JP5949187B2 - Valve body of hydraulic control device - Google Patents

Description

  The present invention relates to a valve body of a hydraulic control device that generates hydraulic pressure for operating a transmission.

  Conventionally, as a valve body of this type of hydraulic control device, a lower valve body having an oil passage including a valve insertion hole and a plurality of bolt insertion holes penetrating in a thickness direction at a position avoiding the oil passage, and a valve insertion hole are provided. An upper valve having an oil passage including a plurality of bolt holes extending in a thickness direction so as to correspond to a bolt insertion hole of a lower valve body at a position avoiding the oil passage, and a screw hole formed at a position avoiding the oil passage Numerous through-bolts that are inserted into the body, bolt insertion holes and screwed into the bolt holes to fasten and integrate the lower valve body and the upper valve body, and solenoid valves that are inserted into the valve insertion holes A fixing bolt that is screwed into a screw hole so as to be fixed to the upper valve body is known (for example, see Patent Document 1). In this valve body, the screw hole and the bolt hole of the upper valve body are formed coaxially, thereby reducing an extra space due to a shift between the two and simplifying the oil passage arrangement.

JP-A-5-231524

  By the way, if it arrange | positions so that the bolt hole for fastening several valve bodies and the valve insertion hole may be shifted so that it may not overlap as mentioned above, there exists a possibility that a valve body may enlarge. On the other hand, if the bolt hole and valve insertion hole overlap, the valve insertion hole is distorted by screwing the bolt into the bolt hole and tightening, and the solenoid valve is smoothly inserted into the valve insertion hole. In some cases, the solenoid valve cannot be assembled. Such a problem can be resolved by increasing the gap in the thickness direction of the valve body between the bolt hole and the valve insertion hole that overlap each other. Will get worse.

  Therefore, the main object of the present invention is to suppress the assembly failure of the solenoid valve without enlarging the valve body of the hydraulic control device.

  The valve body of the hydraulic control apparatus according to the present invention adopts the following means in order to achieve the above main object.

The valve body of the hydraulic control device according to the present invention is:
In the valve body of the hydraulic control device that generates the hydraulic pressure for operating the transmission,
A first body having first and second valve insertion holes arranged next to each other;
A second body having an oil passage communicating with at least one pressure regulating port of the solenoid valve inserted into the first and second valve insertion holes;
A bolt that is screwed into a bolt hole formed in the first body and fastens the first body and the second body;
The central axis of the first valve insertion hole is located closer to the mating surface side of the first body and the second body than the central axis of the second valve insertion hole,
The first valve insertion hole includes a small-diameter portion that overlaps the pressure regulating port of the solenoid valve, and a large-diameter portion that at least partially overlaps the bolt hole and has an inner diameter larger than the small-diameter portion. It is characterized by that.

  The valve body of the hydraulic control device includes at least one of a first body having first and second valve insertion holes arranged next to each other and a solenoid valve inserted into the first and second valve insertion holes. A second body having an oil passage communicating with the pressure adjusting port; and a bolt screwed into a bolt hole formed in the first body to fasten the first body and the second body. The central axis of the first valve insertion hole is located closer to the mating surface side of the first body and the second body than the central axis of the second valve insertion hole, and the first valve insertion hole is used for regulating the pressure of the solenoid valve. A small-diameter portion that overlaps the port, and a large-diameter portion that at least partially overlaps the bolt hole and has an inner diameter larger than the small-diameter portion. That is, when the first valve insertion hole and the bolt hole located on the mating surface side with respect to the second valve insertion hole at least partially overlap, the second valve insertion hole and the bolt hole at least partially overlap. Compared to the case of wrapping, the first valve insertion hole is close to the fastening portion between the bolt and the bolt hole, so that the distortion caused by the tightening of the bolt is more likely to occur in the first valve insertion hole. Accordingly, if the inner diameter of a part of the first valve insertion hole that at least partially overlaps the bolt hole is expanded to a large diameter portion, even if the large diameter portion is distorted due to tightening of the bolt, It can be prevented that the solenoid valve cannot be smoothly inserted into the first valve insertion hole, that is, the large diameter portion, or cannot be inserted. As a result, in order to increase the distance between the first valve insertion hole and the bolt hole, the pressure regulating port of the solenoid valve can be obtained without increasing the size of the first body and thus the entire valve body in the thickness direction or the axial direction of the first valve insertion hole. As a result, the assembly performance of the solenoid valve can be ensured satisfactorily while ensuring the sealing performance in the small-diameter portion that overlaps.

