Furthermore, in the embodiment, a transmission shaft (13) is sleeved on a base (8) through a bearing A (14) and a bearing B (15) at two ends, the bearings at the two ends are respectively fixed by a circlip (19) and a bearing end cover (20) for holes, a synchronous pulley C (12) is rotatably sleeved in the middle of the transmission shaft (13), friction plates (16) are arranged at two ends, a disc spring (17) and a locking nut (18) are arranged at one end, the disc spring (17) generates elastic force by screwing the locking nut (18), and friction force F1 is generated between the friction plates (16) and the synchronous pulley C (12).

Further, in this embodiment, the friction force F1 can realize transmission between the transmission shaft (13) and the synchronous pulley C (12), and at the same time, when the resistance force F2 generated when the C-arm (3) encounters a patient, a medical care worker, or another obstacle during the sliding process exceeds the friction force F1, the synchronous pulley C (12) slips, and the transmission between the transmission shaft (13) and the synchronous pulley C (12) fails, so that the sliding motion is stopped when the C-arm encounters the patient, the medical care worker, or another obstacle during the sliding process, thereby protecting the safety of the patient and the medical care worker.

Its advantages are simple structure, low cost and high stability.