JP3922119B2 - Running-in method of fluid pressure generator - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a running-in method of a fluid pressure generating device, and more particularly to a running-in operation of a spring plate that biases an assist load that assists a fluid pressure generating member that generates fluid pressure inside a gear pump or the like.
[0002]
[Prior art]
As a gear pump, a trochoid comprising an inner rotor and an outer rotor housed in a casing, and a plurality of casings housing the inner rotor and outer rotor are stacked in the axial direction so that the inner rotor is driven to rotate by rotation of a drive shaft or the like. There is a pump. In this type of trochoid pump, in order to keep the fluid pressure generated by the intermeshing engagement between the inner rotor and the outer rotor hermetically, it is necessary to join the casings to be stacked by full circumference welding or the like. As shown in FIG. 9, a plurality of casings that house the inner rotor and outer rotor are stacked in the axial direction, and the casings are welded all around to form a pump subassembly. Further, there is a housing in which a pump subassembly is accommodated in a housing by sandwiching a spring plate as an urging means for applying an assist load so as not to lose the fluid pressure generated by the pump subassembly (see FIG. 4). The assist load of the spring plate is adjusted by the screwing position of the screwing member that is screwed into the opening end of the housing.
[0003]
Note that the spring plate that generates this assist load is a break-in operation by repeatedly bending the spring plate in order to suppress load fluctuations due to the influence of the variation of the parts formed in the manufacturing process, that is, workpiece dimensions and temperature changes. It is necessary to do. Therefore, in the conventional running-in method, the pressing start position that bends the spring plate is set as a predetermined fixed position, and the pressing operation from the pressing start position to the end position where the running-in operation is required is repeated at ultra-low speed. It was.
[0004]
[Problems to be solved by the invention]
In the conventional running-in operation method described above, it is necessary to determine a predetermined fixed position by expecting a maximum value within a range of variations of members constituting the product, such as variation in product height, at least variation in spring plate height. For this reason, the pressing operation in the ultra-low speed state starts before contacting the product, and the moving distance that operates at the ultra-low speed becomes long, and a considerable time is required for the pressing operation per time. As a result, when the pressing operation necessary for the break-in is repeated, there is a problem that the total time spent for the break-in operation becomes considerably long.
[0005]
The present invention has been made in view of such circumstances, and an object thereof is a fluid pressure generating device including a spring plate that generates an assist load for assisting a fluid pressure generating member. It is an object of the present invention to provide a break-in operation method for a fluid pressure generator that can shorten the time required for break-in operation.
[0006]
[Means for Solving the Problems]
  According to the first aspect of the present invention, a housing having a housing hole for slidably housing the fluid pressure generating member and the fluid pressure generating member and the housing hole are sandwiched between the fluid pressure generating member and attached to the fluid pressure generating member. A spring plate that biases the force, and a threaded member that locks the fluid pressure generating member and can be connected and fixed to the receiving hole.WhenA press-in operation method for a fluid pressure generating device comprising: a pressing means for pressing the fluid pressure generating member toward the spring plate; a pressing load detecting means for detecting a pressing load by the pressing means; and a pressingloadControl means for controlling the pressing means according to the pressing load detected by the detecting means is provided, and the pressing speed of the pressing means is determined by pressingloadUntil the pressing load is detected by the detecting means, a high-speed moving step for setting to a predetermined high speed, and after detecting the pressing load, the pressing speed of the pressing means until the pressing load reaches the predetermined pressing load. And a break-in process for setting to a predetermined ultra-low speed.
[0007]
Thereby, it is possible to perform the pressing operation by setting the pressing speed of the pressing means to a predetermined high speed until the pressing means contacts the fluid pressure generating member. Furthermore, it is possible to detect that the pressing means has further continued the pressing operation and contacted the fluid pressure generating member for the first time by a change in pressing load detected when the pressing means collides with the fluid pressure generating member. . Further, after detecting that the fluid pressure generating member has been contacted, the pressing speed of the pressing means can be switched to a predetermined ultra-low speed. Therefore, it is possible to perform the pressing operation of the pressing means at an extremely low speed only in a range where the pressing load in which the running-in operation of the spring plate is effective is generated, and therefore it is possible to shorten the time required for the running-in operation. .