  The first end face surrounding the valve inlet of the first valve insertion hole may be included in the same plane as the second end face adjacent to the first end face and surrounding the second valve insertion hole. That is, when the first end surface surrounding the valve inlet of the first valve insertion hole and the second end surface adjacent to the first end surface and surrounding the second valve insertion hole are included in the same plane, the first valve insertion hole It is not easy to shift the position of the first valve insertion hole in the axial direction while avoiding interference between the solenoid valve inserted into the second end face and other portions such as the second end face. Therefore, forming a large diameter portion that at least partially overlaps the bolt hole in the first valve insertion hole is effective in suppressing poor assembly of the solenoid valve without increasing the size of the valve body in such a configuration. Very useful.

  Furthermore, the first body may have a third valve insertion hole having the same diameter as the small diameter portion of the first valve insertion hole and closed on the opposite side of the valve inlet. That is, if a processing tool having a small diameter cutting portion and a large diameter cutting portion is used, the first valve insertion hole having the small diameter portion and the large diameter portion can be easily formed without increasing the number of steps. If the first body includes a third valve insertion hole that is the same diameter as the small diameter portion of the first valve insertion hole and is non-penetrating, the third valve insertion hole can be easily formed using the processing tool. Accordingly, an increase in the manufacturing cost of the valve body can be suppressed.

  The first body may have an oil passage ridge formed adjacent to the closed end of the third valve insertion hole and adjacent to the axial direction of the third valve insertion hole. Good. That is, when the third valve insertion hole is a non-through hole, it is not necessary to secure a space for projecting the processing tool in the vicinity of the closed end. An oil passage can be formed on the inner side, thereby suppressing an increase in size of the valve body.

It is a schematic block diagram of the motor vehicle 10 as a vehicle carrying the hydraulic control apparatus 30 containing the valve body 300 by this invention. 2 is a schematic configuration diagram showing a hydraulic control device 30. FIG. FIG. 4 is a schematic diagram showing the arrangement state of a solenoid valve with respect to the valve body 300. FIG. 3 is a plan view showing a first body 301 constituting the valve body 300. FIG. 3 is an enlarged cross-sectional view showing a main part of a valve body 300. FIG. 3 is an enlarged cross-sectional view showing a main part of a valve body 300.

  Next, the form for implementing this invention is demonstrated using an Example.

  FIG. 1 is a schematic configuration diagram of an automobile 10 as a vehicle equipped with a hydraulic control device 30 including a valve body 300 according to the present invention. An automobile 10 shown in the figure includes an engine 12 as a prime mover that is an internal combustion engine that outputs power by an explosion combustion of a mixture of hydrocarbon fuel such as gasoline and light oil and air, and an engine electronic for controlling the engine 12. A control unit (hereinafter referred to as “engine ECU”) 14, a brake electronic control unit (hereinafter referred to as “brake ECU”) 16 for controlling an electronically controlled hydraulic brake unit (not shown) 16, and a crankshaft of the engine 12 are connected. A power transmission device 20 that transmits power from the engine 12 to the left and right drive wheels DW, a shift electronic control unit (hereinafter referred to as “transmission ECU”) 21 that controls the power transmission device 20, and the like are included.

