Monorail crane pulley braking device

Abstract

The invention discloses a monorail crane pulley braking device, and belongs to the field of monorail crane transportation equipment. According to the technical scheme, the monorail crane pulley braking device comprises sliding rails arranged continuously and a pulley mechanism sliding along the sliding rails, braking assemblies are symmetrically and rotationally connected to the two sides of the pulley mechanism, and braking parts are arranged at the upper ends of the braking assemblies; the brake assembly rotates so that the brake part can have a first position attached to the sliding rail inner groove and a second position separated from the sliding rail inner groove, and a sleeve is arranged on the side wall of the pulley mechanism. The push rod is controlled by the driving mechanism to slide back and forth, so that the braking part is switched between the first position where the braking part is attached to the sliding rail inner groove and the second position where the braking part is separated from the sliding rail inner groove, and the snub braking function is achieved. Meanwhile, through the arrangement of the telescopic oil cylinder and the sliding rod, the posture of the carriage can be adjusted in the braking process, the braking effect is improved, the stable posture of the carriage is kept, and the service life of equipment is prolonged.

Description

Technical Field

[0001] The invention belongs to the field of monorail crane transportation equipment, and in particular relates to a monorail crane pulley braking device. Background Art

[0002] As an efficient transportation equipment, the monorail crane system is widely used in mines, factories and other places. One of its core components is the pulley brake device. This device not only needs to ensure the smooth operation of the pulley on the rail, but also needs to provide reliable braking ability in an emergency to ensure the safety of equipment and personnel. During the operation of the monorail crane, the performance of the brake system directly affects the stability and safety of the carriage, especially when running at high speed or emergency braking, the response speed and braking effect of the brake system are particularly important.

[0003] Traditional monorail crane braking devices mostly use direct braking, that is, braking is achieved through direct contact between the brake pads and the slide rails. However, this braking method has many defects. When running at high speeds, direct braking can easily cause the carriage to shake violently, and even cause the risk of the carriage overturning, which seriously threatens transportation safety. In addition, direct braking will also cause greater wear on the slide rails and brake pads, significantly shortening the service life of the equipment and increasing maintenance costs.

[0004] In order to solve these problems, the "point brake" technology came into being as an advanced braking method. Through intermittent braking actions, the point brake technology can apply braking force multiple times in a short period of time, thereby effectively reducing the shaking and impact of the carriage. This technology can not only improve the stability of braking, but also reduce the friction between the brake pads and the slide rails, extending the service life of the equipment. In the monorail crane system, the application of point brake technology is particularly important, because the monorail crane carriage is usually suspended at high altitudes, and any violent shaking may cause serious safety accidents.

[0005] However, even with the use of point braking technology, the impact of the braking process on the posture of the monorail crane carriage is still a problem that needs to be solved. During the braking process, the inertia of the carriage will cause the carriage to sway back and forth, especially during emergency braking, this swaying is more obvious. If the braking system cannot effectively control this swaying, it will not only affect the stability of the cargo in the carriage, but may also cause damage to the carriage structure. Therefore, how to maintain the stable posture of the carriage during braking has become another key issue in the braking technology of the monorail crane.

[0006] In addition, the existing monorail crane braking device also has deficiencies in the precise control and real-time adjustment of braking force. The magnitude of the braking force directly affects the braking effect and the carriage posture, but traditional braking devices often have difficulty in flexibly adjusting the braking force according to different operating conditions and load conditions. This inflexible braking method not only cannot meet the complex and changing transportation needs, but may also cause problems such as insufficient braking or excessive braking in some cases.

[0007] In summary, the design of the monorail crane pulley brake device needs to comprehensively consider multiple factors such as braking effect, carriage posture control and equipment life. The existing technology still has significant deficiencies in smooth braking, carriage posture control, precise adjustment of braking force and equipment life, and a new brake device that can solve these problems at the same time is urgently needed. By introducing the point braking technology and combining it with advanced hydraulic drive and control systems, it is expected to develop a brake device that can effectively improve the safety and stability of the monorail crane system, providing reliable technical support for the widespread application of monorail cranes. Summary of the invention

[0008] The purpose of the present application is to provide a monorail hanging pulley brake device, which has the advantages of improving the braking effect, maintaining the stability of the carriage posture, and extending the service life of the equipment.

[0009] The technical solution adopted by the present invention is:

[0010] A monorail hanging pulley braking device comprises a continuously arranged slide rail and a pulley mechanism sliding along the slide rail, wherein brake assemblies are symmetrically and rotatably connected on both sides of the pulley mechanism, a braking part is provided at the upper end of the brake assembly, and the brake assembly is rotated so that the braking part has a first position that is in contact with an inner groove of the slide rail and a second position that is separated from the inner groove of the slide rail, a sleeve is provided on the side wall of the pulley mechanism, a push rod is slidably connected through the sleeve, a sealing piston is provided in the middle of the push rod, a first spring is fixedly connected between the sealing piston and the inner wall of the sleeve, a trapezoidal block is provided at one end of the push rod close to the brake assembly, the trapezoidal block is located on the inner side of the brake assembly and slides to switch the braking part between the first position and the second position, and a driving mechanism for driving the push rod to slide back and forth is also provided in the pulley mechanism, and the driving mechanism comprises a detection unit for detecting the output pressure of the push rod and a control unit for controlling the working state of the driving mechanism.