[0008]
  According to claim 2 of the present invention, a storing step for storing the pressing position of the pressing means when the pressing load is changed in the high-speed moving step as a running-in start position, and a predetermined step in the running-in stepofAfter reaching the pressing load, set the pressing speed to an intermediate speed between a predetermined high speed and a predetermined ultra-low speed.The pressing position of the pressing meansTo the running-in start positionreturnA return step is provided.
[0009]
Thereby, it is possible to memorize | store the position where the press means contacted the fluid pressure generation member for the first time as a break-in operation start position. Therefore, when the pressing operation by the pressing means is repeated as a break-in operation, the pressing means can be started from the state in contact with the fluid pressure generating member as the original position of the pressing means in the second and subsequent repeated operations. It is possible to perform a break-in operation efficiently.
[0010]
Furthermore, in the return step of retreating to the running-in start position, it is possible to set the pressing speed to an intermediate speed between a predetermined high speed and a predetermined ultra-low speed. The intermediate speed between the predetermined high speed and the predetermined ultra-low speed can be set to the fastest intermediate speed at which the press means can stop at the break-in operation start position.
[0011]
  Claims of the invention4According to the above, in the high-speed moving process, the predetermined high speed is set to a relatively high speed until the predetermined approach start position that does not collide with the fluid pressure generating member, the press means is brought close to the fluid pressure generating member, and the predetermined approach start position is set. After reaching the predetermined high speedTheSwitch to a relatively low speed.
[0012]
As a result, the predetermined high speed as the pressing speed is approached at a relatively high speed up to a predetermined approach start position that does not collide with the fluid pressure generating member, so that the time related to the pressing operation by the pressing means can be shortened.
[0013]
  Claims of the invention3According to the break-in process and return process as one cycleSmallRepeat at least 3 cycles.
[0014]
As a result, in the break-in operation method of the present invention, the time related to the pressing operation by the pressing means can be shortened in at least one of the break-in process and the return process. Can be done automatically.
[0015]
According to claim 5 of the present invention, the fluid pressure generating member includes an inner rotor and an outer rotor accommodated in the casing, the casings are stacked in the axial direction, and the inner rotor is rotationally driven by the rotation of the drive shaft. It is the main body.
[0016]
Thus, a predetermined assist load that assists the fluid pressure generated inside can be applied to the main body of the gear pump as the fluid pressure generating member as the biasing force of the spring plate.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
  Hereinafter, the present inventionaboutSpecific embodiments will be described with reference to the drawings. FIG. 1 is a configuration diagram showing a configuration of a break-in operation device related to a break-in operation method of a fluid pressure generating device according to an embodiment of the present invention. FIG. 2 is a system connection diagram of the break-in operation device related to the break-in operation method of the fluid pressure generator according to the embodiment of the present invention. FIG. 3 is a graph showing the relationship between each step related to the break-in operation method of the fluid pressure generator according to the embodiment of the present invention and the pressing operation pattern by the pressing means. 5 to 8 relate to the embodiment of the present invention.Break-in operation of fluid pressure generatorWayEach timeIt is a typical sectional view showing the process. FIG. 4 shows an embodiment of the present invention.ofRunning-in methodButApplyFluid pressure generatorIt is a longitudinal cross-sectional view which shows schematic structure of these. FIG. 9 is shown in FIG.Fluid pressure generatorFIG. 9A is a longitudinal cross-sectional view, and FIG. 9B is a transverse cross-sectional view seen from the BB direction of FIG. 9A.
[0018]
  As shown in FIG.TheFluid pressure generator such as a pumpRelated to the running-in methodThe spring plate 93 that urges an assist load that assists the fluid pressure generating member 91 that is the main body of the fluid pressure generating device 9 is performed..
[0019]
As shown in FIG. 1, the break-in operation device 1 expresses main functions as means, and as shown in FIG. 1, so-called pressing means 2 that presses a fluid pressure generating member 91 against a spring plate 93 as an urging means, and pressing means 2 A pressure load detecting means 4 for detecting the pressure load pressed by the pressure load detecting means 4 and a control means 5 for controlling the pressing means 2 in accordance with the pressure load detected by the pressure load detecting means 4 (specifically, a change in the pressure load). It is configured.
