motor

Abstract

Embodiments of the present invention relate to a motor, according to which the motor includes: a main body; a first valve provided inside the main body; a second valve provided separately from the first valve inside the main body; a first flow path opened and closed by the first valve or the second valve, for guiding movement of fluid; a second flow path provided separately from the first flow path inside the main body, opened and closed by the first valve or the second valve, for guiding movement of fluid; a check valve provided separately from the second valve inside the main body, operated by fluid moving through the first flow path or the second flow path; and an input flow path provided between the first valve and the second valve, through which fluid for moving the first valve and the second valve flows.

Description

TECHNICAL FIELD

[0001] Embodiments of the present application relate to a motor, and more particularly, to a motor that rotates a swing body of a construction equipment. BACKGROUND

[0002] Generally, a motor drives a device provided with the motor by providing power. Specifically, a hydraulic motor can receive working oil and drive a device according to the pressure thereof.

[0003] When such a hydraulic motor is provided in a construction equipment, power is provided in a manner that a swing body is swung from a body. When swing stop control of the upper body is performed, such a hydraulic motor blocks supply of working oil through a left swing port or a right swing port, and in a state in which supply of working oil to a left swing connection port and a right swing connection port of the hydraulic motor connected thereto is blocked, the upper body continues to swing by inertia.

[0004] Thus, a braking pressure that resists in a direction opposite to the side connected by continuous swing based on inertia of the upper body is accumulated inside the hydraulic motor, and by the weight of the upper body itself, the upper body eventually stops swinging.

[0005] In this case, the pressure formed inside the hydraulic motor is lower than the relief pressure, so that the working oil cannot be relieved, and thus, the high pressure of the side that functions as a brake is lowered, and the pressure of the opposite side that is in a low pressure state is increased, and the reverse phenomenon occurs again by the high pressure accumulated again.

[0006] In order to prevent such a reverse phenomenon, a check valve is provided in the hydraulic motor to prevent accumulation of pressure by connecting flow paths of both sides.

[0007] However, in the case of such a conventional hydraulic motor, a structure is proposed in which fluid is supplied to the check valve even if the operating state of the motor is changed, thereby reducing the starting force at the initial operation of the motor.

[0008] Also, the degree of freedom in design change of the flow path area of the check valve is low, so that it is difficult to reduce the impact.

[0009] PRIOR ART DOCUMENT

[0010] PATENT DOCUMENT

[0011] Patent Document 1: Korean Patent Laid-Open Publication No. 10-2018-0071693 SUMMARY

[0012] Embodiments of the present application provide a motor that can improve a starting force at the initial operation of swing of a swing body.

[0013] According to an embodiment of the present application, a motor includes a main body, a first valve disposed inside the main body, a second valve disposed inside the main body apart from the first valve, a first flow path for guiding movement of fluid, opened and closed by the first valve or the second valve, a second flow path disposed inside the main body apart from the first flow path, opened and closed by the first valve or the second valve, for guiding movement of fluid, a check valve disposed inside the main body apart from the second valve, operated by fluid moving through the first flow path or the second flow path, and an input flow path disposed between the first valve and the second valve, through which fluid for moving the first valve and the second valve flows.

[0014] Also, when a pressure of fluid equal to or greater than a set reference is input to the input flow path, the first valve or the second valve can block the first flow path and the second flow path.

[0015] Also, when the first flow path and the second flow path are blocked, the first valve or the second valve can block supply of fluid to the check valve.

[0016] Also, the case where a pressure of fluid equal to or greater than a set reference is input to the input flow path can be a signal input in a swing operation mode.

[0017] Also, when a pressure of fluid less than a set reference is input to the input flow path, the first valve or the second valve can connect the first flow path, the check valve, and the second flow path to each other.

[0018] Also, the case where a pressure of fluid less than a set reference is input to the input flow path can be a signal input in a swing stop mode.

[0019] Alternatively, the main body can include a first main body in which the first valve and the second valve are disposed, and a second main body connected to the first main body, in which the check valve is disposed.