  The engine ECU 14 is configured as a microcomputer centering on a CPU (not shown). The engine ECU 14 detects the depression amount of the accelerator pedal 91, an accelerator opening degree Acc from the accelerator pedal position sensor 92, a vehicle speed V from the vehicle speed sensor 99, signals from various sensors such as a crankshaft position sensor (not shown), a brake ECU 16 Based on signals from the shift ECU 21, etc., an electronically controlled throttle valve, fuel injection valve, spark plug, etc., not shown, are all controlled. The brake ECU 16 is also configured as a microcomputer centering on a CPU (not shown). The brake ECU 16 receives the master cylinder pressure detected by the master cylinder pressure sensor 94 when the brake pedal 93 is depressed, the vehicle speed V from the vehicle speed sensor 99, signals from various sensors (not shown), the engine ECU 14 and the transmission ECU 21. Based on a signal or the like, a brake actuator (hydraulic actuator) (not shown) or the like is controlled.

  The power transmission device 20 includes a transmission case 22, a torque converter (fluid transmission device) 23, an oil pump 24, for example, a transmission 25 that is a stepped automatic transmission, a gear mechanism 26, and a differential mechanism (differential gear) 27. And a hydraulic control device 30 that regulates hydraulic oil from the oil pump 24 to generate hydraulic pressure. The torque converter 23 includes an input-side pump impeller connected to the crankshaft of the engine 12, an output-side turbine runner connected to the input shaft (input member) of the transmission 25, a stator, a lockup clutch, a damper mechanism, and the like. (Both not shown). However, instead of the torque converter 23, a fluid coupling that does not have a stator may be employed. The oil pump 24 is configured as a gear pump including a pump assembly including a pump body and a pump cover, and an external gear connected to the pump impeller a of the torque converter 23 via a hub, and is illustrated by power from the engine 12. The hydraulic oil (ATF) stored in the oil pan not to be sucked is sucked and fed to the hydraulic control device 30.

  The transmission 25 is capable of transmitting the power transmitted to the input shaft to the output shaft while changing the gear stage to a plurality of stages, and includes a plurality of planetary gear mechanisms and a power transmission path from the input shaft to the output shaft. Includes multiple clutches, brakes, one-way clutches, etc. to change. The output shaft of the transmission 25 is connected to the drive wheels DW via the gear mechanism 26 and the differential mechanism 27. The plurality of clutches and brakes are engaged or released by the hydraulic pressure from the hydraulic control device 30. The transmission 25 may be configured as a belt type or other type of continuously variable transmission.

  The transmission ECU 21 is also configured as a microcomputer centered on a CPU (not shown). The shift ECU 21 receives the accelerator opening Acc from the accelerator pedal position sensor 92, the vehicle speed V from the vehicle speed sensor 99, the shift range SR from the shift range sensor 96 that detects the operation position of the shift lever 95, various sensors (not shown), and the like. Based on the signals, signals from the engine ECU 14 and the brake ECU 16, etc., the torque converter 23 and the transmission 25, that is, the hydraulic control device 30 are controlled.

  The hydraulic control device 30 adjusts hydraulic oil from the oil pump 24 to generate hydraulic pressure for operating the torque converter 23 and the transmission 25, and supplies hydraulic oil as a lubricating cooling medium to lubricated portions such as various bearings. To supply. 2 and 3, the hydraulic control device 30 includes a valve body 300 having a plurality of oil passages, a manual valve, a plurality of regulator valves (not shown) configured by a valve body 300 and spools and springs (not shown). And relay valve, linear solenoid valve SLT attached to valve body 300, lockup solenoid valve (linear solenoid valve) SLU, first to fifth linear solenoid valves SL1, SL2, SL3, SL4, SL5, respectively, output signal pressure A plurality of solenoid valves such as a plurality of on / off solenoid valves S1, S2, etc., an electromagnetic pump EMOP, and the like are provided. In the embodiment, as shown in FIG. 2, the hydraulic control device 30 is arranged vertically so that the arrangement direction of the plurality of solenoid valves is substantially parallel to the vertical direction.