[0020]
As shown in FIG. 1, the press means 2 includes a press motor shaft 2a that can reciprocate in the vertical direction in FIG. 1 and a motor drive device (hereinafter referred to as a reciprocating motion of the press motor shaft 2a). 2b) (referred to as a press motor drive unit). The press motor driving unit 2b includes a speed reducer or a belt driving device as means for converting the rotational motion into a reciprocating motion. The press motor shaft portion 2a driven by the press motor driving portion 2b can perform a reciprocating motion, that is, a downward pressing operation in FIG. 1 and an upward releasing operation in FIG. The press means 2 may be any press device as long as it can press the fluid pressure generating member 91 against the spring plate 93 and apply a pressing load.
[0021]
The pressing load detecting means 4 is a detecting means for detecting the pressing load pressed by the pressing means 2, and is provided in the pressing means 2 (specifically, the press motor shaft portion 2a) as shown in FIG. . The pressing load detection means 4 may be a known load measuring device such as a so-called load cell that measures an applied load. Thus, the pressing means 2 presses the fluid pressure generating member 91 against the spring plate 93 and presses the spring plate 93 via the fluid pressure generating member 91, thereby detecting the urging force of the spring plate 93 as a pressing load. Is possible.
[0022]
As shown in FIG. 1, the control means (hereinafter referred to as a control device) 5 controls the press means 2 (specifically, the press motor drive unit 2 b) in accordance with the pressing load detected by the pressing load detection means 4. A read-only memory (ROM) 52a that stores a program necessary for various software processes, a central processing unit (CPU) 51 that executes the program, and a program required for the program. The main component is a writable memory (RAM) 52b for temporarily storing variables (see FIG. 2). Specifically, as shown in FIG. 2, the control device 5 includes a CPU 51, memories 52a and 52b, an input / output interface 53, a press motor control module 55, and an A / D conversion module 59 for A / D converting the amplified sensor output. , And a bus 61 for performing data communication between them. The input / output device 54 for inputting the parameters of the pressing operation 2 of the pressing means 2 is connected to the input / output interface 53, and the input parameters are stored in a memory (RAM) 52b. The press motor drive unit 2 b of the press means 2 is connected to the motor drive circuit 56 and operates according to a command from the press motor control module 55. The load cell as the pressing load detecting means 4 is connected to a load output amplifier 60 that amplifies the detected signal, and takes in the pressing load value as a digital signal through the A / D conversion module 59.
[0023]
  here,Fluid pressure generator 9Will be described with reference to FIGS. As shown in FIG.Fluid pressure generator9 for generating fluid pressure insideRugiYapump. As shown in FIG. 4, the gear pump 9 includes a fluid pressure generating member (hereinafter referred to as a pump subassembly) 91 that forms a main body of the gear pump 9, and a housing hole 92a that slidably houses the pump subassembly 91. , A spring plate 93 that is sandwiched between the pump subassembly 91 and the receiving hole 92a and biases the pump subassembly 91 and a pump subassembly 91, and is engaged with the receiving hole 92a. And a screwing member that can be connected and fixed. The pump subassembly 91 includes an inner rotor (hereinafter referred to as an inner gear) 91a and an outer rotor (hereinafter referred to as an outer gear) 91b accommodated in a casing 91c, as shown in the cross section of FIG. 11 (b). . Further, as shown in FIG. 11A, the pump subassembly 91 stacks its casing 91c in the axial direction (vertical direction in FIG. 11A), and rotationally drives the inner gear 91a by the rotation of the drive shaft 91d. . That is, the pump subassembly 91 constitutes an internal gear pump so-called trochoid pump. As shown in FIG. 2A, the casings constituting the trochoid pump 91 are joined over the entire circumference in order to keep the fluid pressure generated by the internal meshing of the inner gear 91a and the outer gear 91b airtight. In this embodiment, as shown in FIG. 11A, the entire circumference is welded by welding such as laser welding.
[0024]
In addition, when joining all around by welding, thermal energy is inject | poured into the casing 91c etc. to be welded by welding. For this reason, welding distortion may occur in the pump subassembly 91 depending on the magnitude of the injected thermal energy. For this reason, it is desirable that the fluid pressure generated inside the pump subassembly 91 be suppressed to the entire circumference joining by laser welding processing that can keep airtight. Thereby, productivity improvement which joins all around by welding, and ensuring of airtightness by all around joining can be aimed at. Further, it is desirable that an assist load for assisting the pump subassembly 91 with respect to the fluid pressure generated inside is applied from the outside of the pump subassembly 91. Thereby, the all-around joining by welding becomes easy.
