JP4905331B2 - Valve assembly - Google Patents

Description

  The present invention relates to a valve assembly for attaching an electromagnetic valve such as a linear solenoid, and more particularly to a valve assembly in which an electromagnetic valve such as a linear solenoid is attached to a valve body.

A conventional linear solenoid valve is disclosed in Patent Document 1.
For example, as shown in FIG. 2 of Patent Document 1, the linear solenoid valve has a core stator (35) provided with a cylindrical boss part (42) at an end (the numbers in parentheses are described in Patent Document 1). Is inserted into a fitting hole at the cylinder end of the valve body (4A), and a pin (54) is driven into and fixed to the fitting hole. Specifically, a fitting surface is provided in the cylindrical boss portion (42) of the core stator (35), and a pair of fitting holes are provided in the end portion of the other valve body (4A) to form a loose fitting together. is doing. At least two small through holes (53) are provided in the direction perpendicular to the axis so as to be in contact with the fitting portion, and the pin (54) is driven into the through hole (53), and a predetermined axial force is applied in the axial direction. Has been fixed.
In the case of driving and fixing with the pin (54), at least the semicircular center of the through hole (53) of the cylindrical boss portion (42) and the semicircular center of the through hole (53) on the valve body (4A) side are slightly different from each other. It is preferable that the pin (54) is elastically deformed by the offset amount, and the fixing can be surely performed by generating an appropriate axial force.
Further, the pin (54) is not limited to having a straight longitudinal axis, and the pin (54) may be curved or have a taper structure. You may fix by the axial force by.
In other words, the linear solenoid valve described in Patent Document 1 incorporates a spool and a linear solenoid (1A) directly into the valve body (4A).
JP2007-120713

However, nowadays, a solenoid having a sleeve in which a linear solenoid valve forms a plurality of valve side ports, a spool that opens and closes the valve side port, a plunger that drives the spool, and a coil that drives the plunger with electromagnetic force. And the linear solenoid valve used in an integrated manner, and the technique of Patent Document 1 cannot be used directly.
In order to adopt a structure in which this is mounted on the valve body, the following method can be considered.

FIG. 5 is an explanatory view showing a first method of making a hole for inserting a linear solenoid valve in a valve body manufactured by conventional die casting, and FIG. 6 shows a valve manufactured by conventional die casting. It is explanatory drawing which shows the 2nd method of drilling the insertion hole of a linear solenoid valve in a body.
First, as shown in FIGS. 5A to 5C, when the valve body 1 is die-cast, a hollow hole 2 having a substantially bowl-shaped cross section smaller than the insertion hole 4 of the linear solenoid valve is formed. Then, after forming the hollow hole 2 having a substantially bowl-shaped cross section, the insertion hole 3 of the fixing pin 5 is formed in the straight portion of the hollow hole 2. Thereafter, there is a first method for expanding the diameter of the insertion hole 4 so as to match the diameter of the hollow hole 2 with the diameter of a specific linear solenoid valve.
Further, as shown in FIGS. 6A to 6C, when the valve body 1 is die-cast, a small-diameter hole 2A smaller than the insertion hole 4 of the linear solenoid valve is formed, and the small-diameter meat formed by die casting is formed. After forming the hole 2A, the insertion hole 3 for the fixing pin 5 is formed in a part of the wall hole 2A. Thereafter, there is a second method in which the diameter of the insertion hole 4 is expanded so as to match the diameter of the hollow hole 2 with a specific linear solenoid valve.

First, in the above-described method 1, after forming the hollow hole 2 having a substantially bowl-shaped cross-section by die casting, when the insertion hole 3 for inserting the fixing pin into the straight portion of the hollow hole 2 is drilled, Can be easily drilled. However, when the diameter-expansion processing is performed so that the insertion hole 4 is formed along the central axis from the thinning hole 2, the central axis of the thinning hole 2 is difficult to grasp, and the design central axis cannot be obtained by processing. there is a possibility. In addition, the method 1 also has a problem that a cast hole is likely to occur because the vicinity of the substantially straight line portion is thick.
Further, in the above method 2, after forming the small-diameter hole 2A formed by die casting, when the fixing pin insertion hole 3 is drilled in a part of the hole 2A, the drill passes through the hole 2A. Due to the difference in load applied to the drill during machining, the insertion hole 3 of the fixing pin 5 may not be formed in a straight line, the drill may break during lowering, or the valve body 1 may be bitten. May not go up.

  Accordingly, the present invention has been made to solve such problems, and a valve in which an insertion hole for attaching an electromagnetic valve such as a linear solenoid valve and a fixing hole for a fixing pin for fixing both can be accurately provided in the valve body. The purpose is to provide an assembly.