[0020] Also, the first flow path and the second flow path can be formed across the first main body and the second main body.

[0021] Alternatively, the present application provides a motor provided in a construction machine to provide power for rotating a rotor, the construction machine including a body and the rotor provided on the body to be rotatable, the motor including: a check valve; a valve portion disposed apart from the check valve; an input flow path through which fluid for operating the valve portion is input according to a rotation operation signal of the rotor; a first flow path opened and closed by the valve portion and used to guide movement of the fluid to the check valve; and a second flow path disposed apart from the first flow path, opened and closed by the valve portion, and used to guide movement of the fluid to the check valve.

[0022] Further, when the rotor is in a rotation operation mode, the fluid for operating the valve portion can flow to the input flow path, thereby blocking the fluid from flowing to the check valve through the first flow path and the second flow path.

[0023] Alternatively, the present application provides a motor provided in a construction machine to provide power for rotating a rotor, the construction machine including a body and the rotor provided on the body to be rotatable, the motor including: a check valve; a valve portion disposed apart from the check valve; an input flow path through which fluid for operating the valve portion is input according to a brake pressure signal; a first flow path opened and closed by the valve portion and used to guide movement of the fluid to the check valve; and a second flow path disposed apart from the first flow path, opened and closed by the valve portion, and used to guide movement of the fluid to the check valve.

[0024] According to an embodiment of the present application, the motor can effectively improve starting power when the rotor is initially operated in a rotation operation. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 A construction machine provided with a motor according to an embodiment of the present application is shown.

[0026] Figure 2 A circuit diagram of the motor according to the present application is shown.

[0027] Figure 3 A partial cross-sectional view of the motor according to the present application is shown.

[0028] Figure 4 and Figure 5 The motor when the rotor is in a rotation mode is shown.

[0029] Figure 6 and Figure 7 The motor when the rotor is stopped or is in a reverse rotation mode is shown.

[0030] Figure 8 A partial cross-sectional view of the motor according to another embodiment of the present application is shown.

[0031] Figure 9 and Figure 10 pressure indicating the operating state of the motor of an embodiment of the present application.

[0032] Explanation of Reference Numerals

[0033] 100: main body; 110: first main body;

[0034] 111, 112: motor; 120: second main body;

[0035] 200: valve section; 210: first valve;

[0036] 220: second valve; 300: check valve;

[0037] 410: first flow path; 420: second flow path;

[0038] 500: input flow path; 10: construction machine;

[0039] 20: main body; 30: swivel body. DETAILED DESCRIPTION

[0040] Hereinafter, an embodiment of the present application will be explained in detail with reference to the drawings, so that an ordinarily skilled person in the art to which the present application pertains can easily carry out the present application. The present application can be realized by a variety of different embodiments, and is not limited to the embodiment explained here.

[0041] The drawings belong to a diagrammatic illustration, and are not illustrated in accordance with a scale of proportion. For the explicitness and convenience of the drawings, the relative size and proportion of a plurality of portions in the drawings are illustrated in a manner of being enlarged or reduced in comparison with their size, and any size is only exemplary, and is not restrictive. Moreover, for the representation of similar features, the same reference numerals are used for the same structures, elements or members appearing in two or more drawings.

[0042] The embodiment of the present application specifically illustrates the ideal embodiment of the present application. As a result, a variety of modifications of the illustration can be anticipated. Therefore, the embodiment is not limited to the specific form of the illustrated region, for example, includes a shape change based on manufacturing.

[0043] Hereinafter, with reference to Figures 1 to 7 , a motor 111 of an embodiment of the present application will be explained.

[0044] The motor 111 operates by a fluid supplied thereto, and provides power to a device in which the motor 111 is provided. Specifically, as Figure 1As shown, the motor 111 is provided in the construction equipment 10 including the body 20 and the swing body 30 provided on the body 20 to provide power for the swing work of the swing body 30. That is, the motor 111 according to an embodiment of the present application, as a hydraulic motor, can be a swing motor provided in the construction equipment 10 to provide power for the swing work of the swing body 30.

