Gear type pneumatic motor with braking function

Abstract

The utility model discloses a gear type pneumatic motor with a braking function, which comprises a motor shell, a first gear is arranged in the motor shell, a second gear is meshed and connected above the first gear, a first bearing and a second bearing are respectively arranged on two sides of the first gear, and the first bearing and the second bearing are meshed and connected with the first gear. Corresponding transmission shaft holes are formed between the first gear and the first bearing and between the first gear and the second bearing, a first transmission shaft is connected to the transmission shaft holes, a brake connecting shaft is movably connected to the side, close to the second bearing, of the first transmission shaft, and a first output flange is detachably connected to the side, close to the second bearing, of the motor shell. The first output flange is provided with an air inlet connector, the first output flange is provided with a transmission shaft hole corresponding to a brake connecting shaft, and the brake connecting shaft penetrates through the transmission shaft hole to be movably connected with a pneumatic brake.

Description

TECHNICAL FIELD

[0001] The utility model relates to gear type pneumatic motor technical field, concretely is a gear type pneumatic motor with brake function. BACKGROUND

[0002] Gear type pneumatic motor is a kind of device that the energy of compressed air is converted into mechanical energy, is widely used in industrial production, mine machinery, hoisting equipment, conveying system etc.

[0003] However, the conventional gear type pneumatic motor still has some limitations in practical application, especially in the occasion needing rapid braking and accurate control, gear type pneumatic motor can usually only be slowed down by the reaction of whole machine running resistance on the motor after closing air source, equipment cannot be stopped in time under emergency, there is higher safety risk, and long-time dependence on running resistance deceleration can increase the wear of pneumatic motor and other components, reduce the service life of equipment.

[0004] Therefore, it is necessary to design a gear type pneumatic motor with brake function that can decelerate and stop in time and reduce the use of components. CONTENT OF UTILITY MODEL

[0005] The utility model aims at providing a gear type pneumatic motor with brake function to solve the problem of lack of brake function in the existing gear type pneumatic motor and long-time dependence on resistance deceleration to increase the wear of pneumatic motor components in the above background art.

[0006] In order to solve the above technical problem, the utility model provides the following technical scheme: a gear type pneumatic motor with brake function, comprising motor casing, gear one is arranged inside the motor casing, gear two is engaged and connected above the gear one, first bearing and second bearing are arranged on both sides of the gear one respectively, corresponding transmission shaft hole is arranged between the gear one and first bearing and second bearing, first transmission shaft is connected on the transmission shaft hole, brake connector shaft is movably connected on the side of second bearing of first transmission shaft, output flange one is detachably connected on the side of second bearing of motor casing, air inlet is arranged on the output flange one, corresponding transmission shaft hole of brake connector shaft is arranged on the output flange one, pneumatic brake is movably connected on the brake connector shaft through the transmission shaft hole.

[0007] According to the technical scheme, the pneumatic brake comprises a cylinder, an air inlet is arranged at the top of the cylinder, a piston is arranged in the cylinder, a sealing ring is arranged on the piston, a piston holder is detachably connected to one side of the piston, a friction disc is detachably connected to one side of the piston holder, a return spring is detachably connected to one side of the piston holder close to the piston, and an auxiliary shaft bushing disc is detachably connected to one side of the friction disc.

[0008] According to the technical scheme, the gear two is provided with a third bearing and a fourth bearing on two sides respectively, a sealing ring is arranged on the third bearing, corresponding transmission shaft holes are arranged between the gear two and the third bearing and the fourth bearing, a second transmission shaft is arranged on the transmission shaft hole, a speed reducer connecting shaft is movably connected to one side of the third bearing close to the second transmission shaft, an output flange two is arranged on one side of the motor housing close to the third bearing, a transmission shaft hole corresponding to the speed reducer connecting shaft is arranged on the output flange two, and the speed reducer connecting shaft is arranged outside the motor housing through the transmission shaft hole.

[0009] According to the technical scheme, the motor housing is detachably connected with a motor end cover on one side close to the second bearing, and is detachably connected with a sealing cover on one side close to the first bearing.

[0010] According to the technical scheme, the pneumatic brake is detachably connected with a fixing disc outside, a plurality of corresponding threaded holes are arranged between the fixing disc and the output flange one, and a fixing column is connected to the plurality of threaded holes.

[0011] According to the technical scheme, the brake connecting shaft is detachably connected with a conical shaft sleeve pipe on one side close to the auxiliary shaft bushing disc.