  As shown in FIG. 2, the valve body 300 of the embodiment includes a first body 301 having a plurality of oil passages 301 a (see FIG. 5), a plurality of oil passages 302 a (see FIG. 5), and the first body 301. And a third body 303 having a plurality of oil passages (not shown) and being superimposed on the second body 302. The first body 301 and the second body 302 are opposed to each other via a separate plate 31 having a plurality of openings for communicating the oil passages formed in both, and the second body 302 and the third body 303 are both The oil passages are opposed to each other via a separate plate 32 having a plurality of openings for communicating the oil passages. And the 1st-3rd bodies 301-303 are fastened via the some volt | bolt 33, and comprise the integral valve body 300. As shown in FIG. A plurality of bolts 33 are formed in the first body 301 and the third body 303 and screwed into bolt holes in which female threads are cut, so that the first to third bodies 301 to 303 and the separate plates 31 and 32 are engaged. Are formed with a plurality of bolt insertion holes through which the bolts 33 are inserted so as to correspond to the bolt holes.

  As shown in FIGS. 2 to 4, the first body 301 has a plurality of linear solenoid valves SLT, lock-up solenoid valves SLU, first to fifth linear solenoid valves SL1 to SL5, and electromagnetic pumps EMOP inserted and fixed. A valve insertion portion 310 is included. The valve insertion portion 310 is raised so as to be separated from the mating surface of the first body 301 and the second body 302, that is, the separate plate 32, and has a plurality of valve insertion holes 311 to 318. In the embodiment, the valve insertion holes 311 to 315 and 317 corresponding to the lock-up solenoid valve SLU and the first to fifth linear solenoid valves SL1 to SL5 are through holes penetrating the valve insertion portion 310, and the linear solenoid valve SLT. The valve insertion holes 316 and 318 corresponding to the electromagnetic pump EMOP are non-through holes with one end closed. In the embodiment, the valve insertion holes 311 to 318 are fitted with almost no gaps including the corresponding linear solenoid valves SL1 to SL5, SLU and SLT, and at least the pressure control ports such as the input port, output port and feedback port of the electromagnetic pump EMOP. Accordingly, each linear solenoid valve is fixed to the first body 301 and a seal member that suppresses leakage of hydraulic oil from each pressure regulating port is formed with high accuracy.

  As can be seen from FIG. 2, the valve insertion holes 311 to 318 are arranged so as to be appropriately shifted in the thickness direction of the first body 301. For example, the central shaft 311c of the valve insertion hole (first valve insertion hole) 311 corresponding to the lock-up solenoid valve SLU has a valve insertion hole (second valve) corresponding to the first linear solenoid valve SL1, as shown in FIG. It is located on the mating surface of the first body 301 and the second body 302 relative to the central axis 312 c of the insertion hole 312, that is, on the separate plate 31 side. Further, as shown in FIG. 2, the central shaft 316c of the valve insertion hole 316 (third valve insertion hole) corresponding to the linear solenoid valve SLT has a valve insertion hole corresponding to the fourth linear solenoid valve SL4 located on both sides. The center axis 315c of 315 and the center axis 317c of the valve insertion hole 317 corresponding to the fifth linear solenoid valve SL5 are located on the mating surface of the first body 301 and the second body 302, that is, on the separate plate 31 side.

  Further, as shown in FIG. 3, the lock-up solenoid valve SLU, the second and third linear solenoid valves SL2 and SL3, the linear solenoid valve SLT and the electromagnetic pump EMOP have an electromagnetic part including a coil or the like outside the valve insertion part 310. 3 are inserted into the corresponding valve insertion holes 311, 313, 314, 316, 318 from the right side in FIG. On the other hand, the first, fourth, and fifth linear solenoid valves SL1, SL4, SL5 correspond respectively from the left side in FIG. 3 so that the electromagnetic part including the coil or the like is located outside the valve insertion part 310. It is inserted into the valve insertion holes 312, 315 and 317.

  As described above, in the embodiment, the plurality of valve insertion holes 311 to 318 are appropriately shifted in the thickness direction of the first body 301, and the linear solenoid valve SLT, the lockup solenoid valve SLU, and the first to fifth linears. The insertion directions of the solenoid valves SL1 to SL5 and the electromagnetic pump EMOP are appropriately changed. Thereby, it becomes possible to integrate the plurality of linear solenoid valves SL1 to SL5, SLU and SLT and the electromagnetic pump EMOP to make the valve body 300 and thus the hydraulic control device 30 more compact.