[0045] As shown, the motor 111 according to an embodiment of the present application includes a main body 100, a first valve 210, a second valve 220, a first flow path 410, a second flow path 420, a check valve 300, and an input flow path 500. Figure 2 Figure 3 As shown, the motor 111 according to an embodiment of the present application includes a main body 100, a first valve 210, a second valve 220, a first flow path 410, a second flow path 420, a check valve 300, and an input flow path 500.

[0046] The first valve 210 is provided in the main body 100. Specifically, the first valve 210 can be disposed in a first chamber 101 formed in the main body 100 and can move along the inside of the first chamber 101.

[0047] The second valve 220 is disposed apart from the first valve 210 inside the main body 100. Specifically, the second valve 220 can be disposed in a second chamber 102 formed in the main body 100 apart from the first chamber 101, and the second valve 220 can move along the inside of the second chamber 102.

[0048] The valve portion 200 can include the first valve 210 and the second valve 220.

[0049] The inside of the first flow path 410 is hollow to guide the movement of fluid. The first flow path 410 can be opened and closed by the first valve 210 or the second valve 220.

[0050] The inside of the second flow path 420 is hollow to guide the movement of fluid. The second flow path 420 can be opened and closed by the first valve 210 or the second valve 220. Also, the second flow path 420 can be disposed apart from the first flow path 410.

[0051] The check valve 300 can be disposed apart from the first valve 210 and the second valve 220 inside the main body 100. Also, the check valve 300 can operate by fluid moving through the first flow path 410 or the second flow path 420. Specifically, the check valve 300 can include a pair of valves 310 and 320, and a first check chamber 103 and a second check chamber 104 can be formed in the main body 100. The first check valve 310 can be disposed in the first check chamber 103, and the second check valve 320 can be disposed in the second check chamber 104. Also, the first check valve 310 and the second check valve 320 can form an internal flow path 301 inside to allow the first check chamber 103 and the second check chamber 104 to communicate with each other.

[0052] ​Specifically, the first flow path 410 can communicate the first chamber 101, the second chamber 102, and the first anti-reverse chamber 103. Also, the second flow path 420 can communicate the first chamber 101, the second chamber 102, and the second anti-reverse chamber 104.

[0053] The input flow path 500 is disposed between the first valve 210 and the second valve 220. Also, the input flow path 500 moves the first valve 210 and the second valve 220 according to the pressure of the fluid input thereto. That is, the first valve 210 and the second valve 220 can be selectively opened and closed according to the movement thereof by the pressure of the fluid input thereto.

[0054] Specifically, the input flow path 500 can include an input portion 510 and a branch portion 520. The input portion 510 can be an inlet through which the fluid flows into the input flow path 500. The branch portion 520 is a flow path that can be branched in a manner to supply the fluid flowing into the input portion 510 to the first valve 210 and the second valve 220.

[0055] Therefore, one side of the branch portion 520 can communicate with the first chamber 101, and the other side of the branch portion 520 can communicate with the second chamber 102.

[0056] Accordingly, in the motor 111 according to an embodiment of the present disclosure, the first flow path 410 and the second flow path 420 that supply the fluid to the anti-reverse valve 300 can be opened and closed by the first valve 210 and the second valve 220, and thus, when the anti-reverse valve 300 does not need to operate, the first flow path 410 and the second flow path 420 can be effectively blocked to improve the starting force of the motor 111.

[0057] Also, as shown in FIGS. 1 and 2, in the motor 111 according to an embodiment of the present disclosure, when the fluid having a pressure equal to or greater than a predetermined reference is input to the input flow path 500, the first flow path 410 and the second flow path 420 can be blocked. Figure 4 Figure 5 As shown in FIGS. 1 and 2, in the motor 111 according to an embodiment of the present disclosure, when the fluid having a pressure equal to or greater than a predetermined reference is input to the input flow path 500, the first flow path 410 and the second flow path 420 can be blocked.

