Rack braking device

Abstract

The utility model relates to a rack braking device, which comprises a roller driving assembly, the roller driving assembly comprises a motor, a speed reducer, a bearing seat, a bearing, a spline shaft, a driving gear, a spring, a clutch and a gland, the motor is connected with the speed reducer, the bearing seat is connected with the speed reducer, the spline shaft is arranged in the bearing seat and connected with the speed reducer, and the driving gear is arranged in the spline shaft. The bearing is arranged between the bearing seat and the spline shaft, the driving gear is arranged on the spline shaft and located on one side of the bearing seat, the clutch is arranged on the spline shaft and located on one side of the driving gear, the spring is arranged on the spline shaft and located between the driving gear and the clutch, and the gland is arranged at one end of the spline shaft and located on the outer side of the clutch. Quick release and quick combination between the motor and the transmission gear are achieved, so that the problem of manually rotating the roller in the maintenance process is solved, manpower is saved, and efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the medical field, in particular to a frame braking device. Background Art

[0002] Gamma Knife is a large medical device that integrates stereotactic technology and radiosurgery technology, mainly used to treat cranial and brain diseases and body tumors. During the patient treatment process, if there is a power outage or failure, the drum must stop immediately to maintain the current posture to protect the patient from injury. Therefore, in the transmission design of the drum rotation, the motor is generally selected with a brake to prevent the drum from stopping in time under unexpected conditions. However, in the fault state, it is often necessary to manually rotate the drum for maintenance. If the motor is removed during maintenance and then the drum is rotated, it is very laborious and time-consuming.

[0003] Therefore, in order to facilitate maintenance, it is necessary to provide a frame brake device to solve the problem of manually rotating the drum during the maintenance process, save manpower and improve efficiency. Utility Model Content

[0004] In order to solve the above technical problems existing in the background technology, the utility model provides a frame brake device to achieve quick release and quick connection between the motor and the transmission gear, so as to solve the problem of manually rotating the drum during the maintenance process, save manpower and improve efficiency.

[0005] The technical solution of the utility model is: the utility model is a frame braking device, which is special in that: the frame braking device includes a roller driving assembly, the roller driving assembly includes a motor, a reducer, a bearing seat, a bearing, a spline shaft, a driving gear, a spring, a clutch and a pressure cover, the motor is connected to the reducer, the bearing seat is connected to the reducer, the spline shaft is arranged in the bearing seat and is connected to the reducer, the bearing is arranged between the bearing seat and the spline shaft, the driving gear is arranged on the spline shaft and is located on one side of the bearing seat, the clutch is arranged on the spline shaft and is located on one side of the driving gear, the spring is arranged on the spline shaft and is placed between the driving gear and the clutch, and the pressure cover is arranged at one end of the spline shaft and is located on the outside of the clutch.

[0006] Furthermore, a spline shaft keyway is provided at the end of the spline shaft, a circular hole is opened at the center of the clutch, and a first keyway that can cooperate with each other is provided on the inner wall of the circular hole corresponding to the spline shaft keyway.

[0007] Furthermore, a hole is opened in the center of the driving gear which can be nested on the spline shaft, a driving gear keyway is arranged on the end face of one end of the driving gear, and a second keyway which can cooperate with each other is arranged on the end face where the clutch contacts the driving gear and corresponds to the driving gear keyway.

[0008] Furthermore, the roller drive assembly also includes a square screw for pressing the gland, and the square screw passes through the gland and is connected to the spline shaft.

[0009] Furthermore, the spline shaft has a plurality of keyways which are evenly distributed around the end of the spline shaft, and the first keyways have a plurality of corresponding keyways which are evenly distributed around the inner wall of the circular hole.

[0010] Furthermore, there are a plurality of driving gear keyways, which are evenly distributed on the end face of the driving gear, and there are a plurality of corresponding second keyways, which are evenly distributed on the end face of the clutch.

[0011] Furthermore, the frame braking device also includes a transition wheel assembly, and the driving gear is meshed with the transition wheel assembly.