[0012] According to the technical scheme, a plurality of corresponding through holes are arranged between the output flange and the motor housing, and a hexagonal screw is detachably connected to the plurality of through holes.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] (1) By setting a brake connecting shaft and a pneumatic brake, the gear-type pneumatic motor is equipped with a braking function. The brake connecting shaft provides an installation position for the pneumatic brake, enabling the two to work together. When braking is required, compressed air enters the cylinder from the air inlet, pushing the piston frame to drive the friction disc to contact and press the rotating auxiliary shaft bushing disc, causing the brake connecting shaft to stop rotating, thereby braking gear one and gear two, and thus achieving braking of the entire gear-type pneumatic motor. When braking is required, the air path is cut off, and the piston frame drives the friction disc and the auxiliary shaft bushing disc to quickly separate under the return force of the return spring, releasing the brake. This effectively solves the problem of the lack of braking function and slow deceleration of the existing gear-type pneumatic motor, thereby avoiding the wear of pneumatic motor components caused by long-term reliance on resistance deceleration and extending the service life of the equipment.

[0015] (2) By setting a conical bushing, the connection stability between the brake connecting shaft and the auxiliary bushing disc is enhanced, ensuring that the brake connecting shaft will not shift or loosen during braking, thus improving the accuracy and reliability of braking. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Fig. 1 This is a schematic diagram of the structural composition of this utility model;

[0018] Fig. 2 This is a cross-sectional view of the internal structure of the gear pneumatic motor of this utility model;

[0019] Fig. 3 This is a cross-sectional view of the internal structure of the pneumatic brake of this utility model;

[0020] In the diagram: 10. Motor housing; 11. Gear 1; 111. First bearing; 112. Second bearing; 113. First drive shaft; 114. Brake connecting shaft; 12. Gear 2; 121. Third bearing; 122. Fourth bearing; 123. Sealing ring; 124. Second drive shaft; 125. Reducer connecting shaft; 13. Output flange 1; 14. Output flange 2; 17. Motor end cover; 18. Sealing cover; 20. Pneumatic brake; 21. Cylinder; 211. Air inlet; 212. Piston; 213. Sealing ring; 214. Return spring; 22. Piston frame; 23. Friction disc; 24. Attached shaft bushing disc; 25. Conical bushing tube. Detailed Implementation

[0021] In order for the personnel in the art to better understand the scheme of the present application, the scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the scope of protection of the present application.

[0022] Please refer to Figs. 1-3 The present application provides a technical scheme: a gear type pneumatic motor with a brake function, comprising a motor housing 10, a gear one 11 is arranged inside the motor housing 10, a gear two 12 is engaged and connected above the gear one 11, a first bearing 111 and a second bearing 112 are arranged on both sides of the gear one 11 respectively, a corresponding transmission shaft hole is arranged between the gear one 11 and the first bearing 111 and the second bearing 112, a first transmission shaft 113 is connected on the transmission shaft hole, a brake connecting shaft 114 is movably connected on the side of the second bearing 112 of the first transmission shaft 113, an output flange one 13 is detachably connected on the side of the second bearing 112 of the motor housing 10, an air inlet is arranged on the output flange one 13, a transmission shaft hole corresponding to the brake connecting shaft 114 is arranged on the output flange one 13, and the brake connecting shaft 114 movably connects a pneumatic brake 20 through the transmission shaft hole.

[0023] Through the technical scheme, a power transmission system based on gear transmission is constructed in the motor housing 10, the gear one 11 and the gear two 12 are engaged with each other, the effective transmission and conversion of power are realized, the first bearing 111 and the second bearing 112 are respectively supported on both sides of the gear one 11, the first transmission shaft 113 is connected with the gear one 11, the first bearing 111 and the second bearing 112, the stability of the rotation of the gear one 11 is ensured, and the power of the gear one 11 is effectively transmitted to the subsequent components, the brake connecting shaft 114 can rotate synchronously with the gear one 11, the output flange one 13 provides support and positioning for the brake connecting shaft 114, the brake connecting shaft 114 is connected with the pneumatic brake 20, when braking is needed, the pneumatic brake 20 applies a braking force to the brake connecting shaft 114, thereby preventing the gear one 11 and the gear two 12 from rotating, and the braking of the gear pneumatic motor is realized.