The valve assembly according to claim 1 has an insertion hole for inserting a sleeve of an electromagnetic valve, and a port connected to the plurality of valve side ports in a state where the electromagnetic valve is mounted in the insertion hole. The valve that includes a valve body and a fixing pin that fixes the electromagnetic valve attached to the insertion hole of the valve body by inserting the electromagnetic valve into a fixing hole provided in the valve body, and inserts the electromagnetic valve The fixing pin insertion part formed in a part of the insertion hole of the body forms an opposing surface substantially perpendicular to the direction in which the fixing pin is inserted into the fixing hole.
Here, the electromagnetic valve is not limited to a linear solenoid valve, but may be any valve that is electromagnetically driven. The valve body has an insertion hole into which a part or all of the sleeve of the electromagnetic valve is inserted, and is provided with ports connected to the plurality of valve-side ports in the mounted state of the electromagnetic valve. The insertion hole may be partially opened, or may be formed in a fully closed state except for the insertion port of the insertion hole.
The fixing pin is used to fix the electromagnetic valve inserted into the insertion hole of the valve body to the valve body. Normally, a cylindrical shape is used, but a cylindrical shape with a taper is also used. It may be a prismatic shape.
The fixing pin insertion portion formed in a part of the insertion hole of the valve body into which the electromagnetic valve is inserted has a facing surface formed with the insertion hole as a substantially parallel surface, By forming a plane substantially perpendicular to the direction in which the fixing pin is inserted into the fixing hole, for example, even if drilled with a drill, external force other than the length direction of the drill is not applied to the rotating drill. It is to make.
Furthermore, the plane substantially perpendicular to the direction in which the fixing pin is inserted into the fixing hole is in principle a plane perpendicular to the direction in which the fixing pin is inserted, but the valve body is formed as a die. Since it may be formed by casting, it must be tapered in consideration of die cutting.

According to a second aspect of the present invention, there is provided a valve assembly having an insertion hole into which a sleeve of a linear solenoid valve is inserted, and a port connected to the plurality of valve side ports in a state where the linear solenoid valve is mounted in the insertion hole. Provided with a valve body, and a fixing pin for fixing the linear solenoid valve attached to the insertion hole of the valve body by inserting the linear solenoid valve into the fixing hole provided in the valve body. The fixing pin insertion portion of the insertion hole of the valve body to be inserted is an opposing surface substantially perpendicular to the direction in which the fixing pin is inserted into the fixing hole.
Here, the valve body has an insertion hole into which a part or all of the sleeve of the linear solenoid valve is inserted, and a port connected to the plurality of valve-side ports in a mounted state of the linear solenoid valve is disposed. The insertion hole may be partially opened, or may be formed in a fully closed state except for the insertion hole of the insertion hole.
The fixing pin is used to fix the linear solenoid valve inserted into the insertion hole of the valve body to the valve body. Usually, a cylindrical shape is used, but the cylindrical shape is tapered. However, it may be prismatic.
And, as for the fixed pin insertion part formed in a part of the insertion hole of the valve body for inserting the linear solenoid valve, the opposing surface in which the insertion hole is drilled is substantially parallel. By forming a plane substantially perpendicular to the direction in which the fixing pin is inserted into the fixing hole, for example, even when drilled with a drill, no external force other than the length direction of the drill is applied to the rotating drill. It is what you want to do.
Furthermore, the plane substantially perpendicular to the direction in which the fixing pin is inserted into the fixing hole is in principle a plane perpendicular to the direction in which the fixing pin is inserted, but the valve body is formed as a die. Since it may be formed by casting, it must be tapered in consideration of die cutting.

The insertion hole of the valve body in the valve assembly according to claim 3 has a part in the length direction, preferably a part from the end to a predetermined depth, and the cross-sectional outer shape is substantially U-shaped. Since the shape of the tunnel is such that the area of the insertion hole of the valve body is maintained, and the insertion hole of the valve body is drilled by, for example, a drill, the drill rotates Since the load for each rotation angle does not change and no external force other than the length direction of the drill is applied, the fixing hole can be formed in an opposing plane substantially perpendicular to the direction in which the fixing pin is inserted. .
Here, the substantially U-shaped cross section refers to the direction in which the fixing pin is inserted so that the external surface other than the length direction of the drill is not applied to the position of the parallel surface in contact with the sleeve of the electromagnetic valve at the curved surface. The plane is perpendicular to the plane.

According to a fourth aspect of the present invention, there is provided a valve assembly in which the fixing hole is provided in a positional relationship in which the fixing pin insertion portion formed in a part of the insertion hole of the valve body does not contact the fixing pin. is there.
Here, even if a drill is used, for example, by using a positional relationship in which the fixed pin insertion portion formed in a part of the insertion hole of the valve body does not contact the fixed pin, The fixing hole can be formed in a straight line without receiving an external force other than the length direction of the drill.

The fixed pin insertion part side formed in a part of the insertion hole of the valve body of the valve assembly according to claim 5 is provided with a feedback port on one side and the fixing hole of the fixed pin on the opposite side. It is a thing.
Here, the feedback port and the fixing hole are disposed at positions that are approximately 180 degrees apart. That is, it is arranged at the opposite position, but a slight shift does not become a problem.

