Escapement type speed controller and application thereof

Abstract

The invention discloses an escapement type speed controller and application thereof, and relates to the technical field of mechanical speed governing, the speed controller comprises an escapement speed control mechanism and a transmission mechanism, the escapement speed control mechanism comprises an escapement wheel, a slip and an additional mass block, a plurality of wheel teeth are uniformly distributed on the outer circumferential surface of the escapement wheel, and the slip is arranged on the outer circumferential surface of the escapement wheel; the inner sides of the slips are provided with inlet slips and outlet slips which are matched with the gear teeth, and the inlet slips and the outlet slips are alternately meshed with the gear teeth; the additional mass blocks are detachably connected with the slips, and the additional mass blocks with different masses are replaced to change the rotational inertia of the system, so that the adjustment of the output speed is realized; the transmission mechanism comprises a speed increaser and an input end, the speed increaser is connected with an escape wheel at the input end and used for transmitting input power to the escape wheel, and the output speed is adjusted by changing the transmission ratio. The speed controller can adjust the output speed, is high in adaptability, and has the advantages of being simple in structure, easy and convenient to operate and high in reliability.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical speed regulation, and in particular to an escapement type speed controller and application thereof. Background Art

[0002] With the rapid development of science and technology and the continuous expansion of industrial applications, the importance of speed control devices in modern industry has become increasingly prominent. Among the many speed control technologies, the escapement speed controller has gradually become an important choice in many application scenarios due to its unique structure and reliable performance. However, most of the existing escapement speed controllers can only provide a fixed constant speed output, which to a certain extent limits its application scope and use effect.

[0003] Although there are some escapement-type speed controllers on the market that can adjust the output speed as needed, the operation process of these devices is relatively complicated and it is difficult to flexibly adjust them according to actual working conditions.

[0004] In the future, with the continuous advancement of industrial automation and intelligent manufacturing, the requirements for the flexibility and intelligence of speed control devices will become higher and higher. Traditional escapement speed controllers need to make technological breakthroughs, such as developing a more intelligent speed regulation system to achieve speed adjustment to meet the diverse needs under complex working conditions. Summary of the invention

[0005] The purpose of the present invention is to provide an escapement type speed controller and its application, which can design different inertias according to requirements under the condition of determined input conditions to achieve constant output speed.

[0006] To achieve the above object, the present invention provides the following solution: an escapement-type speed controller, comprising:

[0007] An escapement speed control mechanism, the escapement speed control mechanism comprising an escapement wheel, a slip and an additional mass block, a plurality of gear teeth being evenly distributed on the outer peripheral surface of the escapement wheel, an inlet shoe and an outlet shoe matching the gear teeth being provided on the inner side of the slip, the inlet shoe and the outlet shoe being alternately meshed with the gear teeth; the additional mass block is detachably connected to the slip, and the additional mass block of different masses is replaced to change the rotational inertia of the system, thereby realizing the adjustment of the output speed;

[0008] The transmission mechanism includes a speed increaser and an input end. The speed increaser is connected to the escapement wheel at the input end and is used to transmit the input power to the escapement wheel and adjust the output speed by changing the transmission ratio.

[0009] In some optional embodiments of the present invention, the empirical formula of the output speed is:

[0010]

[0011] Among them, nout is the speed at the output end; M in is the torque input at the input end, J mass is the moment of inertia of the additional mass block, and i is the transmission ratio of the speed increaser.

[0012] In some optional embodiments of the present invention, the meshing clearance between the escape wheel and the slip is 0.1 mm-0.3 mm.

[0013] In some optional embodiments of the present invention, the speed increaser is a gear speed increaser with an adjustable transmission ratio. For example, the adjustment range of the transmission ratio can be 1:2 to 1:10.

[0014] In some optional embodiments of the present invention, the escape wheel and the slips are both made of metal.

[0015] In some optional embodiments of the present invention, a through hole cooperating with the slip shaft is machined at the center of the additional mass block.

[0016] In some optional embodiments of the present invention, the additional mass block is cylindrical, annular or sector-shaped.

[0017] A load release device using an escapement-type speed controller comprises the escapement-type speed controller described in any one of the above items, wherein the input end of the escapement-type speed controller is connected to a load.

[0018] Compared with the prior art, the present invention at least discloses the following beneficial effects:

[0019] 1. Adjustable output speed: The speed controller can flexibly adjust the output speed according to demand by replacing the additional mass block and adjusting the speed increaser transmission ratio when the input conditions are determined, solving the problem of fixed output speed and inability to flexibly adjust in the prior art;

[0020] 2. Easy operation: The output speed can be adjusted by simply replacing parts (additional mass blocks and speed increasers), without the need for complicated operating procedures, reducing the difficulty of use.