[0012] The utility model provides a convenient frame brake device, which is provided with a spline shaft, a driving gear, a spring and a clutch. The spring controls the engagement and separation of the keyway between the driving gear on the spline shaft and the clutch, thereby realizing the rapid release and rapid connection between the motor and the transmission gear, so as to solve the problem of manually rotating the drum during the maintenance process, save manpower and improve efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the spline shaft structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the driving gear structure of the utility model;

[0016] Figure 4 It is a schematic diagram of the clutch structure of the utility model;

[0017] Figure 5 It is an application schematic diagram of the utility model.

[0018] The following are the descriptions of the reference numerals:

[0019] 1. Frame; 2. Roller; 3. Transition wheel assembly; 4. Roller drive assembly; 5. Spline shaft keyway; 6. Drive gear keyway; 7. Channel; 8. Second keyway; 9. First keyway; 10. Round hole.

[0020] 4.1. Motor; 4.2. Speed ​​reducer; 4.3. Bearing seat; 4.4. Bearing; 4.5. Spline shaft; 4.6. Driving gear; 4.7. Spring; 4.8. Clutch; 4.9. Pressure cover; 4.10. Square screw. DETAILED DESCRIPTION

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0022] See also Figure 1The structure of the specific embodiment of the utility model includes a drum drive assembly 4, which includes a motor 4.1, a reducer 4.2, a bearing seat 4.3, a bearing 4.4, a spline shaft 4.5, a driving gear 4.6, a spring 4.7, a clutch 4.8, a gland 4.9 and a square screw 4.10. The motor 4.1 is connected to the reducer 4.2, the bearing seat 4.3 is connected to the reducer 4.2, the spline shaft 4.5 is arranged in the bearing seat 4.3 and is connected to the reducer 4.2, the bearing 4.4 It is arranged between the bearing seat 4.3 and the spline shaft 4.5, the driving gear 4.6 is arranged on the spline shaft 4.5 and is located on the left side of the bearing seat 4.3, the clutch 4.8 is arranged on the spline shaft 4.5 and is located on the left side of the driving gear 4.6, the spring 4.7 is arranged on the spline shaft 4.5 and is placed between the driving gear 4.6 and the clutch 4.8, the pressure cover 4.9 is arranged at one end of the spline shaft 4.5, and the square screw 4.10 is arranged on the pressure cover 4.9 and passes through the pressure cover 4.9 to be connected with the spline shaft 4.5.

[0023] See also Figure 2 The spline shaft 4.5 of the utility model is evenly provided with a plurality of spline shaft keyways 5 that can mesh with the clutch 4.8 around the end thereof.

[0024] See also Figure 3 The end surface of the driving gear 4.6 of the utility model is evenly distributed with a plurality of driving gear keyways 6 that can mesh with the end surface of the clutch 4.8, and the center of the driving gear 4.6 is provided with a channel 7 that can be nested on the spline shaft 4.5.

[0025] See also Figure 4 A circular hole 10 is opened in the center of the clutch 4.8 of the utility model, and a plurality of first key grooves 9 are evenly arranged around the inner wall of the circular hole 10 to mesh with the spline shaft key groove 5 on the spline shaft 4.5, and a plurality of second key grooves 8 are evenly arranged around the end face of the clutch 4.8 to mesh with the drive gear key groove 6 on the end face of the drive gear 4.6.

[0026] See also Figure 5 In the application embodiment of the utility model, a transition wheel assembly 3 is also included. The roller 2 is arranged at the center of the frame 1. The transition wheel assembly 3 and the roller drive assembly 4 are arranged on the frame 1. The transition wheel assembly 3 is respectively engaged with the gear on the outer ring of the roller 2 and the drive gear 4.6 on the roller drive assembly 4.