The fixing pin insertion part side formed in a part of said insertion hole of the said valve body of the valve assembly concerning Claim 6 arrange | positions the said fixing pin from the edge part only in the location which arrange | positions the said insertion hole. The shape is formed by die casting up to a sufficient depth.
Here, “from the end of the insertion hole to a depth sufficient to dispose the fixing pin” means that only the portion where the fixing hole is disposed has a depth sufficient to provide the fixing hole. To do.

  The fixing pin to be inserted into the fixing hole of the valve assembly according to claim 7 is a single fixing pin, eliminating the need to use a plurality of fixing pins.

According to a first aspect of the present invention, there is provided a valve body in which an insertion hole for inserting a sleeve of an electromagnetic valve, a port connected to face a plurality of valve-side ports when the electromagnetic valve is mounted, In a valve assembly in which the electromagnetic valve mounted in the insertion hole is fixed to a fixed hole provided in the valve body by fixing a fixing pin, the electromagnetic valve is inserted in the insertion hole of the valve body. The fixed pin insertion portion formed in a part has a facing surface substantially perpendicular to the direction in which the fixing pin is inserted into the fixing hole, that is, a substantially parallel surface.
Therefore, by simply inserting the electromagnetic valve into the insertion hole of the valve body and inserting the fixing pin into the fixing hole provided in the valve body, the two can be firmly fixed and the separation of the electromagnetic valve can be prevented. At this time, the fixing pin insertion portion formed in a part of the insertion hole of the valve body into which the electromagnetic valve is inserted is a facing surface substantially perpendicular to the direction in which the fixing pin is inserted into the fixing hole. Even if the fixing hole is drilled with a drill, the load with respect to the rotation angle of the drill blade does not change depending on the rotational position. The insertion hole for attaching the valve and the fixing hole for the fixing pin for fixing both can be accurately provided. Further, even when the fixing hole is drilled with a drill, the load does not change depending on the rotation angle position of the tooth of the drill, so that it is possible to prevent the drill from being folded or biting into the valve body.

According to a second aspect of the present invention, there is provided a valve body in which an insertion hole for inserting a sleeve of a linear solenoid valve, a port connected to face a plurality of valve-side ports in a mounted state of the linear solenoid valve, and the valve In a valve assembly in which the linear solenoid valve mounted in the insertion hole of the body is fixed by inserting a fixing pin into a fixing hole provided in the valve body, the linear solenoid valve is inserted in the valve body. The fixing pin insertion portion formed in a part of the insertion hole is an opposing surface substantially perpendicular to the direction in which the fixing pin is inserted into the fixing hole, that is, a substantially parallel surface.
Therefore, by simply inserting the linear solenoid valve into the insertion hole of the valve body and inserting the fixing pin into the fixing hole provided in the valve body, both of them can be firmly fixed and the separation of the linear solenoid valve can be prevented. At this time, the fixing pin insertion portion of the insertion hole of the valve body into which the linear solenoid valve is inserted is an opposing surface substantially perpendicular to the direction in which the fixing pin is inserted into the fixing hole. Even if the fixing hole is drilled with a drill, since the load with respect to the rotation angle of the drill blade does not change depending on the rotation position, a desired fixing hole can be drilled, and an insertion hole for attaching an electromagnetic valve to the valve body And the fixing hole of the fixing pin which fixes both can be provided correctly. Further, even when the fixing hole is drilled with a drill, the load does not change depending on the rotation angle position of the tooth of the drill, so that it is possible to prevent the drill from being folded or biting into the valve body.

  In the valve assembly of the invention of claim 3, since the fixed pin insertion portion formed in a part of the insertion hole of the valve body is a tunnel shape whose cross-sectional outer shape is substantially U-shaped, In addition to the effect of the first or second aspect, the contact area between the linear solenoid valve and the insertion hole can be maintained. Further, even when the fixing hole is drilled by a drill, for example, in a facing plane substantially perpendicular to the direction in which the fixing pin is inserted, an external force other than the length direction of the drill is not applied. Can be perforated.

  5. The valve assembly according to claim 4, wherein the fixing pin insertion portion formed in a part of the insertion hole of the valve body is in contact with the inner surface of the insertion hole with the outer circumference in the length direction of the fixing pin. Therefore, in addition to the effect described in any one of claims 1 to 3, for example, even if drilling is performed, other than the length direction of the drill The fixing hole can be accurately drilled in a straight line without receiving the external force.

  6. The valve assembly according to claim 5, wherein the fixing pin insertion portion side formed in a part of the insertion hole of the valve body has a feedback port on one side and the fixing hole of the fixing pin on the opposite side. In addition to the effects described in any one of claims 1 to 4, the linear solenoid valve or the electromagnetic valve is mounted when the fixing pin is inserted into the fixing hole. The valve body can be pressed toward the insertion hole side and the contact of the feedback port can be made dense, so that the hydraulic oil leaks from the feedback port and the adjustment pressure can be accurately controlled.