[0021] 3. High reliability: Based on the periodic interaction between the escape wheel and the slips, a stable average speed can be output, ensuring that the speed controller can operate reliably under various working conditions.

[0022] 4. Simple structure: The overall structural design is simple, mainly composed of the escapement speed control mechanism and the transmission mechanism, which is easy to manufacture and maintain.

[0023] 5. Guidance by empirical formula: The present invention provides an empirical formula for guiding the selection of the speed increaser and the additional mass block, so that the user can quickly determine the appropriate component configuration according to the input torque and the required output speed, thereby improving the efficiency of design and adjustment.

[0024] 6. Strong adaptability: Since the output speed can be flexibly controlled by adjusting parameters, the speed controller can adapt to a variety of different application scenarios and working conditions and has a wide range of applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 The figure is a schematic structural diagram of an escapement-type speed controller according to an embodiment of the present invention.

[0027] In the figure: 1. Speed ​​increaser; 2. Slip; 3. Additional mass block; 4. Escape wheel. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] The cooperation principle of the escapement wheel and slip in the escapement speed controller is similar to the working principle of the escapement mechanism in mechanical clocks and watches. It mainly realizes the control of movement through the alternating actions of "escapement" and "release".

[0030] The escape wheel is usually a gear, and the shape and arrangement of its teeth have an important influence on the matching accuracy. It obtains energy from the transmission system and transmits power through the interaction between the teeth and the slips.

[0031] The slip is similar to the fork stone in a mechanical clock and is a key component that cooperates with the escape wheel. It usually has two stone surfaces, the in-slip and the out-slip, which are used to interact with the teeth of the escape wheel.

[0032] Assuming that the escapement mechanism operates normally, the beginning of a cycle is when the escapement wheel teeth begin to contact the shoe surface. Before the two come into contact, the escapement wheel and the slip have a certain speed, and then the two collide, and the speeds of the two decrease sharply; then, the escapement wheel teeth maintain point contact with the shoe surface of the slip, and the escapement wheel teeth transmit torque to the slip, and the slip accelerates under the push of the escapement wheel; after the escapement wheel teeth and the slip are out of contact, the two will rotate freely for a period of time without interfering with each other. If friction loss is not considered, during this period of time, the slip rotates at a uniform speed, and the escapement wheel rotates uniformly and accelerated under the action of the input torque until another escapement wheel tooth begins to contact the shoe surface; when they come into contact again, the two collide again, and the angular velocities of the two decrease sharply again; then the escapement wheel teeth maintain point contact with the shoe surface of the slip, and the escapement wheel teeth transmit torque to the slip, and the slip accelerates under the push of the escapement wheel; after the two are out of contact, they will rotate freely for a period of time again without interfering with each other; until the next escapement wheel tooth begins to contact the shoe surface, entering the next cycle.

[0033] When the input torque and various physical parameters in the system are determined, the times of the above-mentioned transmission, collision and free rotation are all constants, that is, the operating cycle of the mechanism is a constant, and the escape wheel rotates through the same angle in each cycle. Therefore, the escape wheel has a constant average rotation speed.

[0034] Although the escapement mechanism of the prior art can achieve speed control by utilizing the alternating engagement of the escape wheel and the pallet fork, it can only provide a fixed constant speed output and has no way to adjust the output speed as needed, and cannot flexibly adapt to the complex and changeable usage scenarios in actual production and life.

[0035] To this end, the embodiment of the present invention intends to develop an escapement-type speed controller, which can adjust the output speed according to different needs when the input conditions are determined, and is easy to operate. In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0036] Embodiment 1:

[0037] Reference Figure 1 As shown, an embodiment of the present invention provides an escapement-type speed controller, which is mainly composed of two parts: an escapement speed control mechanism and a transmission mechanism. The escapement speed control mechanism and the transmission mechanism work together to achieve precise control of the output speed.

[0038] Specifically, in this embodiment, the escapement speed control mechanism is the core component of the speed controller, responsible for realizing constant speed output and speed adjustment functions, including an escapement wheel 4, a cava 2 and an additional mass block 3. The additional mass block 3 is detachably connected to the cava 2 and can be replaced independently according to needs. By replacing the additional mass block 3 with different masses, the rotational inertia of the system is changed, thereby adjusting the output speed.

[0039] In some embodiments, the escape wheel 4 is made of high-strength alloy steel with good wear resistance and mechanical strength. For example, in a specific embodiment, the gear teeth on the escape wheel 4 are precisely machined to ensure the meshing accuracy with the slips 2. The escape wheel 4 is connected to the output end of the speed increaser 1 through a shaft, and a pair of high-precision bearings are provided between the shaft of the escape wheel 4 and the supporting structure to ensure its smooth operation and reduce friction loss. The escape wheel 4 rotates under the drive of the input torque, and interacts periodically with the slips 2 to output a constant speed.

