JPS59501989A - hydraulic torque device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to a hydraulic motor. More specifically, the present invention For installation in heavy machinery requiring dual-purpose motors or mechanical braking systems. related to water pressure motors.

Commonly used hydraulic motors are internal gears or jets consisting of inner and outer members. It consists of a rotor set. The inner and outer parts of the gerotor set are , having radially protruding teeth that interlock with each other to form expansion and contraction chambers. ing. The expansion and contraction chambers utilize fluid pressure to cause rotation of the shaft. and provide a means for circulating fluid through the gear set. On the other hand, the pump In this case, rotation of the shaft is used to create fluid pressure.

In this way, such a gear set can be used both as a hydraulic motor and as a pump. Ru.

For regular gear or gerotor style motors, the central inner gear member Eccentric circular motion within a housing shaped to make reciprocating contact with a member. as described above, thereby forming an expansion and contraction chamber.

The eccentric rotational movement of the inner member is centered through a joint called a “Dosoghorn joint.” is transmitted to the rotating drive shaft, from which mechanical motion is extracted.

Such a device is disclosed, for example, in U.S. Pat. No. 3,549,284. Tea 2 Ru. A dog bone joint connects a mechanical drive shaft with a central rotation about a fixed axis. This is used when rolling motion is required.

Tongbone fittings create central rotational motion at one end of the device motor housing. It can only be used to Gerotor tongue bone joint end At , the central shaft rotates and provides mechanical drive. Center on fixed axis The rotating shaft has a relatively narrow area between the tongue bone joint and the end of the housing. It is entirely supported within by bearings. A dog that performs eccentric rotational movement The shaft on the bone side cannot be supported by a bearing, and the central drive shaft It plays a role as a standard (leTel) that gives a favorable lifting power to the people.

In practice, a mechanical brake is used between the hydraulic motor and the actuating machine or between the hydraulic motor and the actuating machine. attached to a mechanical drive train somewhere within the mechanical system itself. mechanical brake The key is to use hydraulic motors to drive heavy machinery or raise and lower platforms. When used, their fixed position must be ensured as required.

If there is a hydraulic fluid leak, the hydraulic motor will not be able to rotate when the water pressure source is turned off. and thereby inadvertently mechanically rotate in the opposite direction. This kind of reverse rotation , which in many embodiments is extremely dangerous. In this case, the water pressure motor is must be combined with a limited enclosure or a mechanical shaft fixing device. There wasn't. When a hydraulic motor is used as a vehicle motor to propel a vehicle, the The mechanical shaft locking device serves as a parking brake device. mentioned above In a common gerotor motor, the mechanical brake device is installed on the central shaft. be placed. As a result, the braking system is directly connected to the motor and the machine it propels. The result is a column. Therefore, the brake device must be installed when the motor is mounted on the machine. must support the torque load of the motor when The bending structure is the motor/ Extends the entire length of the brake system and connects the motor/brake system. This increases the overall weight and cost of the system. In addition, the machine driven brake device be placed between the hydraulic motor drive and the central motor shaft and its bearings. This causes undesirable bending and torque loads to be applied. For this reason, hydraulic actuation / Mechanical fixed operations are sometimes required in practical use cases so that they are not subject to counteracting forces. I had to make adjustments. Between brake action and central motor shaft If there is a misalignment in the shaft, bending loads and and torque load. Bearing and shaft failures can cause such motors to It is usually extremely It was not a good situation.

However, some gear motors are designed to have central rotation through motors. It's been in. In this type of motor, the outer track member is the inner member. When rotates centrally around a fixed axis, it performs eccentric motion. For example, the United States Patent No. 2,989,951 is an example.

In a hydraulic motor with a through shaft that rotates around a fixed axis, the shaft The foot projects outwardly from both ends of the motor, and it extends along its fixed axis of rotation. used as a propulsion or braking shaft at either end . Creating a fixed rotating shaft generally means that the outer member of the gerotor set is connected to the inner member. This is accompanied by orbital motion around a fixed rotation axis. The outer member is It does not rotate about its own axis. It is rather a rotating inner member It is an orbital motion that revolves around a fixed axis in a non-rotating state. This motion is a circular reciprocating motion. A type of motion in which the entire outer member is positioned at a slight radial distance from the axis of the inner member. Perform circular movements. This radial length allows for expansion and The bias required for a pump or motor that operates by forming a contraction chamber. It is the amount of mind.