[0011] Furthermore, the present application proposes that it also includes an oil tank, in which an oil pump assembly is provided, a telescopic oil cylinder is hingedly connected to the front end of the pulley mechanism in the direction of travel, a sliding rod is slidably connected to the telescopic oil cylinder, an oil chamber is provided between the sliding rod and the inner cavity of the telescopic oil cylinder, the driving mechanism is connected to the oil pump assembly to drive the oil pump assembly to work so as to introduce the hydraulic oil in the oil tank into the oil chamber, and when the hydraulic oil enters the oil chamber to push the sliding rod to slide toward the end away from the telescopic oil cylinder, the outer end of the sliding rod is hinged to the top of the car body equipped on the sliding mechanism.

[0012] Furthermore, the present application also proposes that the driving mechanism includes a driving motor fixed inside the pulley mechanism, the output end of the driving motor is fixedly connected to an output shaft, the oil pumping assembly is a dual-rotor oil pressure mechanism, and the output shaft is coaxially arranged and fixedly connected to one of the rotors of the oil pumping assembly.

[0013] Furthermore, the present application also proposes that the driving mechanism also includes a cam arranged on the output shaft, and the outer wall of the cam abuts against and is slidably connected to the end of the push rod.

[0014] Furthermore, the present application also proposes that the pulley mechanism includes a pulley frame body, and the upper end of the pulley frame body is symmetrically rotatably connected to walking wheels that are engaged with the inner groove of the slide rail. One of the walking wheels is provided with a tachometer, and the tachometer is electrically connected to the control unit. When the tachometer measures that the speed of the walking wheel exceeds a threshold, the control unit controls the drive motor to start, so that the braking part switches back and forth between the first position and the second position.

[0015] Furthermore, the present application also proposes that when the control unit receives a braking signal, the control unit controls the drive motor to start switching the braking part from the second position to the first position.

[0016] Furthermore, the present application also proposes that an oil inlet pipe and an oil return pipe are respectively connected between the oil tank and the inner cavity of the casing, and control valves are provided on the oil inlet pipe and the oil return pipe. The control valve is electrically connected to the control unit. When the control unit receives a braking signal, the valve on the oil inlet pipe opens and the valve on the oil return pipe closes. When the control unit receives a signal to release the brake, the valve on the oil inlet pipe closes and the valve on the oil return pipe opens.

[0017] Furthermore, the present application also proposes that a second spring is fixedly connected between the sliding rod and the telescopic cylinder, an oil guide pipe is connected between the oil tank and the oil chamber, an electromagnetic valve is provided on the oil guide pipe, and the electromagnetic valve is electrically connected to the control unit.

[0018] Furthermore, the present application also proposes that the brake assembly includes a rotating seat, a rotating frame is rotatably connected to the rotating seat, a brake pad is detachably connected to one side of the upper end of the rotating frame close to the guide rail, and the lower end of the rotating frame is rotatably connected to an auxiliary pulley.

[0019] Furthermore, the present application also proposes that an elastic member is fixedly connected between the rotating frame and the pulley frame body, and in the absence of external force, the elastic member keeps the braking part in the second position.

[0020] Due to the adoption of the above technical solution, the beneficial effects achieved by the present invention are as follows:

[0021] 1. The present application provides a brake assembly with symmetrical rotational connection, so that the brake part can switch between being in contact with and separated from the inner groove of the slide rail, thereby providing reliable braking force when needed. At the same time, the design of the push rod and the sealing piston ensures the smoothness of the braking process and reduces the impact on the carriage posture. The combination of the detection unit and the control unit of the drive mechanism ensures the rapid response and stability of the braking system. Through the application of these technical means, the problems of carriage shaking and equipment wear existing in traditional braking methods are effectively solved, and the safety and stability of the monorail crane system are improved.

[0022] 2. The pulley brake device uses hydraulic drive to achieve the braking function by combining with the oil tank, oil pump assembly and telescopic cylinder. Specifically, when the oil pump assembly is working, the hydraulic oil is introduced from the oil tank into the oil chamber of the telescopic cylinder to push the sliding rod to move. The movement of the sliding rod further drives the hinged structure on the top of the car, thereby achieving the braking effect. This solution can provide stable and controllable braking force through hydraulic drive, avoiding the violent shaking and wear problems caused by traditional direct braking methods.

[0023] 3. When the drive motor is working, the output shaft drives the cam to rotate. The outer wall of the cam will periodically push the push rod during the rotation process, so that the push rod slides back and forth in the sleeve, thereby driving the trapezoidal block to push the brake assembly to rotate, so that the brake part switches between the first position and the second position. The brake assembly can be effectively controlled without increasing the complexity, ensuring that the monorail pulley brake device can brake quickly and reliably in an emergency, thereby improving the safety and stability of the equipment. Compared with the traditional direct braking method, this design can better control the carriage posture during braking, reduce the shaking and impact of the carriage, and extend the service life of the equipment.

[0024] 4. The setting of the running wheel ensures that the pulley mechanism can run smoothly in the slide rail. The speed meter is installed on one of the running wheels, which can monitor the rotation speed of the running wheel in real time. The speed meter is electrically connected to the control unit. When the speed meter detects that the rotation speed of the running wheel exceeds the preset threshold, the control unit will control the drive motor to start, so that the brake part can be reciprocated between the first position and the second position.

[0025] Through the above-mentioned technical means, the present application can automatically start the drive motor when the speed of the traveling wheel of the pulley mechanism exceeds the threshold value, so that the braking part switches back and forth between the first position and the second position, thereby realizing the "point braking" function. This intermittent braking method can effectively reduce the shaking and impact of the carriage, improve the stability of braking, reduce the friction between the brake pads and the slide rails, and extend the service life of the equipment. Specifically, the control unit accurately controls the start and stop of the drive motor according to the speed information fed back by the tachometer, so that the brake part switches quickly between the first position and the second position, thereby achieving the effect of applying braking force multiple times in a short period of time. In addition, the card-connected design of the traveling wheel ensures the smooth operation of the pulley mechanism in the slide rail, further improving the safety and stability of the system.