[0040] In some embodiments, the slip 2 is also made of alloy steel to ensure its strength and durability. The inner side of the slip 2 is processed with an inlet shoe and an outlet shoe that match the teeth of the escape wheel 4, which are used to interact with the teeth of the escape wheel to achieve locking and releasing of the escape wheel. The inlet shoe and the outlet shoe periodically collide and rub with the escape wheel 4 to control the speed.

[0041] In some embodiments, the additional mass block 3 can be a circular steel mass block of a certain weight. In addition, other mass blocks of different weights are also prepared to meet different speed adjustment requirements. The shape of the additional mass block 3 can also be designed to be a ring, a fan, or other different shapes. In this embodiment, a through hole is processed in the center of the additional mass block 3 to match the shaft of the slip 2, and it is firmly fixed on the shaft of the slip 2 by a fastening screw to ensure that it will not loosen during operation.

[0042] In this embodiment, the transmission mechanism is responsible for transmitting the input power to the escape wheel 4. Specifically, the transmission mechanism includes a speed increaser 1 and an input end, the speed increaser 1 connects the input end and the escape wheel 4, the speed increaser 1 can be replaced independently, and is equipped with an empirical formula to guide the selection of the speed increaser 1 and the additional mass block 3.

[0043] In some embodiments, the speed increaser 1 can be a gear speed increaser 1 with an adjustable transmission ratio. For example, in a specific embodiment, the speed ratio of the speed increaser 1 can be adjusted from 1:2 to 1:10, which can meet the speed requirements under different working conditions. The left end of the speed increaser 1 is the input end, which is connected to the power source; the right end of the speed increaser 1 is connected to the escape wheel 4 to transmit the input torque to the escape wheel 4.

[0044] In some embodiments, the input end can be powered by a variety of means, such as a motor output shaft, a spring, a torque generated by a weight, etc. The input end is connected to the escape wheel 4 through the speed increaser 1 to transmit power to the entire speed control system. The input end provides the initial power input for the entire speed controller and is the power source for the operation of the entire system.

[0045] In a specific embodiment, the gap between the escape wheel 4 and the slip 2 needs to be precisely set, and the gap size is selected based on the test, usually between 0.1mm-0.3mm, to ensure the constant speed motion characteristics of the escapement mechanism.

[0046] In the embodiment of the present invention, given an input torque, under the drive of the input torque, the escape wheel 4 rotates and interacts periodically with the slip 2, and finally outputs a constant average speed; after the input torque is determined, the output speed is related to multiple parameters in the system, so an empirical formula is provided, which can be used to adjust the transmission ratio of the speed increaser 1 and the rotational inertia of the additional mass block 3 to adjust the output speed. When the speed controller uses the input end of the speed increaser 1 as the output end of the system, the empirical formula of its output speed is:

[0047]

[0048] Among them, n out is the speed at the output end; M in is the torque input at the input end, J mass is the moment of inertia of the additional mass block 3 , and i is the transmission ratio of the speed increaser 1 .

[0049] From the above, it can be seen that there is a certain functional relationship between the rotational inertia of the additional mass block 3 and the output speed. The functional relationship can be obtained as an empirical formula based on experiments or simulations to guide the selection of the speed increaser 1 and the additional mass block 3 when adjusting the output speed.

[0050] In a specific embodiment, the escape wheel 4 and the slip 2 require a reasonable support structure to ensure their relative positions, to ensure that they can stably interact with each other periodically during operation, and to avoid speed fluctuations caused by position deviations.

[0051] The escapement-type speed controller provided in Example 1 of the present invention has the advantages of simple structure, easy operation and high reliability.

[0052] Embodiment 2:

[0053] Embodiment 2 of the present invention provides a load release device using an escapement-type speed controller, including the escapement-type speed controller of embodiment 1. A rope pulley is arranged at the input end of the escapement speed control mechanism, and a load is hung on the rope pulley. The load may be a weight, an elastic release object, etc. The torque generated by the load is the input, and the speed of release of the rope pulley is the output; the torque generated by the load is transmitted to the escape wheel 4 through the speed increaser 1, and the escape wheel 4 starts to rotate under the drive of the torque; during the rotation process, the teeth of the escape wheel 4 and the slip 2 undergo periodic collision, friction and other interactions, and the motion cycle is determined by multiple parameters in the system and is a certain value; the angle of rotation of the escape wheel 4 in each cycle is the same, that is, the average angular velocity of the output end is constant; according to the needs, different speed increasers 1 and additional mass blocks 3 are reasonably matched to adjust the release speed.