Through-shaft motors are an improvement over the gerotor type motors described above. It was something. However, they are not suitable for high-capacity operations that generate high torque loads. Certain drawbacks could not be overcome when used as

These devices are limited in their design by valves and cables. Ta.

Steffen, U.S. Pat. No. 4,025,248, describes a central shaft as described above. An orbital motor is disclosed. In this motor, the shaft has three knees. It is supported by a dollar bearing. In this type of motor, needle bearings are mainly used. to control the bending of the shaft, it cannot withstand large thrust loads, It is unable to withstand thrust loads along its longitudinal axis. Stephen's motor is With its two-valve arrangement, a needle bearing is placed adjacent to its gear center. It could only be used in cases where Between the inner and outer members The intervening chambers accommodate each member of the orbiting outer member to achieve efficient valve flow. The valve port is in fluid communication with a valve port provided in the valve port.

This arrangement limits the space around the shaft in close proximity to the gear set. i.e. , bearings have to be installed, and therefore this kind of equipment is suitable for small thrust loads This was limited to operations that would result in a violation.

Carlnon U.S. Pat. No. 2,989.951 discloses a rotating inner member and an orbital motion. An orbital motor is disclosed having a gerotor comprising an outer member.

These are driven by valves on both sides of the gerotor set. . This device, like Steffen, efficiently operates the valves in the gerotor set. I need to do it now. If this type of valve is installed only at one end of the gerotor, At normal motor speeds, the chamber fills slowly with fluid and is not properly supported at I can't.

Houne, US Pat. Discloses a car motor. This device has a shaft that is axially separated from the central rotating gear. It has a complex pulping device that requires a receiver. This bearing support is most useful in preventing bending of the shaft.

Other methods of supporting the shaft closer to the actuating member than those described above include: Fill the diameter of the shaft so that bearings can be placed adjacent to these parts. This is a method to reduce the size to minutes. In this way, the central shaft has a large torque Damaged under load.

The embodiment described below is an improvement on a conventional hydraulic motor. U.S. Patent No. 8,62 The conventional motor disclosed in No. 8,829 was not intended for use in the heavy machinery industry. Not yet. High torque/low speed motors have been bearing system of the motor, but within the scope of this new design it is possible to carry heavy loads. We were able to maintain the characteristics of a penetrating shaft that can withstand such use. .

Therefore, bearing damage and shaft destruction can occur even under large torque conditions. There was a need for a compact through-shaft motor that did not require a lot of space. This model motors are more efficient and mechanically efficient in hydraulic motor systems. A device according to the principles of the present invention that reduces displacement due to breakage of the brake system is Fluid displacement device with inlet and outlet ports for hydraulic fluid inlet and outlet I'm putting it down. Inside the motor housing, there is an inner member that connects the shaft vertically. It is mounted on a central shaft for rotation about a fixed axis. style The bodies are replaced between the inner and outer members. This outer member is used to secure the shaft. It is installed in the housing so that it moves eccentrically around a fixed axis. .

A shaft projects outwardly from one end of the motor housing and is connected to the inner member. and is supported by three bearings adjacent to the inner member. Two of the bearings are The last one is a tilted roller bearing and the other one is a needle bearing. child When these bearings are installed on heavy machinery and put into operation, they are exposed to the shaft of the equipment. It is designed to handle thrust loads, bending loads, and side loads.

In a preferred embodiment, the inner member and outer member are circumferentially spaced apart. Forming multiple fluid chambers. This fluid chamber accommodates rotation of the inner member and orbital movement of the outer member. changes its size in response to motion. Furthermore, the inner member has a large number of semicircular shaped teeth. have. In a preferred embodiment, the teeth are located in pocket-like portions of the inner member. It is formed by a roller that is held within minutes. The outer member has its inner diameter It has a large number of precisely formed radii on its surface. The number of teeth formed is The semicircular shape of the wood also means that it has one more tooth than the other. Preparation tooth In response to rotational/orbital motion and rotation of the inner/side member about a fixed axis, the inner member Semi-circular shaped teeth and non-circular shape to provide continuous reciprocating interaction .