[0058] When the fluid having a pressure equal to or greater than the predetermined reference is input through the input portion 510, the above-described pressure can be transmitted to the first valve 210 and the second valve 220 through the branch portion 520. Therefore, the fluid having a pressure equal to or greater than the predetermined reference provided through the input portion 510 can provide a power to move the first valve 210 and the second valve 220 along the first chamber 101 and the second chamber 102, respectively.

[0059] Accordingly, the first flow path 410 and the second flow path 420 are blocked, and thus, the movement of the fluid supplied to the anti-reverse valve 300 can be blocked. In this case, the first flow path 410 and the second flow path 420 can be blocked from each other.

[0060] ​Specifically, when a pressure of a fluid equal to or higher than a set reference is input through the input portion 510, the hydraulic signal pressure input below can be a pressure for a swing operation mode for swinging the swing body 30. That is, when a hydraulic signal pressure for performing a swing operation of the swing body 30 is input, the first flow path 410 and the second flow path 420 can be blocked from each other according to an inflow pressure of the fluid supplied through the input flow path 500. Thereby, in the first flow path 410 and the second flow path 420, the communication of the first check chamber 103 and the second check chamber 104 can be blocked by the first valve 210 and the second valve 220.

[0061] Therefore, when in the swing operation mode for swinging the swing body 30, the fluid flowing through the first flow path 410 or the second flow path 420 does not flow through the check valve 300, and thus the starting force of the motor 111 can be improved.

[0062] That is, when the swing body 30 performs a swing operation, the check valve 300 is supplied through the first flow path 410 or the second flow path 420, and thus the hydraulic pressure as the fluid can be prevented from moving, and the starting force of the motor 111 can be improved.

[0063] Also, as shown in FIGS. 1 to 3, when a pressure of a fluid less than a set reference is input to the input flow path 500, the motor 111 according to an embodiment of the present application can communicate the first flow path 410, the second flow path 420, and the check valve 300. Figure 6 Figure 7 As shown in FIGS. 1 to 3, when a pressure of a fluid less than a set reference is input to the input flow path 500, the motor 111 according to an embodiment of the present application can communicate the first flow path 410, the second flow path 420, and the check valve 300.

[0064] When a pressure of a fluid less than a set reference is input to the input flow path 500, the fluid is input along the first flow path 410, and the input fluid flows into the first check chamber 103. Also, the first check valve 310 inside the first check chamber 103 moves, and the fluid can be transferred to the inside of the second check valve 320 and the second check chamber 104 through the internal flow path 301. Also, the fluid of the second check chamber 104 moves through the second flow path 420.

[0065] Thereby, the first flow path 410, the check valve 300, and the second flow path 420 are communicated with each other, and thus, when the motor 111 does not cause the swing body 30 to perform a swing operation, the motor 111 can be prevented from causing the swing body 30 to swing due to inertia. That is, when the pressures of the first flow path 410 and the second flow path 420 are the same, the first flow path 410, the second flow path 420, and the check valve 300 are communicated, and thus, even when the swing operation of the swing body 30 is stopped, the motor 111 can be prevented from causing the swing body 30 to continue to swing due to inertia.

[0066] ​And, the first flow path 410, the reverse prevention valve 300, and the second flow path 420 are communicated with each other, so that when the motor 111 stops the rotation of the rotor 30, the phenomenon of reverse rotation of the motor 111 due to the high pressure generation of the braking action torque can be prevented.

[0067] With one side of the first flow path 410 or the second flow path 420 as a reference, fluid can be delivered to the reverse prevention valve 300, and the reference of such supply can be changed according to the rotation direction of the motor 111.

[0068] That is, in addition to the case where the motor 111 moves the rotor 30 in one direction and stops, when the motor 111 moves the rotor 30 in the other direction and stops, fluid can flow into the reverse prevention valve 300 through the second flow path 420.