[0026] 5. The control unit starts the drive motor by receiving the brake signal, so that the brake part switches from the second position to the first position. The purpose of this technical solution is to quickly switch the brake part to a position that fits the inner groove of the slide rail through motor drive in an emergency, thereby achieving a reliable braking effect.

[0027] In this technical solution, after the control unit receives the braking signal, the drive motor starts, and the drive motor is connected to the drive mechanism to enable the push rod to drive the braking part to switch positions. The movement of the push rod is controlled by the drive motor to ensure that the braking part can quickly and accurately switch from the second position to the first position. Specifically, the start of the drive motor is controlled by the control unit according to the received braking signal, and the push rod, driven by the drive motor, overcomes the elastic force of the first spring and pushes the braking part to fit with the inner groove of the slide rail, thereby achieving braking.

[0028] The advantage of this technical solution is that it can quickly respond to the brake signal in an emergency, so that the brake part can quickly switch to the braking position to ensure the safety of equipment and personnel. Compared with the traditional mechanical braking method, the motor-driven method has a faster response speed and more precise control, which can effectively improve the reliability and stability of the braking system. By driving the push rod with a motor, mechanical wear can be reduced and the service life of the equipment can be extended. In addition, this solution can also be combined with the braking technology to further improve the smoothness of the braking process, reduce the shaking and impact of the carriage, and ensure the safety and stability of the equipment operation.

[0029] 6. The flow of hydraulic oil is controlled by connecting the oil inlet pipe and the oil return pipe between the oil tank and the inner cavity of the casing, and setting control valves on these pipes. The control unit controls the valves on the oil inlet pipe and the oil return pipe to open or close according to the received braking signal or brake release signal, thereby controlling the braking and release of the pulley brake device. This control method can ensure the stability of the hydraulic system during the braking process and improve the reliability and response speed of the brake.

[0030] Furthermore, the technical solution of the present application realizes precise control of the flow of hydraulic oil by setting control valves on the oil inlet pipe and the oil return pipe and electrically connecting them to the control unit. This control method can not only improve the response speed of the braking system, but also effectively reduce the wear of the slide rails and brake pads, and extend the service life of the equipment. In addition, by controlling the opening and closing of the valve, precise control of the braking process can be achieved, the stable posture of the carriage can be maintained, shaking and impact can be reduced, and the safety and stability of the monorail crane system can be improved.

[0031] 7. By adding a second spring between the sliding rod and the telescopic cylinder, additional elastic restoring force can be provided when the hydraulic oil pushes the sliding rod to slide, thereby increasing the stability of the system. The electromagnetic valve is electrically connected to the control unit. By controlling the opening and closing of the electromagnetic valve, the flow of hydraulic oil can be precisely controlled, thereby achieving precise control of the sliding rod. This design not only improves the response speed of the braking system, but also effectively reduces the wear of the slide rail and brake pads, thereby extending the service life of the equipment.

[0032] 8. The technical solution of the present application solves the problem of complicated operation of traditional brake devices during maintenance and replacement of brake pads by improving the structural design of the brake assembly. At the same time, by setting the auxiliary pulley, the friction and wear of the brake assembly during rotation are reduced, and the service life and stability of the brake system are improved. Compared with the prior art, the present application provides a more convenient and efficient brake assembly design with significant technical advantages. Through the action of the elastic member, when no external force is applied, the brake part can automatically remain in the second position, thereby avoiding the contact between the brake part and the inner groove of the slide rail in the non-working state, reducing unnecessary friction and wear. This design can ensure that the brake device is in a released state when it is not working, thereby improving the overall life and reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of a specific embodiment of the present invention;

[0034] Figure 2 It is a front view of a specific embodiment of the present invention;

[0035] Figure 3 It is a structural schematic diagram of the driving mechanism and the oil tank in the present invention;

[0036] Figure 4 It is a schematic diagram of the structure of the sleeve and the push rod in the present invention.

[0037] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0038] In the attached picture:

[0039] 1. Pulley frame body; 11. Travel wheel; 12. Speed ​​meter; 2. Rotating frame; 21. Rotating seat; 22. Brake pad; 23. Auxiliary pulley; 3. Trapezoidal block; 4. Casing; 41. Push rod; 42. Sealing piston;

[0040] 43. first spring; 44. oil inlet pipe; 45. oil return pipe; 5. drive motor; 51. output shaft;

[0041] 52. Cam; 6. Oil tank; 7. Telescopic oil cylinder; 71. Sliding rod; 72. Second spring; 73. Oil guide pipe; 10. Slide rail. DETAILED DESCRIPTION

[0042] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in an exemplary manner in conjunction with the accompanying drawings.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.

[0044] In addition, in the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "implementation method", "example", "one embodiment", "example" or "specific example" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0047] It is understood by those skilled in the art that the monorail crane system, as an efficient transportation equipment, is widely used in mines, factories and other places, and one of its core components is the pulley brake device. This device not only needs to ensure the smooth operation of the pulley on the slide rail 10, but also needs to provide reliable braking ability in an emergency to ensure the safety of equipment and personnel. During the operation of the monorail crane, the performance of the brake system directly affects the stability and safety of the carriage, especially when running at high speed or emergency braking, the response speed and braking effect of the brake system are particularly important.