In a preferred embodiment, the mechanical brake system is centrally located within the motor housing. It is mounted on the shaft.

The brake system consists of a brake disc mounted on the shaft and a motor housing. The non-rotating brake pads are mounted within the Rotatable brake disc with brake pads to rest, i.e. stop and a device for bringing it into contact.

In a second preferred embodiment, the rotatable central shaft comprises a rotatable central shaft; A central shaft protrudes outward from the housing at both longitudinal ends of the housing. The motor housing has a foot. The inner member and outer member are as described above. As in the first embodiment, it is arranged within the housing. However, One end of the foot is for attaching an outer brake device similar to the inner brake device mentioned above. used for. The second end of the shaft has rotational motion provided by a motor. used to drive machinery.

In both embodiments, the core is capable of supporting large thrust loads and bending loads. A compact hydraulic fluid displacement device is provided. The present invention is directed to one drive shaft of a trench machine. When used as a mechanical brake at a point away from one end of the central shaft. provide key.

Brief description of the drawing FIG. 1 is a sectional view of a hydraulic motor according to the present invention. The cross section is the length of the central shaft. taken along the direction.

Figure 2 is a cross-sectional view of the hydraulic motor taken along line 2-2 in Figure 1, and shows the internal gear. Showing the set.

Figure 3 is a cross-sectional view of the hydraulic motor taken along line 3-3 in Figure 1. It is showing bu.

Figure 4 is a partial cross-section of a hydraulic motor showing the operational relationship between the gear set, rectifier, and pulp. It is a front view.

Figure 5 shows the mode illustrated in Figure 4 when the inner member rotates slightly clockwise. FIG.

Figure 6 shows the motor shown in Figure 5 when the inner member rotates further clockwise. FIG.

FIG. 7 is a plan view of a second embodiment of the invention with an external brake. and , FIG. 8 is a cross-sectional view of the second embodiment taken along line 8--8 in FIG.

Detailed description of examples FIG. 1 is a longitudinal sectional view of a hydraulic motor 8 according to the present invention.

The motor 8 has an internal braking device, generally designated 20, and a large thrust negative Three bearings 14, 16 and 18 are provided to support the load and bending loads.

The hydraulic system of Figure 1, described below, uses a pressurized fluid to cause the rotation of /set. I am using it. This device also works well if shaft rotation is applied to the unit. It can also be used as a device for generating pressure fluid. Therefore, this device can be considered both as a hydraulic motor and as a hydraulic pump.

The hydraulic motor shown in FIG. 1 has a central shaft 12 that rotates around a fixed axis. Supported - placed inside Ujifugu 9. The shaft 12 has two inclined rods. centering its longitudinal axis by roller bearings 14,16 and one needle bearing 18. It is rotatably held.

The motor housing has four parts for ease of assembly and access to internal components. made from parts. The motor mounting housing 11 has an inclined roller bearing 14.1 6 and a shaft exit area, the elongated shaft 12 is connected to the shaft exit area. Exiting from the mouth area and attached to the machine. Mounting flange 72 The motor can be fixed to the machine frame during use, and the It plays the role of transmitting the reaction force that occurs frequently.

The gear cent housing 10, together with the two gear members 30, 32, is fitted with a pulp plate 48. It is equipped with As described below, the outer member 32 does not rotate. It's designed to look good.

The rectifier housing 13 directs fluid from the inlet port 46 and the outlet port to the pulp plate. It surrounds a rectifier 57 which serves to send the signal to 48. The rectifier housing 13 is , and also supports the needle bearing 18 that supports the shaft in the brake area 20. ing.

The brake housing 21 secures the shaft 12 and provides safe machine operation as required. It supports a brake device 20 that stops its rotation due to movement.