  In the embodiment, the end surface (the right end surface in FIG. 4) of the valve insertion portion 310 on the side into which the lock-up solenoid valve SLU and the second and third linear solenoid valves SL2 and SL3 are inserted are the valve insertion ports 311 and 313. , 314 is a flat surface orthogonal to the axial direction. Accordingly, the first end surface 310a surrounding the valve inlet 311i (see FIG. 5) of the valve insertion hole 311 is included in the same plane as the second end surface 310b surrounding the valve insertion hole 312 and adjacent to the first end surface 310a. It will be. A positioning member such as a pin is inserted between each of the linear solenoid valves SL1 to SL5, SLU and SLT, and the electromagnetic pump EMOP, and the end face of the corresponding valve insertion portion 310. Valves SL <b> 1 to SL <b> 5, SLU and SLT and electromagnetic pump EMOP are positioned in the axial direction with respect to first body 301.

  Further, the first body 301 is formed with an oil passage ridge 319 adjacent to the closed end of the valve insertion hole 316 corresponding to the linear solenoid valve SLT so as to be adjacent to the axial direction of the valve insertion hole 316. An oil passage (not shown) is formed inside the oil passage ridge 319. As described above, the central shafts 315c and 317c of the valve insertion holes 315 and 317 located on both sides of the valve insertion hole 316 corresponding to the linear solenoid valve SLT are more in the first body 301 than the central shaft 316c of the valve insertion hole 316. And the second body 302 are separated from the mating surface, that is, the separate plate 31. Therefore, the electromagnetic parts and the like of the fourth and fifth linear solenoid valves SL4 and SL5 inserted from the left side in FIG. 4 into the valve insertion holes 315 and 317 do not interfere with the oil path ridges 319.

  Here, the first body 301 constituting the valve body 300 has a plurality of bolt holes into which bolts 33 for fastening and integrating the first to third bodies 301 to 303 are screwed as described above. Of the plurality of bolt holes, the bolt hole 301b shown in FIGS. 4 and 5 is formed in the axial direction of the valve insertion hole 311 of the valve insertion portion 310 in order to avoid interference with the plurality of oil passages 301a. It is formed so as to overlap with the valve insertion port 311. In other words, in the embodiment, as shown in FIG. 5, the bolt hole 301 b extends from the surface on the separate plate 31 side of the first body 301 to the inside (separate plate 31 side) of the rising portion (R portion) of the valve insertion portion 310. It is drilled so as not to penetrate the valve insertion portion 310 and partially overlaps one end of the valve insertion hole 311 (the right end in FIGS. 4 and 5).

  In this way, when the valve insertion hole 311 and the bolt hole 301b located on the separate plate 31 (mating surface) side of the valve insertion hole 312 partially overlap, the valve insertion hole 312 and the bolt hole are at least partially. Since the valve insertion hole 311 is closer to the fastening portion between the bolt 33 and the bolt hole 301b than in the case of overlapping, the distortion due to the tightening of the bolt 33 is more likely to occur in the valve insertion hole 311. . If distortion due to tightening of the bolt 33 occurs in the valve insertion hole 311, the lockup solenoid valve SLU cannot be smoothly inserted into the valve insertion hole 311, and in some cases, the lockup solenoid valve SLU cannot be assembled. There is also a risk of becoming. In the embodiment, the tip of the first linear solenoid valve SL1 protrudes from the opening of the valve insertion hole 312 on the second end surface 310b side adjacent to the first end surface 310a surrounding the valve inlet 311i of the valve insertion hole 311. Accordingly, while avoiding interference between the lock-up solenoid valve SLU (electromagnetic part or the like) inserted into the valve insertion hole 311 and the tip of the second end surface 310b or the first linear solenoid valve SL1, the valve insertion hole 311, that is, the first end surface 310a. It is not easy to shift the position in the axial direction and to the left in FIG.

  Based on these, in the hydraulic control apparatus 30 of the embodiment, the valve insertion hole 311 is positioned on the opposite side of the valve inlet 311i (first end surface 310a) as shown in FIG. A small-diameter portion 311a that overlaps with the pressure adjusting ports such as the input port In, the output port Out, and the feedback port Fb, and a large-diameter portion 311b that partially overlaps the bolt hole 301b and has an inner diameter larger than that of the small-diameter portion 311a. Formed to include. That is, in the embodiment, the bolt hole 301b partially overlaps the outer end portion (near the chamfered portion) of the large diameter portion 311b.