[0054] Embodiment 3:

[0055] Embodiment 3 of the present invention provides a precision instrument constant speed drive device using an escapement-type speed controller, including the escapement-type speed controller of embodiment 1. In some precision instruments, a device capable of providing precise constant speed drive is required to ensure the measurement accuracy and stability of the instrument. The escapement-type speed controller of the present invention can be applied to such scenarios to provide a stable power source for precision instruments.

[0056] Input terminal setting: A high-precision motor is connected to the input terminal of the speed controller to provide a stable input torque through precise control of the motor. The output torque of the motor can be precisely adjusted according to the requirements of the instrument to ensure the stability and reliability of the input conditions.

[0057] Speed ​​increaser 1 selection: Choose a high-precision planetary gear speed increaser, whose transmission ratio can be accurately adjusted within a certain range, and has high transmission efficiency and small transmission error. According to the output speed range required by the instrument, determine the optimal transmission ratio of speed increaser 1 through precise calculation and testing. For example, when the instrument needs to perform high-precision measurements at low speeds, set the transmission ratio of speed increaser 1 to a smaller value to ensure the stability and accuracy of the output speed; when the instrument needs to run at a higher speed, increase the transmission ratio appropriately while ensuring the uniformity of the output speed.

[0058] Configuration of additional mass block 3: According to the accuracy requirements and motion characteristics of the instrument, a set of high-precision additional mass blocks 3 are designed. These additional mass blocks 3 are made of high-density and high-uniformity materials, and their moments of inertia are accurately measured and calibrated to be 0.01 kg·m 2 , 0.02kg·m 2 and 0.03kg·m 2In actual use, according to the measurement task and speed requirements of the instrument, a suitable additional mass block 3 is selected for replacement. By precisely controlling the moment of inertia of the additional mass block 3 and adjusting the transmission ratio of the speed increaser 1, the output speed can be precisely controlled, ensuring that the instrument can run at a precise constant speed in different measurement modes.

[0059] Output connection and effect: The input end of the speed increaser 1 is used as the output end of the entire mechanism and connected to the driving components of the precision instrument, such as the measuring turntable, scanning device, etc.

[0060] Technical effect: Under the drive of the stable input torque provided by the motor, the escape wheel 4 and the slip 2 interact periodically to output an accurate average speed. By guiding the selection of the speed increaser 1 and the additional mass block 3 through an accurate empirical formula, the accuracy and stability of the output speed can be guaranteed, meeting the strict requirements of precision instruments for constant speed drive, thereby improving the measurement accuracy and reliability of the instrument and ensuring the stable operation of the instrument under various measurement conditions.

[0061] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, 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 do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. An escapement speed controller, characterized in that: include: An escapement speed control mechanism, the escapement speed control mechanism comprising an escapement wheel (4), a slip (2) and an additional mass block (3), a plurality of gear teeth being evenly distributed on the outer peripheral surface of the escapement wheel (4), an inlet shoe and an outlet shoe matching the gear teeth being provided on the inner side of the slip (2), the inlet shoe and the outlet shoe being alternately meshed with the gear teeth; the additional mass block (3) is detachably connected to the slip (2), and the additional mass block (3) of different masses is replaced to change the rotational inertia of the system, thereby realizing the adjustment of the output speed; A transmission mechanism comprises a speed increaser (1) and an input end, wherein the speed increaser (1) is connected to an escape wheel (4) at the input end and is used for transmitting input power to the escape wheel (4) and adjusting the output speed by changing the transmission ratio.

2. The escapement speed controller according to claim 1, characterized in that: The empirical formula for the output speed is: Among them, n out is the speed at the output end; M in is the torque input at the input end, J mass is the moment of inertia of the additional mass block (3), and i is the transmission ratio of the speed increaser (1).

3. The escapement speed controller according to claim 1, characterized in that: The meshing clearance between the escape wheel (4) and the slip (2) is 0.1 mm to 0.3 mm.

4. The escapement speed controller according to claim 1, characterized in that: The speed increaser (1) is a gear speed increaser with an adjustable transmission ratio.

5. The escapement speed controller according to claim 1, characterized in that: The escape wheel (4) and the slip (2) are both made of metal.

6. The escapement speed controller according to claim 1, characterized in that: A through hole matching the axis of the slip (2) is machined at the center of the additional mass block (3).

7. The escapement speed controller according to claim 6, characterized in that: The additional mass block (3) is cylindrical, annular or sector-shaped.

8. A load release device using an escapement-type speed controller, characterized in that: The escapement-type speed controller comprises the escapement-type speed controller according to any one of claims 1 to 7, wherein the input end of the escapement-type speed controller is connected to a load.

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