To access the brake area, remove bolt 40. Additionally, the valve and gear set, by opening the f-seat hole 68 (see Figures 2 and 3). Remove the attached bolt 62. Inclined roller bearings 14.16 are mounted on the shaft 12 on each side of the bearing 14.16. It is held in place by an attached snap ring 15.17. S The roller 19 prevents hydraulic fluid from leaking forward of the shaft near the tilt bearing 14. The sea urchin is sealed. The retainer 21 has a seal 19 adjacent to the snap ring 15. hold in place.

FIG. 2 shows the mode of FIG. 1 to illustrate the fluid chamber 52 in which hydraulic fluid is circulated. FIG. As described below, the high pressure fluid responds to eccentric movement of the outer member 32. As the chamber becomes larger or smaller, the inner member 30 is rotated. let

The hydraulic fluid paths used in this device are shown in Figures 1, 2 and 3. Most of all, you can understand it very well. The high pressure fluid is supplied to the inlet port 46 (Fig. 1). ) into the water pressure motor. The base part of the entrance 46 is a gear rally 47. This gearbox directs fluid through eight inlet rectifier ports 54 (drawn with dotted lines in Figure 3). ) plays the role of sending K.

A gear gallery or high pressure chamber 47 is connected to and between all high pressure ports 54. It consists of an annular opening in the rectifier 57 that equalizes the pressure in the flow chamber. high pressure fluid 2 through a pulp plate 48 which is fixed to the shaft 12 and rotates therewith. It flows. Plate 48 has a number of fluid communication ports 56. Pulp board 48 and port 56 are depicted in solid lines in FIG. Pulp board, rectification Fluid from the vessel ports is selectively routed between the rotating inner member 30 and the non-rotating outer member 30 illustrated in FIG. It is possible to enter the chamber formed between the side member 32 and the side member 32. High pressure fluid enters chamber 52 Once there, the chamber expands and the central motor shaft 12 thereby rotates.

The fluid whose pressure is reduced by propelling the central shaft 12 passes through several of the chambers 52. remains inside. This fluid is removed from the motor chamber 52 through the pulp plate. Ru. Pulp plate 48 selectively opens low pressure rectifiers from the chambers that are about to contract. Connects to port 49. These ports are connected together as shown in Figure 1. is connected to a gear, that is, a high pressure chamber 51. This annular high pressure chamber is Equalize the pressure and direct fluid to an outlet port similar to inlet port 46. this exit Fluid from the port is drained from the motor and returned to the fluid source.

The inner member 30 (FIG. 2) is attached to the shaft 12, which rotates about a fixed central axis. It is attached. The inner member 30 has a plurality of circumferentially spaced semicircular shapes. It is composed of gear teeth 61. In the preferred embodiment of FIG. 2, the teeth 61 are It consists of a circular cylinder, ie a roller 61. The roller 61 is rotating It is held at a constant radius from the heart. The outer member 32 is formed with a non-circular shape. The inner member has an inner surface 33 having three of the teeth on the inner member. One more tooth (eight) than the number (seven) is formed.

The outer member 32 is mounted eccentrically inside the Ujifugu 10, but its axis It does not rotate around 92. The center point of the outer member, i.e. axis 92, is located at the inner part. Orbital motion is performed around the rotation axis of the material 30. Due to that movement of the center of the outer gear The radius E of the circle formed defines the amount of eccentric movement of the outer member.

The rotational movement of the outer member is caused by a roller 73 attached to the housing 10. blocked. These rollers prevent outer member 32 from rotating but are biased. To allow cardiac movement, i.e. the center of the outer gear is aligned with the fixed center (shape) of the inner member 30. The shaft 12) is installed in the gear housing 10 so as to orbit around the shaft 12). It's been done.

The inner peripheral surface of the member (IGR) 32 formed on the inner side of the outer member is polished. Other shapes are formed by twisting the song by a mechanism. This song twisted 9 times The shape cooperates with the eccentric movement of the outer member 32 to allow the rotation of the outer member and the rotating inner member. Provides continuous contact with the teeth. Thereby, the teeth of the inner member are always attached to the outer member. are brought into contact with.