  The amount of expansion of the large diameter portion 311b, that is, the difference in inner diameter between the small diameter portion 311a and the large diameter portion 311b depends on the amount of deformation of the first body 301 (valve insertion portion 310) by tightening the bolt 33 with respect to the bolt hole 301b. It is determined as small as possible within a range in which the amount of deformation can be absorbed. Further, the length of the large-diameter portion 311b in the axial direction of the valve insertion hole 311 is, as shown in FIG. It is determined so that the pressure port overlaps with the small diameter portion 311a, in other words, the large diameter portion 311b does not overlap with the pressure adjusting ports such as the input port In, the output port Out, and the feedback port Fb. Thereby, by forming the small diameter portion 311a with high accuracy, it is possible to omit the arrangement of the seal member with respect to the input port In, the output port Out, and the feedback port Fb. On the other hand, as shown in FIG. 5, there is no practical problem that the large-diameter portion 311b and the drain port Ex, which is a port that does not require a seal such as a pressure regulating port, overlap. The pressure adjusting port means a port of a solenoid valve that requires sealing, and is not limited to the one exemplified here. The pressure adjusting ports such as the input port In and the output port Out communicate with an oil passage 301a indicated by a broken line in FIG. 5, and the oil passage 301a communicating with the pressure adjusting port has an opening formed in the separate plate 31. And communicates with an oil passage 302a (see a broken line in FIG. 5) formed in the second body 302. Further, the bolt hole 301 b of the first body 301 communicates with a bolt insertion hole 302 b formed in the second body 302 through an opening formed in the separate plate 31.

  The valve insertion hole 311 having the small-diameter portion 311a and the large-diameter portion 311b as described above uses the machining tool 100 having the small-diameter cutting portion 100a and the large-diameter cutting portion 100b as shown by a two-dot chain line in FIG. Thus, it can be easily formed without increasing the number of steps. In the embodiment, the non-through valve insertion hole 316 corresponding to the linear solenoid valve SLT is formed to have the same diameter as the small diameter portion 311 a of the valve insertion hole 311. Accordingly, by appropriately setting the axial length of the small diameter cutting portion 100a of the processing tool 100, the valve insertion hole 316 can be easily formed using the processing tool 100 as shown in FIG. An increase in the manufacturing cost of the valve body 300 can be suppressed. When forming the large diameter portion 311b of the valve insertion hole 311, the machining tool 100 (small diameter cutting portion) is opened from the opening opposite to the valve inlet 311i of the valve insertion hole 311 which is a through hole (left opening in FIG. 5). Since it is necessary to project the tip of 100a), a tool escape portion is formed in the vicinity of the opening of the valve insertion hole 311 opposite to the valve inlet 311i so as to avoid interference with the processing tool 100. In forming the valve insertion holes 311, 316, a pilot hole is formed using a processing tool (not shown) having an outer diameter smaller than the inner diameter of the small diameter portion 311a, and then processing using the processing tool 100 as described above is performed. May be performed.

  As described above, the valve body 300 of the hydraulic control device 30 includes the first body 301 having the valve insertion holes 311 and 312 arranged adjacent to each other and the lockup solenoid valve SLU inserted into the valve insertion hole 311. The first body 301 and the second body 302 are screwed into a second body 302 having an oil passage 302a communicating with a pressure regulating port such as the input port In and the output port Out, and a bolt hole 301b formed in the first body 301. And a bolt 33 for fastening together. The central axis 311c of the valve insertion hole 311 is positioned closer to the mating surface of the first body 301 and the second body 302 than the central axis 312c of the valve insertion hole 312, that is, the separate plate 31 side. A small-diameter portion 311a that overlaps a pressure adjusting port such as the input port In of the lockup solenoid valve SLU, and a large-diameter portion 311b that at least partially overlaps the bolt hole 301b and has an inner diameter larger than that of the small-diameter portion 311a. .