  In the valve assembly according to the invention of claim 6, the fixing pin insertion portion formed in a part of the insertion hole of the valve body is provided from the end portion only at a place where the insertion hole of the fixing pin is disposed. In addition to the effect of any one of claims 1 to 5, since the die hole is formed by die casting to a depth sufficient to dispose the fixing pin, It becomes easy and the processing time can be shortened.

  In the valve assembly according to the seventh aspect of the present invention, since the fixing pin to be inserted into the fixing hole is a single member, in addition to the effect according to any one of the first to sixth aspects, a plurality of fixing pins are inserted. It is possible to improve the workability by eliminating the need to use individual pieces. Further, when pressed by a fixing pin, the linear solenoid valve or the electromagnetic valve can be brought into close contact with the insertion hole.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the embodiment, the same reference numerals and the same reference numerals as those in the first embodiment are the same or corresponding functional parts in the figure, and therefore, redundant description is omitted here.

  FIG. 1 is a perspective view showing an overall configuration of a valve assembly according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view showing an overall configuration of a linear solenoid valve used in the valve assembly according to the first embodiment of the present invention. FIG. 3 is a view showing a manufacturing process of a cross section corresponding to the cutting line AA in FIG. 2 showing the arrangement state of the linear solenoid valve used in the valve assembly according to the first embodiment of the present invention, and FIG. It is sectional drawing which shows the arrangement | positioning relationship between the feedback port and fixed pin of a linear solenoid valve in the valve assembly concerning Embodiment 1 of invention.

  In FIG. 1, a valve body 10 manufactured by aluminum die casting has a plurality of linear solenoid valves 20A, 20B, 20C,... (Hereinafter, specific linear solenoid valves 20A, 20B, 20C,. When not, simply “20” is attached to form a base body that can be integrally attached. As shown in FIG. 2, the valve body 10 has a plurality of insertion holes 11A, 11B, 11C,... For inserting a plurality of linear solenoid valves 20 (hereinafter, specific linear solenoid valves 11A, 11B, 11C). ,... Are simply indicated as “11”. The insertion hole 11 is provided with ports that are connected to a plurality of ports on the valve side when the linear solenoid valve 20 is mounted, and is connected between these ports so that the formed oil passage can be opened and closed. Yes.

In the valve body 10, a fixing pin 17 which will be described later is prevented from coming off, and a lead wire is led to a terminal 52 as a connector of the linear solenoid valve 20, and a guide plate 12 to be held is fixed by a plurality of bolts 13.
In addition, the insertion hole 11 of the valve body 10 in the present embodiment is formed by diameter-expanding the lightening hole 15 formed by die casting in order to increase finishing accuracy.

  For example, as shown in FIG. 2, the linear solenoid valve 20 disposed in the hydraulic circuit of the automatic transmission operates based on an electric current, and an oil pressure corresponding to the electric current is disposed as an actuator of a friction engagement element (not shown). Is supplied to the hydraulic servo mechanism. The solenoid unit 40 is a magnetically driven portion, and the pressure regulating valve unit 80 constitutes a valve unit that is actuated by driving the solenoid unit 40.

The solenoid unit 40 supplies a current to the coil assembly 41, a plunger 42 disposed so as to be movable forward and backward with respect to the coil assembly 41, an outer yoke 43 disposed so as to surround the coil assembly 41, and the coil 44 of the coil assembly 41. It has a terminal 52 for feeding.
In addition, the coil assembly 41 is adjacent to the coil 44 on the inner side in the radial direction of the coil 44 formed by winding the winding around the bobbin 45, in a predetermined place of the coil 44 in the present embodiment. Is a second yoke cylindrical end portion 47 arranged extending from the vicinity of the front end (left end in the figure) to the rear (right side in the figure), a predetermined portion of the coil 44, in the present embodiment. It is formed as an annular end portion 46 as a first yoke disposed forward (leftward in the figure) from the vicinity of the front end, and a magnetoresistive portion disposed between the end portion 46 and the end portion 47. A cylindrical magnetic shield 48 is provided. The bobbin 45, the end portion 46, the end portion 47, and the magnetic shielding portion 48 are integrally assembled by welding, brazing, sintered joining, adhesion, or the like.

  The coil assembly 41 is formed in a substantially cylindrical shape except for the portion of the terminal 52, and is the same in the axial direction in the coil assembly 41 (inward in the radial direction of the end portion 46, the end portion 47, and the magnetic shielding portion 48). A hollow portion 49 having a diameter is formed, and a plunger 42 is fitted into the hollow portion 49 so as to be movable forward and backward and slidable. Therefore, the plunger 42 is held by the coil assembly 41 in a state of being fitted into the hollow portion 49. The outer yoke 43 is made of a cylindrical body with a bottom, includes a cylindrical portion and a bottom portion having a circular shape, and is integrally formed by plastic metal processing such as deep drawing or cold forging. A caulking portion is formed at the front end of the cylindrical portion, and after the coil assembly 41 is fitted into the outer yoke 43 and the pressure regulating valve portion 80 is set, the caulking portion and the flange portion formed at the rear end of the sleeve 60 are connected. The solenoid part 40 and the pressure regulating valve part 80 are integrally assembled by caulking.