In this way, the inner and outer rotors combine with the eccentric non-rotating motion (orbital motion) of the outer member. Circumferentially spaced volume changes in response to central rotational movement of the inner member A sealed chamber 52 is formed. Each of the rollers 61 is attached to the formed inner surface 33 of the outer member 32. located at a suitable radial position relative to the 14 The stones thus form seven hydraulically sealed chambers 52. Smoothly formed surface 3 3 has a low friction working surface, thereby facilitating rotation of the inner member 30. are doing.

To operate the motor, high pressure fluid is supplied to inlet port 46. Entrance 46 A gear gallery 47 is arranged at the base portion. Gallery, or hyperbaric chamber (Blenheim) ) delivers fluid to eight fixed rectifier inlet ports 54 as shown in dotted lines in FIG. Ru. The high pressure chamber 47 communicates with all the high pressure ports 54 and equalizes the pressure between them. It consists of an annular opening in the rectifier.

Pulp plate 48 is adjacent to inner member 30, as shown in FIGS. 1 and 3. and is fixedly attached to the shaft 12. Therefore, the pulp board 48 It rotates together with the material 30. of pulp plate 48 to fixed rectifier port 49.54 Depending on the relative rotational position, there are seven valve ports 56 (8 in Figure 3, drawn in solid lines). ) connects the passage from the gear outlet chamber 52 to a high pressure port and a low pressure port, respectively. It communicates with the rectifier at position 49.54.

Figures 4 to 6 show the relationships between gear sets, valves and rectifier motors during operation. This indicates the person in charge. In the figure, the gear set is drawn with imaginary lines and has 8 sheets and an arrangement. Flush ports are depicted with dotted lines.

Figure 4 is a cross-sectional view of the gear set and valve, and the motor rotates clockwise. . Chamber 52A is fed from rectifier port 54A through valve port 56A. It is shown increasing in volume as it is filled with high-pressure fluid. has been done. Chamber 56B is in its maximum volume condition and is not connected to any rectifier port. I haven't passed it.

Figure 5 shows that the motor has rotated a fraction of a revolution from the position illustrated in Figure 4. The same components as in FIG. 4 are shown in a state shown in FIG. The shaft 92 of the outer member 32 is The orbital movement of member 80 about axis 90 continues. As a result, chamber 52A reaches its maximum volume state. The illustrated chamber 52A is not sealed at the time; Due to the rotation of valve port 56A, it is not in fluid communication with the rectifier. room 52B reduces its volume and the pulp plate directs low pressure fluid to rectifier port 49C. This allows suction to be drawn from chamber 52B through valve port 56B.

FIG. 6 shows that both chambers 5, 2A and 52B have reduced their volumes and their low pressure flow The next stage of the motor shows the state in which the body suctions through valve ports 56A and 56B. The floors are illustrated.

In either case, the largest volume chamber 52 is present during the movement of the inner and outer members. When the pulp plate 48 reaches its minimum volume, the volume of its chambers reaches its minimum state and the pulp plate 48 The pressure fluid is removed 1 so that only that chamber communicates with the low pressure rectifier boat 49. Open to. In the minimum volume position, the valve switches the connection state to high pressure only, thereby , filling the chamber to its maximum volume. Thereby, the high pressure fluid and the low pressure fluid are The chamber 52 between the inner rotor 30 and the outer member 32 is intermittently fed 6 And it is forced to eject υ.

The high pressure fluid entering the gear set chamber causes the volume of chamber 52 to increase in response to the high pressure condition. When the pressure is low, the teeth provided by the roller 61 are pushed toward the low pressure area. rotate Using fluid pressure to provide energy reduces the hydrostatic pressure of the fluid. low pressure Fluid is drawn through the pulp plate 48 from the chamber formed between the outer and inner rotors. be returned. Pulp plate 48 now opens a passageway to low pressure rectifier port 49. ing. To reverse the motor, reverse the high pressure fluid and low pressure fluid to the inlet and outlet. You can add it to The motor efficiently rotates in a direction opposite to the direction described above.