[0069] Specifically, when the pressure of the fluid less than the set reference is input through the input portion 510, it can be the hydraulic signal pressure input when the rotation stop mode in which the rotation operation mode for the rotation of the rotor 30 is stopped (at the time of the rotation stop signal and the motor reverse rotation). That is, when the hydraulic signal pressure that stops the rotation operation of the rotor 30 is input, the first flow path 410, the reverse prevention valve 300, and the second flow path 420 can be communicated with each other according to the inflow pressure of the fluid supplied through the input flow path 500.

[0070] Therefore, when the rotation of the rotor 30 is stopped, the pressure of the first flow path 410 and the second flow path 420 is the same, and the first flow path 410, the reverse prevention valve 300, and the second flow path 420 can be communicated with each other. Therefore, the first flow path 410, the second flow path 420, and the reverse prevention valve 300 are communicated with each other, so that the phenomenon of reverse rotation of the motor 111 in the opposite direction in which it should be rotated and the phenomenon of reverse rotation again can be effectively prevented. That is, the first flow path 410, the reverse prevention valve 300, and the second flow path 420 can be communicated with each other, so that the motor 111 can be prevented from rotating in the opposite direction due to the phenomenon of reverse rotation.

[0071] And, the first flow path 410, the reverse prevention valve 300, and the second flow path 420 are communicated with each other, so that the impact caused when the motor 111 is reversed can be reduced.

[0072] As an example, the pressure input through the input portion 510 can be a brake pressure signal. That is, the brake pressure signal can be received from an operation portion of a handle, not shown, and delivered to the input portion 510.

[0073] Therefore, the motor 111 of one embodiment of the present application can be selectively operated using the brake pressure signal without an additional signal for operating the first valve 210 and the second valve 220 or an additional valve device.

[0074] And, when the anti-reverse valve 300 and the first flow path 410 and the second flow path 420 are communicated, the flow path area can be sufficiently secured, and thus the anti-reverse function as the function of the anti-reverse valve 300 can be improved. Specifically, the flow path area of the anti-reverse valve 300 can be largely secured, and thus the impact caused by the reverse phenomenon can be reduced.

[0075] As shown in FIG. 1, the motor 111 according to an embodiment of the present application can include a first body 110 and a second body 120. Figure 8 As shown in FIG. 1, the motor 111 according to an embodiment of the present application can include a first body 110 and a second body 120.

[0076] The first valve 210 and the second valve 220 can be provided in the first body 110. Specifically, the first chamber 101 provided with the first valve 210 can be formed in the first body 110, and the second chamber 102 provided with the second valve 220 can be formed to be separated from the first chamber 101.

[0077] The second body 120 can be connected to the first body 110. The anti-reverse valve 300 can be provided in the second body 120. Specifically, the first anti-reverse chamber 103 and the second anti-reverse chamber 104 can be formed in the second body 120. And, the first anti-reverse valve 310 can be provided in the first anti-reverse chamber 103, and the second anti-reverse valve 320 can be provided in the second anti-reverse chamber 104.

[0078] That is, the inflow of the fluid into the anti-reverse valve 300 can be selectively controlled by additionally providing the first body 110 in the region of the second body 120 in which the existing anti-reverse valve 300 is provided.

[0079] In other words, as needed, the first body 110 can be additionally provided in the structure in which only the second body 120 is provided, to effectively improve the starting force of the motor 111.

[0080] And, the first flow path 410 and the second flow path 420 of the motor 112 according to another embodiment of the present application can be formed across the first body 110 and the second body 120.

[0081] One end of the first flow path 410 can be formed in the first body 110, and the other end can be communicated with the first anti-reverse chamber 103 of the second body 120.

[0082] One end of the second flow path 420 can be formed in the first body 110, and the other end can be communicated with the second anti-reverse chamber 104 of the second body 120.

[0083] Referring to FIGS. 2 and 3, graphs showing the pressure change based on time of the motor 111 according to an embodiment of the present application are described. Figure 9 Figure 10 Referring to FIGS. 2 and 3, graphs showing the pressure change based on time of the motor 111 according to an embodiment of the present application are described.