[0025]
In this embodiment, the pump subassembly 91 that is the main body of the gear pump 9 is accommodated in the accommodation hole 92a of the housing 92, and a spring plate 93 is provided between the pump subassembly 91 and the accommodation hole 92a. The spring plate 93 is sandwiched between the pump subassembly 91 and the accommodation hole 92a, so that a predetermined assist load can be applied to the pump subassembly 91. Note that the spring plate 93 described in the present embodiment is a disc spring-like elastic body.
[0026]
The predetermined assist load can be adjusted by tightening a screwing member 94 that can be screwed into the accommodation hole 92a into a predetermined position. That is, by tightening the screwing member 94 while being locked to the pump subassembly 91, the position where the screwing member 94 presses the spring plate 93 is adjusted via the pump subassembly 91. A predetermined assist load can be generated.
[0027]
The screwing member 94 constitutes a tightening connecting member together with the housing to be screwed and the spring plate 93.
[0028]
Note that the screwing member 94 of the present embodiment is a substantially cylindrical screw, and a screwing part (hereinafter referred to as a screw part) 94a that can be screwed into the accommodation hole 92a on the outer periphery of the substantially cylindrical body. Is formed. Furthermore, the inner periphery of the substantially cylindrical body has a structure that can be engaged with a driver portion (not shown) as a tightening means. Further, the size of the inner periphery is smaller than the size of the outer periphery of the tip portion of the press motor shaft portion 2a (see FIG. 6).
[0029]
  Next, a break-in operation method of the fluid pressure generator 9 of the present invention, particularly a break-in operation method of the spring plate 93 that urges the assist load to the pump subassembly 91 will be described with reference to FIGS. 3 and 5 to 8. In FIG. 3, the horizontal axis indicates time, and the vertical axis indicates the press operation of the press means 2, particularly the movement position of the press motor shaft portion 2a. It is a characteristic diagram showing a gradient of position), that is, a so-called pressing speed pattern. 5 to 8 relate to a running-in method of the fluid pressure generator 9 of the present invention.Each timeBreak-in operation device 1, especially press motor shaft 2aFluid pressure generator9 is a schematic cross-sectional view showing a positional relationship with FIG. Further, reference numerals 301 to 310 shown in FIGS. 5 to 8 correspond to the reference numerals attached to the changing points in the characteristic diagram of FIG. 3, and indicate the state of the pressing operation by the press motor shaft portion 2a. For details, see FIGS.OverpassThe process corresponds to the high-speed movement process I in FIG. FIG. 5 shows a state in which the press motor shaft 2a in FIG. 3 is at the original position Sp0 (see change point 301 in FIG. 3), and FIG. 6 shows a state in which the press motor shaft 2a in FIG. FIG. 7 shows a state where the press motor shaft portion 2a in FIG. 3 is at the approach end position Sp2 (see the change point 303 in FIG. 3). Also shown in FIGS.OverpassThe process corresponds to the break-in process II in FIG. FIG. 7 shows a state at the approach end position Sp2 in FIG. 3 and a press start state related to the break-in operation. FIG. 8 shows a press completion state (see change point 304 in FIG. 3) in which the press motor shaft portion 2a in FIG. As shown in FIGS.OverpassThe process corresponds to the return process III in FIG. As shown in FIG.OverpassThis corresponds to the original position return process IV that returns to the original position Sp0 after completing a predetermined plurality of cycles (in this embodiment, the break-in process II and the return process III are one cycle and three cycles).
[0030]
  First, as a preparatory operation for the running-in operation by the press means 2, as shown in FIG.Fluid pressure generator9 is moved from the original position Sp0 to move closer to the pump subassembly 91 side (moves downward in FIG. 1) (see FIG. 5). The moving speed (hereinafter referred to as pressing speed) ΔSp / Δt of the press motor shaft 2a that is separated from the original position Sp0 is set to a predetermined high speed by the control device 5, and this predetermined high speed is reached until the approach end position Sp2. Maintained in a state. During this period (range I shown in FIG. 3), the high-speed movement process I is configured.