[0048] Traditional monorail crane braking devices mostly use direct braking, that is, braking is achieved through direct contact between the brake pads 22 and the slide rails 10. However, this braking method is prone to cause violent shaking of the carriage when running at high speeds, and even causes the risk of the carriage overturning. In addition, direct braking will also cause greater wear on the slide rails 10 and brake pads 22, shortening the service life of the equipment. Therefore, how to reduce the impact on the carriage posture while ensuring the braking effect has become an important issue in monorail crane braking technology.

[0049] Reference Figure 1-Figure 4A monorail suspension pulley brake device comprises a continuously arranged slide rail 10 and a pulley mechanism sliding along the slide rail 10. The pulley mechanism is symmetrically rotatably connected with brake assemblies on both sides, and a brake part is provided at the upper end of the brake assembly. The brake assembly rotates so that the brake part has a first position that fits in the inner groove of the slide rail 10 and a second position that is separated from the inner groove of the slide rail 10. A sleeve 4 is provided on the side wall of the pulley mechanism, and a push rod 41 is slidably connected through the sleeve 4. A sealing piston 42 is provided in the middle of the push rod 41, and a first spring 43 is fixedly connected between the sealing piston 42 and the inner wall of the sleeve 4. A trapezoidal block 3 is provided at one end of the push rod 41 close to the brake assembly, and the trapezoidal block 3 is located inside the brake assembly and slides so that the brake part switches between the first position and the second position. A driving mechanism for driving the push rod 41 to slide back and forth is also provided in the pulley mechanism, and the driving mechanism includes a detection unit for detecting the output pressure of the push rod 41 and a control unit for controlling the working state of the driving mechanism.

[0050] In a monorail crane system, the stability and response speed of the brake system are key to ensuring safe operation. Although the traditional direct braking method is simple, it is easy to cause violent shaking of the carriage when running at high speed, and even cause the risk of overturning. The present application sets up a brake assembly with a symmetrical rotation connection, so that the brake part can switch between contact and separation with the inner groove of the slide rail 10, thereby providing reliable braking force when needed. At the same time, the design of the push rod 41 and the sealing piston 42 ensures the smoothness of the braking process and reduces the impact on the carriage posture.

[0051] A sealing piston 42 is provided in the middle of the push rod 41, and a first spring 43 is fixedly connected between the sealing piston 42 and the inner wall of the sleeve 4. This design enables the push rod 41 to slide smoothly when subjected to a driving force, thereby avoiding the impact of a sudden braking force on the carriage. A trapezoidal block 3 is provided at one end of the push rod 41 close to the brake assembly, and the trapezoidal block 3 slides inside the brake assembly to achieve the switching of the brake part between the first position and the second position. In this way, the brake part can quickly respond to the control signal and provide the necessary braking force.

[0052] The driving mechanism includes a detection unit for detecting the output pressure of the push rod 41 and a control unit for controlling the working state of the driving mechanism. The detection unit monitors the output pressure of the push rod 41 in real time to ensure that the braking system can quickly provide sufficient braking force when needed. The control unit controls the working state of the driving mechanism according to the feedback signal of the detection unit, thereby realizing precise control of the braking system.

[0053] Compared with the traditional direct braking method, the design of the present application significantly reduces the impact on the carriage posture during braking through the symmetrically rotating connected brake assembly and the smooth sliding of the push rod 41. At the same time, the combination of the detection unit and the control unit of the drive mechanism ensures the rapid response and stability of the braking system. The application of these technical means enables the monorail suspension pulley brake device to effectively extend the service life of the equipment while ensuring the braking effect.

[0054] The present application provides a brake assembly with symmetrical rotational connection, so that the brake part can switch between being in contact with and separated from the inner groove of the slide rail 10, thereby providing reliable braking force when needed. The design of the push rod 41 and the sealing piston 42 ensures the smoothness of the braking process and reduces the impact on the carriage posture. The combination of the detection unit and the control unit of the drive mechanism ensures the rapid response and stability of the braking system. Through the application of these technical means, the problems of carriage shaking and equipment wear existing in traditional braking methods are effectively solved, and the safety and stability of the monorail crane system are improved.

[0055] As a preferred embodiment of the present application, refer to Figure 1-Figure 3 The monorail pulley brake device also includes an oil tank 6, in which an oil pump assembly is arranged, a telescopic oil cylinder 7 is hingedly connected to the front end of the pulley mechanism in the direction of travel, a sliding rod 71 is slidably connected in the telescopic oil cylinder 7, an oil chamber is provided between the sliding rod 71 and the inner cavity of the telescopic oil cylinder 7, a driving mechanism is connected to the oil pump assembly to drive the oil pump assembly to work so as to introduce the hydraulic oil in the oil tank 6 into the oil chamber, when the hydraulic oil enters the oil chamber to push the sliding rod 71 to slide toward the end away from the telescopic oil cylinder 7, the outer end of the sliding rod 71 is hinged to the top of the carriage equipped on the sliding mechanism.

[0056] In the technical solution explanation, the pulley brake device realizes the braking function by combining with the oil tank 6, the oil pump assembly and the telescopic oil cylinder 7 through hydraulic drive. Specifically, when the oil pump assembly is working, the hydraulic oil is introduced from the oil tank 6 into the oil chamber of the telescopic oil cylinder 7, pushing the sliding rod 71 to move. The movement of the sliding rod 71 further drives the hinged structure on the top of the car, thereby achieving the braking effect. This solution can provide stable and controllable braking force through hydraulic drive, avoiding the violent shaking and wear problems caused by the traditional direct braking method.