[0084] Figure 9 ​The diagram shows that motor 111 begins to rotate in section A. In this case, the pressure of the fluid, which is a brake pressure signal above a specified pressure, flows into the input flow path 500.

[0085] Figure 9 In this context, Inlet Pressure represents the fluid pressure in the first flow path 410. Outlet Pressure represents the fluid pressure in the second flow path 420. SH Pressure represents the fluid pressure in the input flow path 500. Speed ​​represents the speed of motor 111.

[0086] Therefore, the first valve 210 and the second valve 220 block the first flow path 410 and the second flow path 420 to prevent fluid from flowing into the anti-backflow valve 300 through the first flow path 410 and the second flow path 420.

[0087] Therefore, as Figure 9 As shown, the first flow path 410 and the second flow path 420 are not connected, thus exhibiting different pressure states.

[0088] Furthermore, the rotational speed of motor 111 can be adjusted according to operation to increase the initial response speed, thereby reducing start-up losses and improving responsiveness. That is, as motor 111 begins to rotate, start-up losses of motor 111 can be effectively reduced.

[0089] Figure 9 This illustrates stopping the rotary operation of motor 111 in section B. In this case, the pressure of the fluid, which is a brake pressure signal less than a specified pressure, flows into the input flow path 500.

[0090] Therefore, the first valve 210 and the second valve 220 open the previously blocked first flow path 410 and second flow path 420. Furthermore, the fluid flowing through the first flow path 410 causes the anti-backflow valve 300 to operate and move through the second flow path 420. The anti-backflow valve 300 moves with the aid of the input fluid.

[0091] Therefore, as Figure 9 As shown, the first flow path 410, the second flow path 420 and the anti-backflow valve 300 are interconnected, so that the first flow path 410 and the second flow path 420 are under the same pressure.

[0092] Figure 9 The phenomenon of motor 111 reversing in section C is shown. In this case, similar to the cyclic cessation of motor 111 described above, the pressure of the fluid, which is a brake pressure signal less than a specified pressure, flows into the input flow path 500.

[0093] Specifically, the pressure of the second flow path 420 is greater than the pressure of the first flow path 410, and the pressure of the first flow path 410 will also be greater than the pressure of the second flow path 420, thereby causing the reverse rotation phenomenon of the motor 111.

[0094] In this case, the first flow path 410, the second flow path 420, and the anti-reverse valve 300 are in communication with each other, and thus, as the moving direction of the anti-reverse valve 300 changes, the pressures of the first flow path 410 and the second flow path 420 are the same, thereby preventing movement of the motor 111 due to the reverse rotation phenomenon.

[0095] That is, due to the same fluid pressures of the first flow path 410 and the second flow path 420, the anti-reverse valve 300 can be in communication with each other to prevent movement of the motor 111 due to inertia. That is, when the pressures of the fluids of the first flow path 410 and the second flow path 420 are the same, the anti-reverse valve 300 causes them to be in communication with each other to prevent movement of the motor 111.

[0096] Also, as Figure 9 shown, compared to the existing motor, the motor 111 of an embodiment of the present application can cause the first flow path 410, the second flow path 420, and the anti-reverse valve 300 to be in communication when reversed, thereby effectively reducing the impact applied to the motor 111 and the plurality of valves provided inside the same. In this case, Figure 10 Figure 10 In the graph, the inlet pressure (Before) indicates the fluid pressure of the first flow path of the existing motor. The outlet pressure (Before) indicates the fluid pressure of the second flow path 420 of the existing motor. The inlet pressure indicates the fluid pressure of the first flow path 410 of the motor 111 of an embodiment of the present application. The outlet pressure of the motor 111 of an embodiment of the present application indicates the fluid pressure of the second flow path 420.

[0097] The above describes an embodiment of the present application with reference to the accompanying drawings, but it will be understood by those skilled in the art that the present application can be implemented in other specific embodiments without changing the technical idea or essential characteristics of the present application.