The seven valve ports 56 or field elements on the valve plate 56 are Rotation is activated. Fluid pressure for rotational energy in each of the seven chambers 52 Continuous release of force provides large torque with small rotations.

If similar fluid pressure is applied to the inlet, a conventional Jell-O with two pulp ports The valve motor rotates at a higher speed/lower torque than the valve motor described above. For this reason , the motor of the present invention can be considered a high torque/low speed motor.

An additional advantage of using a rotating pulp plate 48 is that such a pulp plate allows A large amount of fluid enters the open chamber 52 and closed chamber 52 of the gear center at a very high velocity. There is a point where you can enter and exit. A narrow recess 80 (no. 3), the fluid from the rectifier 48 flows between the rectifier housing 13 and the rotating part. 7 located between the loop plate be able to. These narrow recesses 80 are connected to the rectifier housing and the rotating pulp. It prevents wear between the pulp board and the pulp board and helps maintain balance. Rotating part If there is an unbalanced point on the product, eccentric movement will occur and wear will progress rapidly. . The pulp plate rotates together with the inner gear 30 rotating in the center, so Such eccentric movements are prevented.

The chamber 52 formed by the reciprocatable member 80.32 is configured to accommodate the injection of high pressure fluid and It is driven to perform rotational movement by suction of low-pressure fluid. fluid energy The gear is used to generate rotation of the shaft and perform work.

The inner gear rotates in the center, and the valve is connected to a pulp plate and and a rectifier, thereby preventing any eccentric operation of the motor. There is no need to adjust dynamic characteristics.

By using such valves, valves and rectifiers are more convenient than traditional ones. It is now possible to place the port radially away from the shaft.

This allows the working member 80.8 to have sufficient support from the central shirt track. 2 and adjacent to the pulp plate 48, a large It is now possible to arrange support bearings 14, 16 and 18. This arrangement is This is a huge difference from the traditional valve arrangement, which consists of regular gears and a gerotor motor. It's set. Conventionally known rotor motors have an outer peripheral interface formed on their inner member. have. This configuration allows the valve to be attached to the central shaft compared to that of the present invention. radially closer, so that the bearing is adjacent to the rotating member. could not be placed.

An important part of the invention that allows the motor 8 to be used under high load operating conditions is the type of bearing. That's how the bearings are arranged. Bearings 14.16 are suitable for large radial loads and It consists of oppositely tilted roller bearings that can support both thrust and thrust loads. ing. These bearings are fitted with gear set 30.3 for maximum motor support. It is located adjacent to 2. Each of the inclined roller bearings has an outer race 34 and a cage. Consisting of a roller 36 in the cage (not shown) and an inner race 38. has been done. During the rotation of the shaft 12, the rollers in the cage move between the inner race and the outer race. Rotates while still touching. The inner race 38 is fixed to the shaft 12 and Thus, the inner race 38 moves in accordance with the movement of the shaft.

The outer race 34 is attached to the fixed motor mounting housing 11.

In addition to the inclined roller bearing, the needle bearing in the rectifier Ujifugu 13 is attached to the shaft. I support 12. In particular, the needle bearing 18 is a shaft in the braking area 20. Supports the foot 12. The needle bearing 18 allows the appropriate rotational speed to be adjusted to this embodiment. Provided at The rotation speed is maintained at 2000 rpmVcm with minimum friction. be done. Needle bearings support bending and side loads on the shaft. be In some embodiments, sleeve bearings may be used in place of the illustrated needle bearings. It is preferable to do so.

The needle bearing 18 consists of a rotating shaft 12 and a fixed member located around the shaft 12. It is composed of a needle roller 100 that rotates between a constant rectifier 57 and a constant rectifier 57. Low La 100 is a hardened part of the central shaft that serves as the inner race. It rotates between the rectifier and the uzing, which acts as an outer race. needle The rollers 100 are held in a cage (not shown) as they rotate. It is.