[0057] In the detailed explanation of technical features, the oil pump assembly can take various forms, such as a dual-rotor oil pressure mechanism, to improve the efficiency and stability of the oil pump. The design of the telescopic cylinder 7 can be further optimized to ensure smooth operation under hydraulic drive. The articulated structure of the sliding rod 71 and the top of the car body needs to have sufficient strength and flexibility to cope with the braking requirements under different working conditions. In addition, the system can also be equipped with a hydraulic oil filter and an oil temperature monitoring device to ensure the stable operation and long life of the hydraulic system.

[0058] In summary, the monorail crane pulley brake device proposed in this application realizes a stable and controllable braking function by introducing a hydraulic drive system, effectively solving the problems of violent shaking and wear caused by traditional braking methods. Compared with the prior art, this solution not only improves the stability of braking, but also extends the service life of the equipment. By optimizing the design of the oil pump assembly, telescopic cylinder 7 and articulated structure, the reliability and adaptability of the system are further improved, providing a strong guarantee for the safe operation of the monorail crane system.

[0059] As a preferred embodiment of the driving mechanism, refer to Figure 3 The driving mechanism includes a driving motor 5 fixed inside the pulley mechanism, an output shaft 51 fixedly connected to the output end of the driving motor 5, and the oil pumping assembly is a double-rotor oil pressure mechanism. The output shaft 51 is coaxially arranged and fixedly connected to one of the rotors of the oil pumping assembly.

[0060] The drive motor 5 is installed inside the pulley mechanism, and is coaxially connected to a rotor of the oil pump assembly through the output shaft 51 at its output end, forming a dual-rotor oil pressure mechanism. The drive motor 5 drives the rotor of the oil pump assembly to work by rotating the output shaft 51, thereby realizing the pressure delivery of hydraulic oil. This design enables the hydraulic oil to be quickly transmitted to the oil chamber when needed, ensuring the response speed and efficiency of the brake system.

[0061] The selection of the drive motor 5 can be adjusted according to the actual needs of the pulley mechanism, for example, motors of different powers can be selected to adapt to different braking needs. The dual rotor design of the oil pump assembly can improve the oil pressure efficiency and reduce the resistance loss during the hydraulic oil delivery process. In addition, the coaxial setting of the output shaft 51 and the rotor ensures the stability of the transmission process and reduces mechanical wear.

[0062] Through this design, the pulley brake device of the present application can quickly and stably control the delivery of hydraulic oil, thereby improving the response speed and reliability of the brake system. Compared with the traditional brake device, the design of the present application effectively reduces the shaking of the carriage and mechanical wear, and prolongs the service life of the equipment. Therefore, the present application solves the problems of slow braking response, large shaking of the carriage, and severe equipment wear in the prior art.

[0063] As another example of the driving mechanism, the present application further proposes that the driving mechanism further includes a cam 52 disposed on the output shaft 51 , and an outer wall of the cam 52 abuts against and is slidably connected to the end of the push rod 41 .

[0064] A cam 52 is provided on the output shaft 51 of the driving mechanism, and the outer wall of the cam 52 abuts against and is slidably connected to the end of the push rod 41. The purpose of this structural design is to promote the reciprocating motion of the push rod 41 through the rotational motion of the cam 52, thereby realizing the braking action of the brake assembly. Specifically, when the driving motor 5 is working, the output shaft 51 drives the cam 52 to rotate, and the outer wall of the cam 52 periodically pushes the push rod 41 during the rotation process, so that the push rod 41 slides back and forth in the sleeve 4, thereby driving the trapezoidal block 3 to push the brake assembly to rotate, so that the brake part switches between the first position and the second position.

[0065] The technical problem of this design is how to achieve the reciprocating motion of the push rod 41 through a simple and reliable mechanical structure to ensure that the brake assembly can quickly and accurately perform braking action when needed. This goal can be effectively achieved by using the cam 52 set on the output shaft 51 to push the push rod 41 through the rotational motion of the cam 52. The sliding connection between the cam 52 and the end of the push rod 41 ensures that the push rod 41 can slide smoothly when pushed by the cam 52, thereby driving the brake assembly to perform braking action.

[0066] The shape and size of the cam 52 can be designed according to actual needs to ensure that sufficient driving force can be provided to drive the push rod 41. Furthermore, a suitable lubrication device can be provided on the contact surface between the push rod 41 and the cam 52 to reduce friction, improve work efficiency and service life. In addition, the sealing structure between the push rod 41 and the sleeve 4 also needs to be ensured to prevent foreign matter from entering and affecting the sliding performance of the push rod 41.

[0067] This design can effectively control the brake assembly without increasing complexity, ensuring that the monorail pulley brake device can brake quickly and reliably in an emergency, thereby improving the safety and stability of the equipment. Compared with the traditional direct braking method, this design can better control the carriage posture during braking, reduce the shaking and impact of the carriage, and extend the service life of the equipment.

[0068] As a specific implementation of the pulley mechanism, refer to Figure 1-2 The pulley mechanism includes a pulley frame body 1, and the upper ends of the pulley frame body 1 are symmetrically rotatably connected with walking wheels 11 that are engaged with the inner groove of the slide rail 10. A speed meter 12 is provided on one of the walking wheels 11, and the speed meter 12 is electrically connected to the control unit. When the speed meter 12 measures that the rotation speed of the walking wheel 11 exceeds a threshold value, the control unit controls the driving motor 5 to start, so that the braking part switches back and forth between the first position and the second position.