[0024] Further, the pneumatic brake 20 comprises a cylinder 21, an air inlet 211 is arranged on the top of the cylinder 21, a piston 212 is arranged inside the cylinder 21, a sealing ring 213 is arranged on the piston 212, a piston holder 22 is detachably connected on one side of the piston 212, a friction disc 23 is detachably connected on one side of the piston holder 22, a return spring 214 is detachably connected on the side of the piston holder 22 close to the piston 212, and an auxiliary shaft bushing disc 24 is detachably connected on one side of the friction disc 23.

[0025] By this technical scheme, when braking is needed, compressed air enters the air cylinder 21 from the air inlet 211, pushes the piston frame 22 to drive the friction disc 23 to contact and press the rotating shaft sleeve disc 24, so that the brake connecting shaft 114 stops rotating, thereby braking the gear one 11 and the gear two 12, and further achieving the braking of the entire gear type pneumatic motor. When the brake needs to be released, the air path is cut off, and the piston frame 22 drives the friction disc 23 to quickly separate from the shaft sleeve disc 24 under the return force of the return spring 214, thereby releasing the brake. The problem of lack of braking function and slow deceleration of the existing gear type pneumatic motor is effectively solved, thereby reducing the safety risk of personnel.

[0026] Further, the gear two 12 is provided with a third bearing 121 and a fourth bearing 122 on both sides, respectively, the third bearing 121 is provided with a sealing ring 123, the gear two 12 and the third bearing 121 and the fourth bearing 122 are provided with corresponding transmission shaft holes therebetween, the transmission shaft holes are provided with a second transmission shaft 124, the second transmission shaft 124 is movably connected with a speed reducer connecting shaft 125 on the side close to the third bearing 121, the motor housing 10 is provided with an output flange two 14 on the side close to the third bearing 121, the output flange two 14 is provided with a transmission shaft hole corresponding to the speed reducer connecting shaft 125, and the speed reducer connecting shaft 125 is arranged outside the motor housing 10 through the transmission shaft hole.

[0027] By this technical scheme, the third bearing 121 and the fourth bearing 122 provide stable support for the gear two 12, which can reduce the friction and shaking of the gear two 12 during rotation, and ensure that the gear two 12 and the gear one 11 maintain good meshing state. The sealing ring 123 prevents the lubricating liquid inside the gear pneumatic motor from leaking, and the speed reducer connecting shaft 125 is used to install a speed reducer to meet the needs of different working scenarios.

[0028] Further, the motor housing 10 is detachably connected with a motor end cover 17 on the side close to the second bearing 112, and the motor housing 10 is detachably connected with a sealing cover 18 on the side close to the first bearing 111.

[0029] By this technical scheme, during use, if the internal components of the motor fail, only the hexagonal screws need to be unscrewed, and the motor end cover 17 and the sealing cover 18 can be easily detached, so that the internal components can be directly inspected or repaired.

[0030] Further, the pneumatic brake 20 is detachably connected with a fixed disc, a plurality of threaded holes corresponding to the fixed disc and the output flange one 13 are arranged, and a plurality of fixed columns are connected to the threaded holes.

[0031] Through the technical scheme, a stable support structure is formed, the fixing column passes through corresponding threaded through holes on the fixing disc and the output flange one 13, and the pneumatic brake 20 is firmly fixed on the gear pneumatic motor, so that displacement of the pneumatic brake 20 during work is prevented.

[0032] Further, the brake connecting shaft 114 is detachably connected with the conical shaft sleeve pipe 25 on the side of the shaft sleeve disc 24.

[0033] Through the technical scheme, the conical shaft sleeve pipe 25 makes the components of the brake connecting shaft 114 and the pneumatic brake 20 closely fit, the friction generated by the fitting can effectively transmit torque, so that slippage does not occur under the conditions of high load and frequent start-stop work, and the stability of power transmission is ensured.

[0034] Further, a plurality of corresponding through holes are arranged between the output flange one 13 and the motor housing 10, and a plurality of hexagonal screws are detachably connected in the through holes.

[0035] Through the technical scheme, when the gear pneumatic motor needs to be maintained or parts need to be replaced, the output flange one 13 and the motor housing 10 can be separated only by detaching the hexagonal screws, without the need for complex tools or operations, greatly reducing the maintenance difficulty and time cost.