In a preferred embodiment, the bearings 14, 16 and 18 are of an internal gear set for lubrication. It consists of an oil feed bearing using hydraulic fluid. Check pulp 50 is inclined Roller bearings 14,16 are lubricated with fluid from inlet port 46 by means of a gear set. I'm trying to do that. Fluid from the inlet port is typically within the roller bearing area is higher than the fluid pressure. This pressure normally causes check valve 50 to Hold in closed position. When the fluid pressure near the bearing becomes higher than the light body pressure at the inlet , that is, if the rotation of the motor is reversed, the pulp 50 will automatically open and the passage will open. 67 to prevent excessive pressure on the roller bearings. Ru. Bent boats 58 typically have large back pressures that must be removed from seals 19. It is closed by a plug 60 unless otherwise specified. Needle bearing 18 is water It is lubricated by a pressurized fluid, and this fluid leaks through the pulp plate 48. is now possible.

In addition to the bearings mentioned above, to solve the problem of “high shaft loads” and bearing destruction. , an integral shaft fixed brake device 20 is provided. 10th 1st fruit In some embodiments, the brake system 20 is adjacent to the motor and in the same nozzle assembly. placed inside the body.

The brake device 20 is of a multi-disc type and has three rotary discs 22. are doing. The disc is connected to shaft 1 by precision finished splines 105. It is fixed at 2. When the disc 22 contacts the non-rotating brake element 24, the Rotation of the shaft is stopped, ie, stopped altogether.

The non-contact position of the brake element 24 is normally maintained by a spring 26. Ru. In this position, the disc 22 is free to rotate with the shaft 12.

When the shaft is fixed, that is, when the brake is applied to the shaft, the piston plate 28 is Move the rake band 24 to a position where it touches the disc 22, thereby The movement of shaft 12 is completely stopped.

In a preferred embodiment, fluid applied to boat 110 is placed in annular chamber 112. the piston to release the brake system and/or to unfasten the shaft. maintain fluid pressure on the tube 28. The opening chamber 112 is connected to the inlet port 4 by a groove. 6, through which the pressurized fluid for operating the motor moves the braking device to its free position. It can also be kept in place. This method automatically releases the inlet pressure. Motion 1 Acts as a safety device to secure the shaft.

To access the brake equipment, bolt 40 is removed. This allows the block The rake housing 21 can now be removed from the hydraulic motor. Hydraulic fluid seal 4 2.44 to ensure that there is no leakage from the brake area. sticker 42 seals fluid from mechanical piston plate 28. The seal 44 is Prevents fluid from leaking from the plain and needle bearings 18 and entering the brake device. .

The braking device is mounted directly on the central rotating shaft of the hydraulic motor, so The general brake system of the present invention can eliminate misalignment. Also, the machine Therefore, the stress caused by this is also eliminated. This stress ) is transmitted directly to the motor through the brake device without going through the aforementioned transmission device. be reached. The brake system is preferably of the standard multi-disc type. do. However, for the same purpose other forms of mechanical design, e.g. Ram brakes or single disc brakes can also be used.

The above-mentioned brake device is designed to be used as a parking brake. It is. This brake device is used to stop or slow down the hydraulic motor during operation. may cause overheating. The aforementioned ones are similar to this design. No provision is made to additionally cool the brake system. however ,...A cooling device Z is added to the Uzing, which increases the range of use of the shibrake device. can be done. However, this is true in certain markets. It is not the intention in this preferred embodiment to satisfy that need.

The integral braking system is a through-shaft in hydraulic motors with multiple bearing supports. This can be achieved by using The advantage of this design is the first This is evident in the integral gear set illustrated in FIGS. Figure 2 shows A cross-sectional view of the hydraulic motor at the gear set position taken along line 2-2 in Figure 1. be. Figure 3 shows a section of the hydraulic motor valve 48 taken along line 3-3 in Figure 1. It is a front view.

Novel bearing/pulp unit and compact integral brake unit with through-shaft This has become possible by using an IGR device and an IGR device. internal dog bone In most common hydraulic motors that use couplings, the inner member is located at the center rather than at the fixed center. It is designed to be able to rotate eccentrically. The invention disclosed here is , external track members, compact pulping equipment, and non-forming around a fixed axis Combines the advantages of an inner member.