  The plunger 42 has an outer peripheral surface having the same diameter in the axial direction and is longer than the coil 44 in the axial direction. In the plunger 42, a plunger abutting portion 91 formed at the rear end of the spool 90 of the pressure regulating valve portion 80 is brought into contact with the center of the front end surface (left end surface in the drawing), and the rear end surface (right end in the drawing in the drawing). The contact portion 50 formed to protrude from the bottom portion is brought into contact with the surface). As described above, the contact portion 50 is formed on the bottom portion, and the outer layer made of a nonmagnetic material is formed on the outer periphery of the contact portion 50, so that the plunger 42 is in contact with the outer yoke 43. And the contact portion 50 can be prevented from forming a magnetic path.

  The pressure regulating valve portion 80 is attached to the sleeve 60, a spool 90 fitted to the sleeve 60 so as to be movable forward and backward, and a front end of the sleeve 60, and an end plate for preventing the spool 90 from coming out of the sleeve 60. 61, a coil spring 62 is disposed between the end plate 61 and the front end of the spool 90, and serves as a biasing member that biases the spool 90 toward the solenoid 40 with a predetermined elastic pressure.

  The spool 90 is formed at the front end, and has a medium-diameter land 92 having a receiving portion for receiving the rear end of the coil spring 62, a small-diameter groove portion 93 formed adjacent to the rear of the land 92, and a groove portion 93. A large-diameter land 94 formed adjacent to the rear side, a small-diameter groove portion 95 formed adjacent to the rear side of the land 94, a large-diameter land 96 formed adjacent to the rear side of the groove portion 95, and a land A small-diameter groove portion 97 formed adjacent to the rear side of 96 and a plunger abutting portion 91 formed adjacent to the rear side of the groove portion 97 are provided.

  An annular groove is formed between the groove portion 97 and the plunger abutting portion 91, and an inner peripheral edge of a diaphragm 98 as an annular thin plate made of an elastic body is attached to the groove, and the outer peripheral edge of the diaphragm 98 is a flange portion. 51 and the end portion 46. The diaphragm 98 divides the space in the sleeve 60 and the hollow portion 49, and prevents iron powder or the like generated in the sleeve 60 from entering the hollow portion 49.

  The sleeve 60 is connected to an input port 64 to which a line pressure adjusted by a primary regulator valve (not shown) is supplied as an input pressure, a hydraulic servo, and an output port 65 for outputting the output pressure to the hydraulic servo, and is sealed. The feedback port 68 and the feedback port 69, the drain port 66 using the input pressure as the drain, the drain port 63 using the oil flowing through the gap between the sleeve 60 and the land 92 as the drain, and the gap between the sleeve 60 and the land 96. The drain port 67 has a drain port 67 that drains oil flowing through the valve, and the feedback port 68 and the feedback port 69 communicate with the output port 65 through a feedback oil passage formed between the valve body 10 and the sleeve 60. Output pressure is used as feedback pressure. Is supplied to generate a feedback force corresponding to the area difference of the lands 92 and 94, it urges the spool 90 to the rear at the feedback force.

  Therefore, the spool 90 receives the thrust generated by the plunger 42 when a current is supplied to the coil 44, the spring load and the feedback force of the coil spring 62, and the plunger contact portion 91 is in contact with the plunger 42. , Move forward and backward integrally with the plunger 42. In this embodiment, the plunger abutting portion 91 is brought into contact with the plunger 42. However, a shaft having a predetermined length is disposed between the plunger 42 and the spool 90. You can also That is, the solenoid unit 40 includes a coil 44 that directly and indirectly drives the spool 90 with electromagnetic force.

  Further, as shown in FIG. 3, the valve body 10 manufactured by die casting of aluminum has an insertion hole 11 into which a plurality of linear solenoid valves 20 are mounted. When the insertion hole 11 is manufactured by die casting, a hole 15 is formed. The light extraction hole 15 is formed to have a smaller diameter than the insertion hole 11, and the fixing pin insertion portion 16 of the insertion hole 11 is opposed substantially perpendicular to the direction in which the fixing pin 17 is inserted into the fixing hole 18. It is made into a surface and has a substantially U-shaped cross section that is hollowed out in a tunnel shape (a bowl shape). The fixing pin insertion portion 16 has a depth obtained by adding about 1 to 8 mm to the thickness of the fixing pin 17. The fixed pin insertion portion 16 has a shape in which an ellipse is halved in the length direction. In addition to a substantially U-shaped cross section that is thinned in a tunnel shape (a bowl shape), a long cylinder, a rectangular parallelepiped The shape can be a cube. In any case, the fixing pin insertion portion 16 of the insertion hole 11 of the valve body 10 manufactured by die casting is formed to be larger than the diameter of the lightening hole 15.