[0027] When the utility model is used: in the normal motion state, the spline shaft keyway 5 on the spline shaft 4.5 is meshed with the first keyway 9 in the circular hole 10 of the clutch 4.8, the second keyway 8 on the end face of the clutch 4.8 is meshed with the driving gear keyway 6 on the end face of the driving gear 4.6, and is pressed by the gland 4.9 and the square screw 4.10. At this time, the spring 4.7 is in a compressed state, the spline shaft 4.5 rotates to drive the clutch 4.8, and the clutch 4.8 rotates to drive the driving gear 4.6, thereby driving the roller 2 to rotate. Since the motor has a brake (the motor has a brake, which means that the motor will be locked in the current power-off or motor failure state, so that the transmission mechanism will no longer move), the roller 2 can maintain the current state in the power-off or failure state, thereby protecting the patient's safety. When the drum 2 needs to be manually rotated for maintenance under the fault state, a special ratchet wrench is used to loosen the square screw 4.10 of the fixed pressure cover 4.9, and the spring 4.7 in the compressed state lifts the clutch 4.8, so that the second keyway 8 on the end face of the clutch 4.8 and the drive gear keyway 6 on the end face of the drive gear 4.6 are engaged and disengaged. At this time, the drive gear 4.6 can rotate freely, and then a special ratchet wrench is used to rotate the transmission shaft on the transition gear assembly to drive the drum 2 to rotate for maintenance. After the maintenance is completed, a special ratchet wrench is used to tighten the square screw 4.10 of the fixed pressure cover 4.9, and the spring 4.7 is compressed to engage the second keyway 8 on the end face of the clutch 4.8 and the drive gear keyway 6 on the end face of the drive gear 4.6.

[0028] The content of the utility model and the technical content not specifically described in the above embodiments are the same as the prior art. The above are only specific implementation methods disclosed by the utility model, but the protection scope disclosed by the utility model is not limited thereto. The protection scope disclosed by the utility model shall be subject to the protection scope of the claims.

Claims

1. A frame brake device, characterized in that: The frame braking device includes a roller drive assembly, which includes a motor, a reducer, a bearing seat, a bearing, a spline shaft, a driving gear, a spring, a clutch and a pressure cover. The motor is connected to the reducer, the bearing seat is connected to the reducer, the spline shaft is arranged in the bearing seat and is connected to the reducer, the bearing is arranged between the bearing seat and the spline shaft, the driving gear is arranged on the spline shaft and is located on one side of the bearing seat, the clutch is arranged on the spline shaft and is located on one side of the driving gear, the spring is arranged on the spline shaft and is placed between the driving gear and the clutch, and the pressure cover is arranged at one end of the spline shaft and is located on the outside of the clutch.

2. The frame brake device according to claim 1, characterized in that: The end of the spline shaft is provided with a spline shaft keyway, the center of the clutch is provided with a circular hole, and the inner wall of the circular hole is provided with a first keyway corresponding to the spline shaft keyway and capable of matching with each other.

3. The frame brake device according to claim 2, characterized in that: The center of the driving gear is provided with a hole which can be nested on the spline shaft, a driving gear keyway is provided on one end face of the driving gear, and a second keyway which can cooperate with each other is provided on the end face where the clutch contacts the driving gear and corresponds to the driving gear keyway.

4. The frame brake device according to claim 3, characterized in that: The roller driving assembly also includes a square screw for pressing the gland, and the square screw passes through the gland and is connected to the spline shaft.

5. The frame brake device according to claim 4, characterized in that: The spline shaft has a plurality of keyways which are evenly distributed around the end of the spline shaft, and the first keyways have a plurality of corresponding keyways which are evenly distributed around the inner wall of the circular hole.

6. The frame brake device according to claim 5, characterized in that: There are a plurality of driving gear keyways, which are evenly distributed on the end face of the driving gear, and there are a plurality of corresponding second keyways, which are evenly distributed on the end face of the clutch.

7. The frame brake device according to any one of claims 1 to 6, characterized in that: The frame braking device also includes a transition wheel assembly, and the driving gear is meshed with the transition wheel assembly.

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