[0031]
This approach end position Sp2 is a position where the press motor shaft portion 2a comes into contact with, or collides with, the pump subassembly 91. This approach end position Sp2 can be detected by a change in pressing load detected by the load cell 4. That is, when the press motor drive unit 2b is separated from the original position Sp0 and contacts the pump subassembly 91 for the first time, the load cell 4 provided in the press motor drive unit 2b causes the press motor shaft unit 2a to collide with the pump subassembly 91. The state that has been touched, that is, the touched state can be detected as a change in the pressing load.
[0032]
In addition, it is desirable that the high-speed moving process I includes the following processes. That is, in the present embodiment, as shown in FIG. 3, the high-speed movement process I includes a maximum-speed movement process Ia and an approach process Ib. In the maximum speed movement process Ia, the predetermined high speed is set to a relatively high speed as the pressing speed ΔSp / Δt until the approach start position Sp1 that does not collide with the pump subassembly 91 (see FIG. 5). Further, after the pressing operation of the press motor shaft portion 2a is continued to reach the approach start position Sp1, the predetermined high speed is set to a relatively low speed as the pressing speed ΔSp / Δt (see FIG. 6). Accordingly, the approach start position Sp1 that does not collide with the pump subassembly 91 is approached to the pump subassembly 91 at a relatively high speed, so that the time required for the pressing operation by the press motor shaft portion 2a can be shortened. In the description of the pressing speed ΔSp / Δt, the relatively low speed is a speed lower than the relatively high speed set in the highest speed moving step Ia and higher than a predetermined ultra-low speed described later. Any speed can be used.
[0033]
  In the pressing operation by the press motor shaft portion 2a, particularly the preparatory operation for the running-in operation, the fastest moving step Ia is:Fluid pressure generator9 is a step of simply approaching the pump sub-assembly 91 as 9. The relatively high speed is preferably the maximum speed possible as the apparatus capacity of the press motor shaft portion 2a, that is, the press means 2. Thereby, it is possible to further shorten the time related to the pressing operation by the press motor shaft portion 2a.
[0034]
Furthermore, since the approach process Ib is set at a lower speed than the pressing speed ΔSp / Δt of the fastest moving process Ia, the change of the pressing load by the load cell 4 can be easily monitored by the control device 5.
[0035]
Next, after detecting the pressing load by the load cell 4, that is, after detecting the contact of the press motor shaft portion 2a with the pump subassembly 91 as a change in the pressing load, the pressing speed ΔSp / Δt is set to a predetermined high speed (in detail, In this embodiment, the speed is switched from a relatively low speed) to a predetermined ultra-low speed. Then, until the pressing load detected by the load cell 4 reaches a predetermined pressing load, the predetermined ultra-low speed state is maintained (see FIG. 8). During this period (range II shown in FIG. 3), the break-in process II is constituted. As a result, the press motor shaft is limited to a range in which a pressing load that activates the break-in operation of the spring plate 93 is applied to the spring plate 93 while the press motor shaft portion 2a is pressed against the spring plate 93. The pressing speed ΔSp / Δt of the portion 2a can be performed at an extremely low speed. Accordingly, the time required for the break-in operation can be shortened.
[0036]
The predetermined pressing load is a pressing load required for the running-in operation of the spring plate 93. In other words, when the pressing operation of the same stroke by the press motor shaft portion 2a is repeated during the break-in operation, the press end position Sp3 in that process (see FIGS. 3 and 8). In the present embodiment, the process is a movement distance ΔSp2 as shown in FIGS.
[0037]
Furthermore, in this embodiment, when a change in the pressing load is detected by the load cell 4 in the high-speed movement process I (specifically, the approach process I), the pressing of the press motor shaft portion 2a when the change in the pressing load is detected. The position, that is, the approach end position Sp2 is stored in the control device 5 as a break-in operation start position. In addition, the process which memorize | stores this approach end position Sp2 as a running-in start position will be called the memory | storage process V, if represented by a process. The process stored as the running-in start position is performed immediately after the high-speed movement process I as shown in FIG. 3 if the process is completed immediately before the initial (first cycle) break-in process II shown in FIG. It may be carried out during the break-in step II. As a result, the position at which the press motor shaft portion 2a first contacts the pump subassembly 91 can be stored as the break-in operation start position Sp2. Therefore, as a running-in operation method, when the pressing operation of the same stroke by the press motor shaft portion 2a is repeated during the running-in operation, the starting position of the second and subsequent repetitive operations is set as the pressing operation from the original position Sp0 at the first time. Instead of this, it is possible to set the running-in start position Sp2 stored in the control device 5 in the storage stroke V.