  After the valve body 10 is manufactured by die-casting, the diameter-expansion process is performed on the hole 15 to form the insertion hole 11. In the present embodiment, the insertion hole 11 is usually formed so that the finishing diameters of the arcuate portions of the lightening holes 15 are matched. The insertion hole 11 does not necessarily match the arcuate portion of the fillet hole 15, but if the diameter of the insertion hole 11 is matched with the arcuate portion of the fillet hole 15, a linear solenoid valve with respect to the insert hole 11. Since the surface in close contact with 20 becomes wider, a stable mounting state can be maintained.

In addition, after the valve body 10 is manufactured by die casting, the fixing pin insertion portion 16 of the lightening hole 15 has a fixing pin inserted on the fixing pin insertion portion 16 side of the substantially perpendicular facing surface having a substantially U-shaped cross section. A fixing hole 18 is formed in the direction in which 17 is inserted. The fixing hole 18 can be drilled by, for example, electric discharge machining other than the drill, but the effect of the embodiment of the present invention is particularly effective when drilling with a drill.
The fixed pin insertion portion 16 of the insertion hole 11 of the valve body 10 to which the linear solenoid valve 20 is attached has a substantially U-shaped cross section, that is, the inside of the insertion hole 11 of the valve body 10 having a tunnel shape. The fixing pins 17 are opposed surfaces that are substantially perpendicular to the direction in which the fixing pins 17 are inserted into the fixing holes 18. Further, after the fixing pin 17 is inserted into the fixing hole 18, in order to prevent the fixing pin 17 from being detached, the fixing pin 17 is prevented from being detached, and a lead wire is guided to the terminal 52 of the linear solenoid valve 20 and held therein. The plate 12 is fixed by a plurality of bolts 13.

The inside of the insertion hole 11 formed on the opposing surface substantially perpendicular to the direction in which the fixing pin 17 is inserted has a substantially U-shaped cross-section that is thinned in a tunnel shape. A depth obtained by adding about 1 to 8 mm to the thickness of the fixing pin 17 from a part of the insertion hole 11 is preferably formed.
When the opening of the fixing pin insertion portion 16 is viewed from the front, the fixing hole 18 of the fixing pin 17 is formed at a position separated from the wall surface of the fixing pin insertion portion 16 by 0.5 mm or more. On the other hand, when the fixing pin 17 is inserted into the fitting hole 70 of the sleeve 60 with the linear solenoid valve 20 mounted, the entire linear solenoid valve 20 is placed on the opposite side of the side where the fixing pin 17 is provided. The sleeve is pressed and pressed so that the sleeve 60 can come into close contact with the curved surface of the insertion hole 11.

Therefore, when the fixing pin 17 is attached to the sleeve 60 of the linear solenoid valve 20, positioning is performed so that the entire linear solenoid valve 20 or at least the solenoid portion 40 side moves to the opposite side of the fixing pin 17 of the insertion hole 11. Is done. And if the diameter of the insertion hole 11 is made to coincide with the arcuate portion of the cutout hole 15 and the surface of the insertion hole 11 in close contact with the linear solenoid valve 20 is widened, a stable mounting state can be maintained.
Further, at this time, in particular, when the feedback port 68 and the feedback port 69 are formed on the opposite surface of the fixing pin 17, the feedback amount returned from the feedback port 68 to the feedback port 69 can be accurately corrected without leaking. Thus, the sealing property can be improved. That is, when viewed from the feedback port 68 and the feedback port 69 side, the position of the fixing pin 17 is on the opposite side. With this configuration, the sealability between the feedback port 68 to the feedback port 69 and the insertion hole 11 can be improved.

  As described above, the valve assembly according to the present embodiment forms a plurality of drain ports 63, input ports 64, output ports 65, drain ports 66, drain ports 67, feedback ports 68, feedback ports 69, and other valve side ports. A sleeve 90 and a drain port 63, an input port 64, an output port 65, a drain port 66, a drain port 67, a feedback port 69, a feedback port 69, a spool 90 that opens and closes a valve side port, and a plunger 42 and a plunger that drive the spool 90 The linear solenoid valve 20 having a coil 44 for driving the motor 42 by electromagnetic force, and the insertion hole 11 for inserting the sleeve 60 of the linear solenoid valve 20. The valve body 10 provided with ports connected to the valve side ports such as the engine port 63, the input port 64, the output port 65, the drain port 66, the drain port 67, the feedback port 69, and the feedback port 68, and the insertion of the valve body 10 By inserting the linear solenoid valve 20 mounted in the hole 11 into a fixing hole 18 provided in the valve body 10, the linear solenoid valve 20 is provided with a fixing pin 17 for fixing both, and the insertion hole 11 of the valve body 10 into which the linear solenoid valve 20 is inserted. The inner side is a facing surface substantially perpendicular to the direction in which the fixing pin 17 is inserted into the fixing hole 18.