  In this way, if the inner diameter of a part of the valve insertion hole 311 that at least partially overlaps the bolt hole 301b is expanded to the large diameter part 311b, the large diameter part 311b is distorted due to the tightening of the bolt 33. Even if it occurs, it can be prevented that the lockup solenoid valve SLU cannot be inserted smoothly into the valve insertion hole 311, that is, the large diameter portion 311 b, or cannot be inserted. As a result, in order to increase the distance between the valve insertion hole 311 and the bolt hole 301b, the lockup solenoid valve SLU is not increased without increasing the size of the first body 301 and thus the entire valve body 300 in the thickness direction or the axial direction of the valve insertion hole 311. As a result, it is possible to satisfactorily secure the assembling property of the lock-up solenoid valve SLU while ensuring good sealing performance in the small diameter portion 311a that overlaps the input port In and the like.

  Further, in the hydraulic control device 30, the first end surface 310a surrounding the valve inlet 311i of the valve insertion hole 311 and the second end surface 310b adjacent to the first end surface 310a and surrounding the valve insertion hole 312 are in the same plane. The position of the valve insertion hole 311, that is, the first end surface 310 a is included in the axial direction while avoiding interference between the lockup solenoid valve SLU included in the valve insertion hole 311 and the tip of the second end surface 310 b or the first linear solenoid valve SL 1. It is not easy to shift. Therefore, in the hydraulic control device 30 configured as described above, the formation of the large diameter portion 311b in the valve insertion hole 311 does not increase the size of the valve body 300, and causes an improper assembly of the lockup solenoid valve SLU. It is extremely useful for suppression.

  Furthermore, if the processing tool 100 having the small diameter cutting portion 100a and the large diameter cutting portion 100b is used, the valve insertion hole 311 including the small diameter portion 311a and the large diameter portion 311b can be easily formed without increasing the number of steps. Can do. Further, the non-through valve insertion hole 316 that has the same diameter as the small diameter portion 311 a of the valve insertion hole 311 and is closed on the opposite side of the valve inlet 316 i can be easily formed using the processing tool 100. Therefore, in the hydraulic control device 30, it is possible to suppress an increase in manufacturing cost of the valve body 300. The valve insertion hole 316 is a non-through hole, and it becomes unnecessary to secure a space for projecting the processing tool 100 in the vicinity of the closed end. It is possible to form an oil passage on the valve body, thereby suppressing an increase in size of the valve body 300.

  The solenoid valve inserted into the valve insertion hole 311 as the first valve insertion hole, the valve insertion hole 312 as the second valve insertion hole, and the valve insertion hole 316 as the third valve insertion hole is the lockup solenoid valve SLU. The first linear solenoid valve SL1 is not limited to the linear solenoid valve SLT, and any solenoid valve may be used. Further, the large diameter portion 311b of the valve insertion hole 311 may overlap the entire bolt hole 301b.

  Here, the correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problems will be described. That is, in the above-described embodiment, the valve body 300 of the hydraulic control device 30 that generates the hydraulic pressure for operating the transmission 25 and the like corresponds to the “valve body”, and the central shaft 311c is the first body 301 rather than the central shaft 312c. The first body 301 having valve insertion holes 311 and 312 arranged adjacent to each other so as to be positioned on the mating surface side of the second body 302 corresponds to the “first body” and is inserted into at least the valve insertion hole 311. The second body 302 having an oil passage 302a that communicates with a pressure regulating port such as the input port In of the lockup solenoid valve SLU is equivalent to a “second body” and is screwed into a bolt hole 301b formed in the first body 301. The bolt 33 that joins and fastens the first body 301 and the second body 302 corresponds to a “bolt” and is locked up. The small diameter portion 311a that overlaps the pressure regulating port of the solenoid valve SLU corresponds to a “small diameter portion”, and the large diameter portion 311b that overlaps at least partially with the bolt hole 301b and has an inner diameter larger than that of the small diameter portion 311a. The first end surface 310a corresponding to the “large diameter portion” and surrounding the valve inlet 311i of the valve insertion hole 311 corresponds to the “first end surface”, is adjacent to the first end surface 310a and surrounds the valve insertion hole 312. Corresponds to the “second end face”, the valve insertion hole 316 having the same diameter as the small diameter portion 311a of the valve insertion hole 311 and closed on the opposite side of the valve inlet 316i corresponds to the “third valve insertion hole”. The oil passage ridge 319 formed close to the closed end of the valve insertion hole 316 corresponds to the “oil passage bulge”.