[0069] The pulley mechanism of the present application includes a pulley frame body 1, and the upper ends of the pulley frame body 1 are symmetrically rotatably connected to the running wheels 11 that are engaged with the inner grooves of the slide rails 10. The provision of the running wheels 11 ensures that the pulley mechanism can run smoothly in the slide rails 10. The speed meter 12 is installed on one of the running wheels 11, and can monitor the rotation speed of the running wheel 11 in real time. The speed meter 12 is electrically connected to the control unit. When the speed meter 12 detects that the rotation speed of the running wheel 11 exceeds a preset threshold, the control unit controls the drive motor 5 to start, so that the brake part switches back and forth between the first position and the second position.

[0070] Through the above-mentioned technical means, the present application can automatically start the drive motor 5 when the rotation speed of the walking wheel 11 of the pulley mechanism exceeds the threshold value, so that the braking part switches back and forth between the first position and the second position, thereby realizing the "point braking" function. This intermittent braking method can effectively reduce the shaking and impact of the carriage, improve the stability of braking, reduce the friction between the brake pad 22 and the slide rail 10, and extend the service life of the equipment. Specifically, the control unit accurately controls the start and stop of the drive motor 5 according to the rotation speed information fed back by the speed meter 12, so that the braking part switches quickly between the first position and the second position, thereby achieving the effect of applying braking force multiple times in a short period of time. In addition, the clamping design of the walking wheel 11 ensures the smooth operation of the pulley mechanism in the slide rail 10, further improving the safety and stability of the system.

[0071] The pulley brake device of the present application realizes the automatic braking function when the speed of the running wheel 11 exceeds the threshold by introducing the cooperation of the speed meter 12 and the control unit, which can effectively control the shaking of the carriage and improve the stability and safety of braking. Compared with the traditional direct braking method, the technical solution of the present application can reduce the impact on the carriage posture while ensuring the braking effect, extend the service life of the equipment, and solve the problems of severe shaking of the carriage and equipment wear in the prior art.

[0072] As a preferred embodiment of the present application, when the control unit receives a braking signal, the control unit controls the drive motor 5 to start switching the braking part from the second position to the first position.

[0073] In the present application, the control unit starts the driving motor 5 by receiving the braking signal, so that the braking part switches from the second position to the first position. The purpose of this technical solution is to quickly switch the braking part to a position that fits the inner groove of the slide rail 10 through motor drive in an emergency, thereby achieving a reliable braking effect.

[0074] In this technical solution, after the control unit receives the braking signal, the drive motor 5 is started, and the drive motor 5 is connected to the drive mechanism, so that the push rod 41 drives the braking part to switch positions. The movement of the push rod 41 is controlled by the drive motor 5, ensuring that the braking part can be quickly and accurately switched from the second position to the first position. Specifically, the start of the drive motor 5 is controlled by the control unit according to the received braking signal, and the push rod 41, driven by the drive motor 5, overcomes the elastic force of the first spring 43, and pushes the braking part to fit with the inner groove of the slide rail 10, thereby achieving braking.

[0075] The advantage of this technical solution is that it can quickly respond to the braking signal in an emergency, so that the brake part can be quickly switched to the braking position to ensure the safety of equipment and personnel. Compared with the traditional mechanical braking method, the motor-driven method has a faster response speed and more precise control, which can effectively improve the reliability and stability of the braking system. By driving the push rod 41 with a motor, mechanical wear can be reduced and the service life of the equipment can be extended. In addition, the solution can also be combined with the point braking technology to further improve the smoothness of the braking process, reduce the shaking and impact of the carriage, and ensure the safety and stability of the equipment operation.

[0076] As another preferred embodiment of the present application, refer to Figure 1-Figure 2 The present application also proposes that an oil inlet pipe 44 and an oil return pipe 45 are respectively connected between the oil tank 6 and the inner cavity of the sleeve 4, and control valves are provided on the oil inlet pipe 44 and the oil return pipe 45. The control valves are electrically connected to the control unit. When the control unit receives a braking signal, the valve on the oil inlet pipe 44 opens and the valve on the oil return pipe 45 closes. When the control unit receives a signal to release the brake, the valve on the oil inlet pipe 44 closes and the valve on the oil return pipe 45 opens.

[0077] The monorail crane pulley brake device involved in the present application is mainly used to ensure the smooth operation of the pulley on the slide rail 10 and provide reliable braking ability in an emergency. The device includes a slide rail 10, a pulley mechanism, a brake assembly, a push rod 41, a drive mechanism, an oil tank 6, an oil pump assembly, a telescopic oil cylinder 7, a sliding rod 71, a control unit and other components. Through the coordinated work of these components, the braking control of the monorail crane system can be effectively achieved.

[0078] The technical solution of the present application realizes the control of the flow of hydraulic oil by connecting the oil inlet pipe 44 and the oil return pipe 45 between the oil tank 6 and the inner cavity of the sleeve 4, respectively, and setting control valves on these pipes. The control unit controls the valves on the oil inlet pipe 44 and the oil return pipe 45 to open or close respectively according to the received braking signal or the braking release signal, thereby realizing the control of braking and braking release of the pulley brake device. This control method can ensure the stability of the hydraulic system during the braking process and improve the reliability and response speed of braking.

[0079] Furthermore, the technical solution of the present application realizes precise control of the flow of hydraulic oil by setting control valves on the oil inlet pipe 44 and the oil return pipe 45 and electrically connecting them to the control unit. This control method can not only improve the response speed of the braking system, but also effectively reduce the wear of the slide rail 10 and the brake pad 22, and extend the service life of the equipment. In addition, by controlling the opening and closing of the valve, precise control of the braking process can be achieved, the stable posture of the carriage can be maintained, shaking and impact can be reduced, and the safety and stability of the monorail crane system can be improved.