  Therefore, by simply inserting the linear solenoid valve 20 into the insertion hole 11 of the valve body 10 and inserting the fixing pin 17 into the fixing hole 18 provided in the valve body 10, it can be firmly fixed and the linear solenoid valve 20 can be detached. Can be prevented. At this time, the insertion hole 11 of the valve body 10 into which the linear solenoid valve 20 is inserted is an opposing surface substantially perpendicular to the direction in which the fixing pin 17 is inserted into the fixing hole 18, and is temporarily fixed with a drill. Even when the hole 18 is drilled, since the load on the drill teeth does not change depending on the rotation angle, the desired fixing hole 18 can be drilled, and the insertion hole 11 for mounting the linear solenoid valve 20 on the valve body 10 and both are fixed. Thus, the fixing hole 18 of the fixing pin 17 can be accurately provided. Further, even if the fixing hole 18 is drilled with a drill, the load with respect to the rotation angle of the drill blade does not change depending on the rotation angle of the drill, so the drill is broken or the drill bites into the valve body 10. Can be prevented.

By the way, in the embodiment of FIGS. 1 to 3, the linear solenoid valve 20 has been described. However, when the present invention is implemented, the linear solenoid valve 20 can be used as a general electromagnetic valve.
That is, the valve assembly of the present embodiment includes an electromagnetic valve having a sleeve 60 that forms a plurality of valve-side ports, a spool 90 that opens and closes the valve-side ports, and a coil 44 that drives the spool 90; A valve body 10 having an insertion hole 11 into which the sleeve 60 is inserted and having ports connected to a plurality of valve-side ports when the electromagnetic valve is mounted, and an electromagnetic valve mounted in the insertion hole 11 of the valve body 10 Is inserted into a fixing hole 18 provided in the valve body 10, and a fixing pin 17 is provided to fix the two together. The fixing pin 17 is fixed inside the insertion hole 11 of the valve body 10 into which the electromagnetic valve is inserted. It can be set as the structure made into the opposing surface substantially perpendicular | vertical with respect to the direction inserted in.

  Therefore, by simply inserting the electromagnetic valve into the insertion hole 11 of the valve body 10 and inserting the fixing pin 17 into the fixing hole 18 provided in the valve body 10, it can be firmly fixed and the separation of the electromagnetic valve can be prevented. At this time, the insertion hole 11 of the valve body 10 into which the electromagnetic valve is inserted has a facing surface substantially perpendicular to the direction in which the fixing pin 17 is inserted into the fixing hole 18. Since the load of the tooth of the drill does not change depending on the rotation angle, the desired fixing hole 18 can be drilled, the insertion hole 11 for attaching the electromagnetic valve to the valve body 10 and the fixing pin 17 for fixing both. The fixing hole 18 can be accurately provided. Further, even if the fixing hole 18 is drilled with a drill, the load with respect to the rotation angle of the drill blade does not change depending on the rotation angle of the drill, so the drill is broken or the drill bites into the valve body 10. Can be prevented.

  Further, since the insertion hole 11 of the valve body 10 to which the linear solenoid valve 20 or the electromagnetic valve of the valve assembly of the present embodiment is attached has a substantially U-shaped cross section, the linear solenoid valve 20 or the electromagnetic valve is The contact area with the insertion hole 11 can be maintained. Further, even when the fixing hole 18 is drilled by a drill, for example, in a facing plane substantially perpendicular to the direction in which the fixing pin 17 is inserted, an external force other than the length direction of the drill is not applied. Can be perforated.

  In addition, in the insertion hole 11 of the valve body 10 to which the linear solenoid valve 20 or the electromagnetic valve of the valve assembly of the present embodiment is attached, the fixing pin 17 does not contact the inner surface of the insertion hole 11 of the valve body 10. Because of the positional relationship, for example, even if a drill is drilled, the fixing hole 18 can be drilled accurately in a straight line without receiving external forces other than the length of the drill. .

  The insertion hole 11 of the valve body 10 to which the linear solenoid valve 20 or the electromagnetic valve of the valve assembly of the present embodiment is attached has a feedback port 68 and a feedback port 69 on one side of the both sides, and a fixing pin 17 on the opposite side. Therefore, when the fixing pin 17 is inserted into the fixing hole 18, it is elastically pressed so as to be pressed against the insertion hole 11 side of the valve body 10 to which the linear solenoid valve 20 or the electromagnetic valve is mounted. Thus, there is no leakage in the feedback amounts of the feedback port 68 and the feedback port 69, and the adjustment pressure can be accurately controlled.

  Further, the inner side of the insertion hole 11 of the valve body 10 to which the linear solenoid valve 20 or the electromagnetic valve of the valve assembly of the present embodiment is attached is fixed from the end only at the position where the insertion hole 11 of the fixing pin 17 is provided. Since the die 17 is molded to a depth sufficient to dispose the pin 17, the insertion hole 11 can be easily drilled and the processing time can be shortened.