[0036] Working principle: After compressed air enters the gear pneumatic motor from the air inlet, the gear one 11 is driven to rotate, the gear one 11 and the gear two 12 below are engaged with each other, and under the support of the first bearing 111 and the second bearing 112, the gear one 11 can stably and smoothly rotate, thereby driving the gear two 12 to rotate synchronously, the brake connecting shaft 114, the speed reducer connecting shaft 125 and the shaft sleeve disc 24 rotate synchronously with the gear one 11, when braking is needed, compressed air enters the cylinder 21 from the air inlet 211, drives the piston frame 22 to drive the friction disc 23 to contact and press the rotating shaft sleeve disc 24, so that the brake connecting shaft 114 stops rotating, thereby braking the gear one 11 and the gear two 12, and then the entire gear type pneumatic motor is braked, when the brake needs to be released, the air path is cut off, the piston frame 22 drives the friction disc 23 to quickly separate from the shaft sleeve disc 24 under the back force of the return spring 214, and the brake is released.

[0037] In the description of the utility model, it is necessary to explain, the term "center", "upper", "lower", "left", "right", "vertical", "horizontal", "internal", "external" and so on indicate the orientation or position relation based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply that the indicated device or element must have a specific orientation and a specific orientation configuration and operation, therefore cannot be understood as the limitation to the utility model, the term "first", "second", "third" is only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the term "installation", "connection", "connection" should be understood in a broad sense, for example, can be fixedly connected, can also be detachably connected, or integrally connected, can be mechanically connected, can also be electrically connected, can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0038] In the description of the utility model, the description of the reference terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the utility model, the illustrative description of the above-mentioned terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine the different embodiments or examples described in the utility model and the characteristics of different embodiments or examples without contradiction.

[0039] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A gear type pneumatic motor with a brake function comprising a motor housing (10), characterized in that: The motor housing (10) is internally provided with a gear one (11), the gear two (12) is engaged and connected above the gear one (11), the gear one (11) is provided with first bearing (111) and second bearing (112) on both sides respectively, the gear one (11) is provided with corresponding transmission shaft hole between first bearing (111) and second bearing (112), the transmission shaft hole is connected with first transmission shaft (113), the first transmission shaft (113) is movably connected with brake connecting shaft (114) on the side of second bearing (112), the motor housing (10) is detachably connected with output flange one (13) on the side of second bearing (112), the output flange one (13) is provided with air inlet, the output flange one (13) is provided with transmission shaft hole corresponding to brake connecting shaft (114), the brake connecting shaft (114) passes through the transmission shaft hole and is movably connected with pneumatic brake (20).

2. A gear type pneumatic motor with a brake function according to claim 1, characterized in that: The pneumatic brake (20) comprises a cylinder (21), the cylinder (21) is provided with an air inlet (211) on the top, the cylinder (21) is internally provided with a piston (212), the piston (212) is provided with a sealing ring (213), the piston (212) is detachably connected with a piston holder (22) on one side, the piston holder (22) is detachably connected with a friction disc (23) on one side, the piston holder (22) is detachably connected with a reset spring (214) on the side of the piston (212), the friction disc (23) is detachably connected with an auxiliary shaft bushing disc (24) on one side.

3. A gear type pneumatic motor with a brake function according to claim 1, characterized in that: The gear two (12) is provided with third bearing (121) and fourth bearing (122) on both sides respectively, the third bearing (121) is provided with a sealing ring (123), the gear two (12) is provided with corresponding transmission shaft hole between third bearing (121) and fourth bearing (122), the transmission shaft hole is provided with second transmission shaft (124), the second transmission shaft (124) is movably connected with speed reducer connecting shaft (125) on the side of third bearing (121), the motor housing (10) is provided with output flange two (14) on the side of third bearing (121), the output flange two (14) is provided with transmission shaft hole corresponding to speed reducer connecting shaft (125), the speed reducer connecting shaft (125) passes through the transmission shaft hole and is arranged outside the motor housing (10).

4. The gear type pneumatic motor with a brake function according to claim 1, characterized in that: The motor housing (10) is detachably connected with motor end cover (17) on the side of second bearing (112), the motor housing (10) is detachably connected with sealing cover (18) on the side of first bearing (111).

5. A gear type pneumatic motor with a brake function according to claim 2, characterized in that: The pneumatic brake (20) is detachably connected with a fixed disc outside, a plurality of corresponding threaded holes are arranged between the fixed disc and the output flange one (13), and a plurality of threaded holes are connected with fixing columns.

6. A gear type pneumatic motor with a brake function according to claim 1, characterized in that: The brake connecting shaft (114) is detachably connected with a conical shaft sleeve pipe (25) on the side of the auxiliary shaft bushing disc (24).

7. The gear type pneumatic motor with a brake function according to claim 1, characterized in that: The output flange (13) and the motor housing (10) are provided with corresponding through holes, and hexagonal screws are detachably connected to the through holes.

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