  However, the correspondence between the main elements of the embodiment and the main elements of the invention described in the column of means for solving the problem is the invention described in the column of means for solving the problem by the embodiment. Therefore, the elements of the invention described in the column of means for solving the problems are not limited. In other words, the examples are merely specific examples of the invention described in the column of means for solving the problem, and the interpretation of the invention described in the column of means for solving the problem is It should be done based on the description.

  As mentioned above, although the embodiment of the present invention has been described using examples, the present invention is not limited to the above-described examples, and various modifications can be made without departing from the scope of the present invention. Needless to say.

  The present invention can be used in the manufacturing industry of hydraulic control devices including a valve body.

  10 automobiles, 12 engines, 14 electronic control units for engines (engine ECUs), 16 electronic control units for brakes (brake ECUs), 20 power transmission devices, 21 electronic control units for transmissions (transmission ECUs), 22 transmission cases, 23 torques Converter, 24 Oil pump, 25 Transmission, 26 Gear mechanism, 27 Differential mechanism, 30 Hydraulic control device, 31, 32 Separate plate, 33 bolt, 91 Accel pedal, 92 Accel pedal position sensor, 93 Brake pedal, 94 Master cylinder Pressure sensor, 95 shift lever, 96 shift range sensor, 99 vehicle speed sensor, 100 machining tool, 100a small diameter cutting part, 100b large diameter cutting part, 300 valve body, 301 first body, 301a, 302 Oil passage, 301b bolt hole, 302 second body, 302b bolt insertion hole, 303 third body, 310 valve insertion portion, 310a first end face, 310b second end face, 311, 312, 313, 314, 315, 316, 317 , 318 Valve insertion hole, 311a Small diameter part, 311b Large diameter part, 311c, 312c, 315c, 316c, 317c Central axis, 311i, 316i Valve inlet, 319 Oil path raised part, S1, S2 On / off solenoid valve, SL1 1st Linear solenoid valve, SL2 second linear solenoid valve, SL3 third linear solenoid valve, SL4 fourth linear solenoid valve, SL5 fifth linear solenoid valve, SLU lock-up solenoid valve, SLT linear solenoid valve.

Claims (4)

In the valve body of the hydraulic control device that generates the hydraulic pressure for operating the transmission,
A first body having first and second valve insertion holes arranged next to each other;
A second body having an oil passage communicating with at least one pressure regulating port of the solenoid valve inserted into the first and second valve insertion holes;
A bolt that is screwed into a bolt hole formed in the first body and fastens the first body and the second body;
The central axis of the first valve insertion hole is located closer to the mating surface side of the first body and the second body than the central axis of the second valve insertion hole,
The first valve insertion hole includes a small-diameter portion that overlaps the pressure regulating port of the solenoid valve, and a large-diameter portion that at least partially overlaps the bolt hole and has an inner diameter larger than the small-diameter portion. A valve body of a hydraulic control device. In the valve body of the hydraulic control device according to claim 1,
A hydraulic control device characterized in that a first end surface surrounding the valve inlet of the first valve insertion hole is included in the same plane as the second end surface adjacent to the first end surface and surrounding the second valve insertion hole. Valve body. In the valve body of the hydraulic control device according to claim 1 or 2,
The valve body of a hydraulic control device, wherein the first body has a third valve insertion hole that has the same diameter as the small diameter portion of the first valve insertion hole and is closed on the opposite side of the valve inlet. In the valve body of the hydraulic control device according to claim 3,
The first body includes an oil passage ridge formed adjacent to the closed end of the third valve insertion hole and adjacent to the axial direction of the third valve insertion hole. The valve body of the device.

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