Furthermore, the insertion hole 11 of the valve body 10 to which the linear solenoid valve 20 or the electromagnetic valve of the valve assembly of the present embodiment is attached has a feedback port 68 and a feedback port 69 on one side of the both sides, and a fixing pin on the opposite side. In order to make the effect of the arrangement position remarkable, the feedback port 68 and the feedback port 69 are arranged on the fixed pin insertion portion 16 side as shown in FIG. Is desirable.
That is, when the fixing pin 17 is inserted into the fixing hole 18, the linear solenoid valve 20 is pressed against the insertion hole 11 side of the valve body 10 to which the linear solenoid valve 20 is mounted. 61. Therefore, if the feedback port 68 and the feedback port 69 are disposed on the fixed pin insertion portion 16 side, the sealing performance can be improved, and the adjustment pressure can be accurately controlled.

  In addition, in the valve assembly of the present embodiment, since the fixing pin 17 inserted into the fixing hole 18 is a single member, it is not necessary to use a plurality of pins, and workability can be improved. . Further, when the fixing pin 18 is pressed, the linear solenoid valve 20 or the electromagnetic valve can be brought into close contact with one surface side of the insertion hole 11, and the sealing performance of the surface can be improved.

FIG. 1 is a perspective view showing an overall configuration of a valve assembly according to an embodiment of the present invention. FIG. 2 is a sectional view showing the entire configuration of the linear solenoid valve used in the valve assembly according to the embodiment of the present invention. FIG. 3 is a view showing a manufacturing process of a cross section of a portion corresponding to a cutting line AA in FIG. 2 showing an arrangement state of the linear solenoid valve used in the valve assembly according to the embodiment of the present invention. FIG. 4 is a cross-sectional view showing the positional relationship between the feedback port and the fixing pin of the linear solenoid valve in the valve assembly according to the embodiment of the present invention. FIG. 5 is an explanatory view showing a first method of making a hole for inserting a linear solenoid valve in a valve body manufactured by conventional die casting. FIG. 6 is an explanatory view showing a second method of making a hole for inserting a linear solenoid valve in a valve body manufactured by conventional die casting.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Valve body 11 Insertion hole 16 Fixing pin insertion part 17 Fixing pin 18 Fixing hole 20 Linear solenoid valve 42 Plunger 44 Coil 40 Solenoid part 60 Sleeve 69 Feedback port 68 Feedback port 90 Spool

Claims (7)

A solenoid valve having a sleeve formed with a plurality of valve side ports, a spool for opening and closing the valve side port, and a coil for driving the spool with electromagnetic force;
A valve body having an insertion hole into which the sleeve of the electromagnetic valve is inserted, and a port connected to the plurality of valve-side ports in a mounted state of the electromagnetic valve;
A fixing pin for fixing the electromagnetic valve mounted in the insertion hole of the valve body by inserting the electromagnetic valve into a fixing hole provided in the valve body;
A fixing pin insertion portion formed by forming an opposing surface substantially perpendicular to a direction in which the fixing pin is inserted into the fixing hole in a part of the insertion hole of the valve body to which the electromagnetic valve is mounted. A valve assembly featuring: A linear solenoid valve having a sleeve formed with a plurality of valve-side ports, a spool for opening and closing the valve-side port, a plunger for driving the spool, and a coil for driving the plunger with electromagnetic force;
A valve body having an insertion hole into which the sleeve of the linear solenoid valve is inserted, and a port connected to the plurality of valve-side ports in a mounted state of the linear solenoid valve;
The linear solenoid valve attached to the insertion hole of the valve body comprises a fixing pin that fixes both by inserting the linear solenoid valve into a fixing hole provided in the valve body,
A fixing pin insertion portion formed by forming an opposing surface substantially perpendicular to the direction in which the fixing pin is inserted into the fixing hole in a part of the insertion hole of the valve body to which the linear solenoid valve is mounted. A valve assembly characterized by that.   The fixing pin insertion portion formed in a part of the insertion hole of the valve body is formed in a tunnel shape whose cross-sectional outer shape is substantially U-shaped from the end portion of the insertion hole to a predetermined depth. The valve assembly according to claim 1 or 2, wherein: The fixing pin insertion portion formed in a part of the insertion hole of the valve body has a positional relationship in which the fixing pin does not contact the inner surface of the insertion hole of the valve body on which the valve body is mounted. The valve assembly according to any one of claims 1 to 3, wherein:   The fixed pin insertion part side formed in a part of the insertion hole of the valve body is arranged with a feedback port on one side of both sides and the fixed pin on the opposite side as viewed from the vertical cross section in the length direction. The valve assembly according to any one of claims 1 to 4, wherein the valve assembly is provided.   The fixing pin insertion portion formed in a part of the insertion hole of the valve body has a depth sufficient to dispose the fixing pin from an end only at a portion where the insertion hole of the fixing pin is disposed. The valve assembly according to any one of claims 1 to 5, wherein the valve assembly is molded by die casting.   The valve assembly according to any one of claims 1 to 6, wherein a single fixing pin is inserted into the fixing hole.

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