[0038]
Next, after the break-in process II is completed, as shown in FIG. 3, the press motor shaft portion 2a is returned to the break-in operation start position Sp2 by the control of the control device 5 (see FIG. 7). In this period (range III shown in FIG. 3), the returning step III is constituted. As a result, the second and subsequent repetitive operations can be performed efficiently, that is, the break-in operation of the spring plate 93 can be performed efficiently.
[0039]
Furthermore, in this embodiment, in the returning step III, the pressing speed ΔSp / Δt is set to an intermediate speed between a predetermined high speed and a predetermined ultra-low speed. As a result, at the distance of the stroke ΔSp2, the pressing speed ΔSp / Δt is the fastest intermediate speed at which the press motor shaft portion 2a can stop at the break-in operation start position Sp2 among the intermediate speeds between the predetermined high speed and the predetermined ultra-low speed. It is possible to set the speed.
[0040]
The break-in stroke II and the return stroke III described above are set as one cycle, and the break-in operation method of the spring plate 93 is repeated at least three cycles (in this embodiment, three cycles as shown in FIG. 3).
[0041]
Further, as shown in FIG. 3, after the return stroke III of the third cycle is completed, the press motor shaft portion 2a is returned to the original position Sp0 (see FIG. 5). During this period (range IV shown in FIG. 3), the original position return process IV is constituted.
[0042]
In the embodiment of the present invention described above, the time required for the pressing operation by the press motor shaft portion 2a can be shortened at least in at least one of the running-in process II and the returning process III as compared with the running-in method according to the prior art. Thus, it is possible to effectively reduce the time related to the total time of the running-in operation repeated for a plurality of cycles.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing a configuration of a break-in operation device related to a break-in operation method of a fluid pressure generating device according to an embodiment of the present invention.
FIG. 2 is a system connection diagram of a break-in operation device related to a break-in operation method of the fluid pressure generator according to the embodiment of the present invention.
FIG. 3 is a graph showing the relationship between each step related to the break-in operation method of the fluid pressure generating device of the embodiment of the present invention and the pressing operation pattern by the pressing means.
FIG. 4 is an embodiment of the present invention.ofRunning-in methodButApplyFluid pressure generatorIt is a longitudinal cross-sectional view which shows schematic structure of these.
FIG. 5 relates to an embodiment of the present invention.Break-in operation of fluid pressure generatorMethodExcess ofIt is a typical sectional view showing the process.
FIG. 6 relates to an embodiment of the present invention.Break-in operation of fluid pressure generatorMethodExcess ofIt is a typical sectional view showing the process.
FIG. 7 relates to an embodiment of the present invention.Break-in operation of fluid pressure generatorMethodExcess ofIt is a typical sectional view showing the process.
FIG. 8 relates to an embodiment of the present invention.Break-in operation of fluid pressure generatorMethodExcess ofIt is a typical sectional view showing the process.
FIG. 9 shows in FIG.Fluid pressure generatorFIG. 9A is a longitudinal cross-sectional view, and FIG. 9B is a transverse cross-sectional view seen from the BB direction of FIG. 9A.