[0080] Compared with the traditional monorail crane braking device, the technical solution of the present application has the following advantages: by setting the control valves on the oil inlet pipe 44 and the oil return pipe 45 and electrically connecting them with the control unit, the flow of hydraulic oil can be precisely controlled, and the response speed and reliability of the braking system can be improved; by precisely controlling the braking process, the wear of the slide rail 10 and the brake pad 22 can be effectively reduced, and the service life of the equipment can be extended; by maintaining the stable posture of the carriage, the shaking and impact can be reduced, and the safety and stability of the monorail crane system can be improved. Therefore, the technical solution proposed in the present application has significant advantages in solving the problems in the prior art.

[0081] Furthermore, the present application also proposes that a second spring 72 is fixedly connected between the sliding rod 71 and the telescopic cylinder 7, an oil guide pipe 73 is connected between the oil tank 6 and the oil chamber, an electromagnetic valve is provided on the oil guide pipe 73, and the electromagnetic valve is electrically connected to the control unit.

[0082] The technical solution of the present application is to fix the second spring 72 between the sliding rod 71 and the telescopic oil cylinder 7, so that when the hydraulic oil pushes the sliding rod 71 to slide, the second spring 72 can provide additional elastic restoring force, thereby increasing the stability of the system. The oil tank 6 is connected to the oil chamber through an oil guide pipe 73, and an electromagnetic valve is arranged on the oil guide pipe 73. The electromagnetic valve is electrically connected to the control unit. By controlling the opening and closing of the electromagnetic valve, the flow of the hydraulic oil can be accurately controlled, thereby realizing accurate control of the sliding rod 71.

[0083] The second spring 72 can be made of high-strength alloy material to ensure that it will not fail due to fatigue during long-term use. The electromagnetic valve can be a fast-response electromagnetic valve to ensure that it can act quickly after receiving the control signal to avoid affecting the braking effect of the system due to response delay. The oil guide pipe 73 can be a high-pressure resistant metal pipe to ensure that it will not leak under the action of high-pressure hydraulic oil.

[0084] By adding a second spring 72 between the sliding rod 71 and the telescopic oil cylinder 7, additional elastic restoring force can be provided when the hydraulic oil pushes the sliding rod 71 to slide, thereby increasing the stability of the system. The electromagnetic valve is electrically connected to the control unit, and by controlling the opening and closing of the electromagnetic valve, the flow of the hydraulic oil can be precisely controlled, thereby achieving precise control of the sliding rod 71. This design not only improves the response speed of the braking system, but also effectively reduces the wear of the slide rail 10 and the brake pad 22, thereby extending the service life of the equipment.

[0085] As a specific implementation of the brake assembly, refer to Figure 1-Figure 2 The brake assembly includes a rotating seat 21, on which a rotating frame 2 is rotatably connected. A brake pad 22 is detachably connected to one side of the upper end of the rotating frame 2 close to the guide rail, and a pulley 23 is rotatably connected to the lower end of the rotating frame 2.

[0086] The technical solution of the present application mainly solves the problem of installation and removal of the brake assembly. By rotating the rotating frame 2 on the rotating seat 21, the brake pad 22 can be easily installed and removed, which is convenient for maintenance and replacement. In addition, the lower end of the rotating frame 2 is rotatably connected to the auxiliary pulley 23, so that the brake assembly can be more stable during the rotation process, reducing friction and wear, and increasing the service life of the brake assembly.

[0087] Specifically, the rotating seat 21 is fixed on both sides of the pulley mechanism, the rotating frame 2 is connected to the pulley mechanism through the rotating seat 21, and the upper end of the rotating frame 2 is connected to the brake pad 22 in a detachable manner on the side close to the guide rail. When the brake pad 22 needs to be replaced, it is only necessary to remove the brake pad 22 from the rotating frame 2 and then install the new brake pad 22, which is simple and quick to operate. The lower end of the rotating frame 2 is connected to the auxiliary pulley 23 through a rotating shaft, and the auxiliary pulley 23 can provide support during the rotation process, reduce the shaking and friction of the brake assembly, and thus improve the stability and reliability of the brake.

[0088] The technical solution of the present application solves the problem of complicated operation of the traditional brake device when maintaining and replacing the brake pad 22 by improving the structural design of the brake assembly. At the same time, the friction and wear of the brake assembly during the rotation process are reduced by setting the auxiliary pulley 23, thereby improving the service life and stability of the brake system. Compared with the prior art, the present application provides a more convenient and efficient brake assembly design with significant technical advantages.

[0089] Preferably, an elastic member is fixedly connected between the rotating frame 2 and the pulley frame body 1, and in the absence of external force, the elastic member keeps the braking part at the second position.

[0090] The technical solution of the present application involves setting an elastic member between the pulley frame body 1 and the rotating frame 2. Through the action of the elastic member, when no external force is applied, the brake part can automatically remain in the second position, thereby avoiding the brake part from contacting the inner groove of the slide rail 10 in a non-working state, reducing unnecessary friction and wear. This design can ensure that the brake device is in a released state in a non-working state, thereby improving the overall life and reliability of the device.