[0098] Therefore, it must be understood that the above-described embodiments are merely illustrative in all aspects and do not limit the present application, and the scope of the present application should be indicated by the scope of the invention, not by the above detailed description, and should be interpreted as all modified and deformed embodiments derived from the meaning, scope, and equivalent concept of the scope of the invention are included in the scope of the present application.

Claims

1. A motor, characterized in that, include: main body; The first valve is located inside the aforementioned main body; The second valve is disposed inside the aforementioned main body, separated from the aforementioned first valve; The first flow path, through the opening and closing of the first valve or the second valve mentioned above, is used to guide the movement of fluid; The second flow path is configured separately from the first flow path within the main body and is used to guide the movement of fluid by opening and closing the first valve or the second valve. An anti-reverse valve, disposed separately from the second valve within the aforementioned main body, operates by means of fluid moving through the first or second flow path; and An input flow path, configured between the first valve and the second valve, allows fluid to flow in to move both the first and second valves. When a pressure of fluid above a set reference is input into the above-mentioned input flow path, the first valve or the second valve blocks the first flow path and the second flow path.

2. The motor according to claim 1, characterized in that, When the first flow path and the second flow path are blocked, the first valve or the second valve blocks the supply of fluid to the anti-reverse valve.

3. The motor according to claim 1, characterized in that, The signal input in the rotary working mode is when the pressure of the fluid above the set reference is input into the above input flow path.

4. The motor according to claim 1, characterized in that, When the pressure of the fluid input to the above-mentioned input flow path is less than the set reference, the above-mentioned first valve or the above-mentioned second valve connects the above-mentioned first flow path, the above-mentioned anti-backflow valve and the above-mentioned second flow path to each other.

5. The motor according to claim 4, characterized in that, The signal input in the gyrostop mode is when the pressure of the fluid input to the above input path is less than the set reference.

6. The motor according to claim 1, characterized in that, The aforementioned entities include: The first main body is equipped with the aforementioned first valve and the aforementioned second valve; and The second main body is connected to the first main body and is equipped with the aforementioned anti-backflow valve.

7. The motor according to claim 6, characterized in that, The aforementioned first flow path and the aforementioned second flow path are formed by spanning the aforementioned first entity and the aforementioned second entity.

8. A motor, disposed in engineering machinery to provide power for rotating a rotating body, the engineering machinery comprising a body and a rotating body, the rotating body being disposed on the body and capable of rotating, the motor being characterized in that it comprises: Anti-backflow valve; The valve section is configured separately from the aforementioned anti-backflow valve; The fluid that enables the valve section to operate is input into the input flow path according to the gyratory operation signal of the gyratory body. The first flow path, through the opening and closing of the aforementioned valve section, is used to guide the movement of fluid to the aforementioned anti-backflow valve; as well as The second flow path, configured separately from the first flow path, guides the movement of fluid to the anti-backflow valve through the opening and closing of the valve section. When the gyratory body is in gyratory working mode, the fluid that causes the valve to operate flows into the input flow path, thereby blocking the fluid that flows into the anti-reverse valve through the first flow path and the second flow path.

9. A motor, disposed in engineering machinery to provide power for rotating a rotating body, the engineering machinery comprising a body and a rotating body, the rotating body being disposed on the body and capable of rotating, the motor being characterized in that it comprises: Anti-backflow valve; The valve section is configured separately from the aforementioned anti-backflow valve; The fluid that enables the valve section to operate is input into the input flow path according to the brake pressure signal; The first flow path, through the opening and closing of the aforementioned valve section, is used to guide the movement of fluid to the aforementioned anti-backflow valve; as well as The second flow path, configured separately from the first flow path, guides the movement of fluid to the anti-backflow valve through the opening and closing of the valve section. When fluid that is a brake pressure signal above a set reference is input into the above-mentioned input flow path, the above-mentioned valve section blocks the above-mentioned first flow path and the above-mentioned second flow path.

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