[Explanation of symbols]
  1Running-inapparatus
  2 Pressing means
  2a Press motor shaft
  2b Press motor drive unit (motor drive device)
  4 Load cell (Pressure load detection means)
  5 Control device
  9  Fluid pressure generator
  91 Pump assembly (fluid pressure generating member)
  91a Inner gear (inner rotor)
  91b Outer gear (outer rotor)
  91c casing
  91d Drive shaft
  92 Housing
  92a receiving hole
  93 Spring plate
  94 Screw (screwing member)

Claims (11)

A housing having a housing hole for slidably housing a fluid pressure generating member, a spring plate sandwiched between the fluid pressure generating member and the housing hole, and biasing a biasing force to the fluid pressure generating member; A fluid pressure generating device break-in operation method comprising a screwing member that locks the fluid pressure generating member and can be coupled and fixed to the accommodation hole,
Pressing means for pressing the fluid pressure generating member toward the spring plate;
A pressing load detecting means for detecting a pressing load by the pressing means;
Control means for controlling the pressing means according to the pressing load detected by the pressing load detection means,
A high speed moving step of setting the pressing speed of the pressing means to a predetermined high speed until the pressing load is detected by the pressing load detecting means;
A fluid pressure generation characterized by comprising a break-in process for setting a pressing speed of the pressing means to a predetermined ultra-low speed until the pressing load reaches a predetermined pressing load after the pressing load is detected. The running-in method of the device. A storing step of storing the pressing position of the pressing means when the pressing load is changed in the high-speed moving step as a running-in start position;
After reaching the predetermined pressing load in the break-in step, the pressing speed is set to an intermediate speed between the predetermined high speed and the predetermined ultra-low speed, and the pressing position of the pressing means is set to the break-in operation start position. running-process fluid pressure generating device as claimed in claim 1, characterized in that it comprises a step back return. The break-in operation method of the fluid pressure generator according to claim 2 , wherein the break-in step and the return step are set as one cycle and are repeated at least three cycles . In the high-speed moving step, a predetermined high speed is set to a relatively high speed until a predetermined approach start position that does not collide with the fluid pressure generating member, the pressing means is brought close to the fluid pressure generating member, and the predetermined approach is performed. The running-in method of the fluid pressure generating apparatus according to any one of claims 1 to 3, wherein the predetermined high speed is switched to a relatively low speed after reaching the start position .   The fluid pressure generating member includes a main body portion of a gear pump including an inner rotor and an outer rotor housed in a casing, the casings being stacked in an axial direction, and the inner rotor being rotationally driven by rotation of a drive shaft. The break-in operation method of the fluid pressure generator according to claim 1, wherein the fluid pressure generator is a break-in operation method. A housing having a housing hole for slidably housing a fluid pressure generating member, a spring plate sandwiched between the fluid pressure generating member and the housing hole, and biasing a biasing force to the fluid pressure generating member; A break-in operation device for a fluid pressure generating device provided with a screwing member that locks the fluid pressure generating member and can be coupled and fixed to the accommodation hole,
Pressing means for pressing the fluid pressure generating member toward the spring plate;
A pressing load detecting means for detecting a pressing load by the pressing means;
Control means for controlling the pressing means according to the pressing load detected by the pressing load detecting means,
The control means performs a preparatory operation for setting the pressing speed of the pressing means to a predetermined high speed until the pressing load is detected by the pressing load detecting means, and after the pressing load is detected. A break-in operation device for a fluid pressure generator, wherein the break-in operation is performed by setting the pressing speed of the pressing means to a predetermined ultra-low speed until the pressing load reaches a predetermined pressing load. The control means stores the pressing position of the pressing means when the pressing load is changed in the preparation operation as a running-in start position, and after reaching the predetermined pressing load in the running-in operation, the pressing speed is set. 7. The fluid pressure generation according to claim 6, wherein an intermediate speed between the predetermined high speed and the predetermined ultra-low speed is set to return the pressing position of the pressing means back to the break-in operation start position. The running-in device of the device. 8. The break-in operation device for a fluid pressure generating device according to claim 7, wherein the break-in operation and the return are set as one cycle and are repeated at least three cycles. In the preparatory operation, the control means sets a predetermined high speed to a relatively high speed until a predetermined approach start position that does not collide with the fluid pressure generating member, causes the pressing means to approach the fluid pressure generating member, and The break-in operation device for a fluid pressure generating device according to any one of claims 6 to 8, wherein the predetermined high speed is switched to a relatively low speed after reaching a predetermined approach start position. The fluid pressure generating member includes a main body portion of a gear pump including an inner rotor and an outer rotor housed in a casing, the casings being stacked in an axial direction, and the inner rotor being rotationally driven by rotation of a drive shaft. A break-in operation device for a fluid pressure generating device according to any one of claims 6 to 9, characterized by the following. A housing having a housing hole for slidably housing a fluid pressure generating member, a spring plate sandwiched between the fluid pressure generating member and the housing hole, and biasing a biasing force to the fluid pressure generating member; A screwing member that locks the fluid pressure generating member and can be fixedly coupled to the accommodation hole;
The pressing speed of the pressing means that presses the fluid pressure generating member toward the spring plate is set to a predetermined high speed until the pressing load is detected by the pressing load detection means that detects the pressing load by the pressing means. The break-in operation is performed by a high-speed moving step and a break-in step of setting the pressing speed of the pressing means to a predetermined ultra-low speed until the pressing load reaches a predetermined pressing load after detecting the pressing load. A fluid pressure generator .

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