[0091] The elastic member can be in various forms, such as a compression spring, a tension spring or a torsion spring, etc. The specific selection can be adjusted according to the actual use environment and requirements. The compression spring and the tension spring are usually installed between the rotating frame 2 and the pulley frame body 1, and the brake part is kept in the second position by the elastic force of the spring. The torsion spring can be installed on the rotating shaft to achieve the same effect by torsion force.

[0092] The advantage of this design is that, through the automatic reset function of the elastic member, the structure and control system of the brake device can be simplified, reducing the dependence on the control unit. At the same time, it avoids the contact between the brake part and the inner groove of the slide rail 10 in the non-working state, reduces wear and prolongs the service life of the device. In addition, during emergency braking, the elastic member can respond quickly to ensure that the brake part contacts the inner groove of the slide rail 10 in time, providing a reliable braking effect.

[0093] Compared with the prior art, the present application realizes the automatic resetting function of the brake part by setting an elastic member between the rotating frame 2 and the pulley frame body 1, simplifies the control system, reduces wear, prolongs the service life of the device, and provides a reliable braking effect in an emergency. Therefore, the technical solution of the present application has significant advantages in improving the safety and stability of the monorail crane system.

[0094] Anything not described in the present invention can be achieved by adopting or drawing on existing technologies.

[0095] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0096] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A monorail suspension pulley brake device, comprising a continuously arranged slide rail and a pulley mechanism sliding along the slide rail, characterized in that: The pulley mechanism is symmetrically and rotatably connected with brake assemblies on both sides, and a brake part is provided at the upper end of the brake assembly. The brake assembly is rotated so that the brake part has a first position that is in contact with the inner groove of the slide rail and a second position that is separated from the inner groove of the slide rail. A sleeve is provided on the side wall of the pulley mechanism, and a push rod is slidably connected through the sleeve. A sealing piston is provided in the middle of the push rod, and a first spring is fixedly connected between the sealing piston and the inner wall of the sleeve. A trapezoidal block is provided at one end of the push rod close to the brake assembly, and the trapezoidal block is located on the inner side of the brake assembly and slides to switch the brake part between the first position and the second position. A driving mechanism for driving the push rod to slide back and forth is also provided in the pulley mechanism, and the driving mechanism includes a detection unit for detecting the output pressure of the push rod and a control unit for controlling the working state of the driving mechanism.

2. A monorail suspension pulley brake device according to claim 1, characterized in that: It also includes an oil tank, in which an oil pump assembly is arranged, a telescopic oil cylinder is hingedly connected to the front end of the pulley mechanism in the direction of travel, a sliding rod is slidably connected to the telescopic oil cylinder, an oil chamber is arranged between the sliding rod and the inner cavity of the telescopic oil cylinder, the driving mechanism is connected to the oil pump assembly to drive the oil pump assembly to work so as to introduce the hydraulic oil in the oil tank into the oil chamber, when the hydraulic oil enters the oil chamber to push the sliding rod to slide toward the end away from the telescopic oil cylinder, the outer end of the sliding rod is hinged to the top of the carriage equipped on the sliding mechanism.

3. A monorail suspension pulley brake device according to claim 2, characterized in that: The driving mechanism includes a driving motor fixed inside the pulley mechanism, an output shaft fixedly connected to the output end of the driving motor, and the oil pumping assembly is a double-rotor oil-pressing mechanism, wherein the output shaft is coaxially arranged and fixedly connected to one of the rotors of the oil pumping assembly.

4. A monorail suspension pulley brake device according to claim 3, characterized in that: The driving mechanism further comprises a cam arranged on the output rotating shaft, and the outer wall of the cam abuts against and is slidably connected to the end of the push rod.

5. The monorail suspension pulley brake device according to claim 3, characterized in that: The pulley mechanism includes a pulley frame body, and the upper end of the pulley frame body is symmetrically rotatably connected to walking wheels that are engaged with the inner groove of the slide rail. One of the walking wheels is provided with a tachometer, and the tachometer is electrically connected to a control unit. When the tachometer measures that the speed of the walking wheel exceeds a threshold, the control unit controls the drive motor to start, so that the braking part switches back and forth between the first position and the second position.

6. A monorail suspension pulley brake device according to claim 2, characterized in that: When the control unit receives the braking signal, the control unit controls the driving motor to start switching the braking part from the second position to the first position.

7. A monorail suspension pulley brake device according to claim 6, characterized in that: An oil inlet pipe and an oil return pipe are respectively connected between the oil tank and the inner cavity of the casing. The oil inlet pipe and the oil return pipe are both provided with control valves. The control valve is electrically connected to a control unit. When the control unit receives a braking signal, the valve on the oil inlet pipe opens and the valve on the oil return pipe closes. When the control unit receives a signal to release the brake, the valve on the oil inlet pipe closes and the valve on the oil return pipe opens.

8. The monorail suspension pulley brake device according to claim 2, characterized in that: A second spring is fixedly connected between the sliding rod and the telescopic oil cylinder, an oil guide pipe is connected between the oil tank and the oil chamber, an electromagnetic valve is arranged on the oil guide pipe, and the electromagnetic valve is electrically connected to the control unit.

9. A monorail suspension pulley brake device according to any one of claims 1 to 8, characterized in that: The brake assembly comprises a rotating seat, a rotating frame is rotatably connected to the rotating seat, a brake pad is detachably connected to a side of the upper end of the rotating frame close to the guide rail, and an auxiliary pulley is rotatably connected to the lower end of the rotating frame.

10. The monorail suspension pulley brake device according to claim 9, characterized in that: An elastic member is fixedly connected between the rotating frame and the pulley frame body, and in the absence of external force, the elastic member keeps the braking part at the second position.

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