7 and 8 illustrate a second embodiment of the invention. In this example Therefore, the brake device 76 is attached to the outside of the motor for heavy loads. Figure 7 The hydraulically operated part of the heavy-duty motor shown in FIGS. It is the same as the hydraulically operated part of the motor. The embodiment shown in FIGS. 7 and 8 is the first embodiment. Combines the advantages of a through-shaft, a compact valve and a heavy-duty bearing arrangement Additionally, it may provide an improved external mechanical brake mounting device. can. This brake mounting device is of the same type as the one made by Artsco. and the same mechanical braking device 76 as detailed in the first embodiment. is installed. This type of braking device was developed in the US patent of Kreitner et al. No. 3,868,038, as fully disclosed. The through shaft 12 is The motor mounting housing 11 and the shaft, which are the positions connected to the machine, are connected to the brake equipment. through both rectifier housings 103, which is the position used by the It extends to the outside of the motor 78. The brake device 76 is necessary during machine operation. It is used to fix the shaft 12 if necessary.

FIG. 8 is a cross-sectional view taken along line 8--8 in FIG. 7. The cross section is along the shaft. The center/yaft 12 is supported as explained in the first embodiment. A similar bearing arrangement is shown adjacent to the gear center for this purpose.

As in the first embodiment, the bearings 14,16 consist of inclined roller bearings. bearing 18 consists of a needle bearing. Bearings 14.16 can handle large radial loads and While supporting thrust loads, the bearings 18 prevent bending of the shaft. These are especially Suitable for use with high torque/low speed motors. The pulp equipment is 4 with reference to Figures 4 to 6. Same as described, bearing can be placed adjacent to gear center .

The assembled motor housing consists of eight parts. motor installation The housing 11 and gear set housing 10 are those of the first embodiment described above. is the same as The rectifier housing 102 in this embodiment has an independent brake system. It is formed as a motor end suitable for attachment of 78. independent a shaft 1 extending beyond the motor housing for mounting a brake device 78; With the exception of the extension of 2, this embodiment corresponds in all respects to the previous embodiment.

By using the through shaft 12, misalignment with external brake equipment can be avoided. Can be removed. This motor/brake system is shown in Figures 1 to 6. Add minimal additional space to the machine or equipment that mounts the motor as required in the example. It only requires 4-spaces. The problem with the drive train of this machine is that This can be avoided by installing a braking device on the motor shaft itself. can be done. In conventional equipment, the brake equipment is able to withstand heavy loads. The brake system was placed in series with the drive train.

While the invention has been particularly illustrated and described with reference to preferred embodiments thereof, Various modifications and changes can be made to the invention without departing from its technical scope.

For example, various types of brake devices can be assembled into the device of the present invention. can be included. Place the through shaft and heavy load bearing adjacent to the gear center. An improved braking system is provided. In particular, mechanical brakes The use of key devices is also less critical. Additionally, various mounting devices are available. , can be designed without changing the basic concept of the invention. of this model Fluid power devices generate fluid pressure by imparting rotation of a shaft Can be used as a pump. In such cases, mechanical braking devices , generally not required.

Engraving (no changes to the content) Figure 7 Figure 3 PCT/C(';83　/rst(, Za36 person who makes corrections) Relationship to the incident: Applicant Midori - Tough Sony F Nichols Kan 0 Knee 6, subject to correction international search report

Claims (1)

[Claims] 1. A housing having an inlet port and an outlet port for putting in and taking out fluid. Zing; The shaft is rotatable around a fixed center, and the shaft is rotated by three bearings. a shaft rotatably supported within the housing; Mount the shaft on the shaft so that it rotates centrally about the vertically fixed axis of the shaft. an inner member attached thereto, the inner member being disposed between the bearings; installed in the housing so as to move eccentrically in a non-rotating orbit with respect to the fixed shaft. The outer member is attached to the inner member, and the volume inside the room changes with the rotation of the inner member. a plurality of circumferentially spaced chambers defined in cooperation with said inner member; Outer member: In addition to supplying the fluid from the above-mentioned inlet to many of the above-mentioned chambers, the remaining other chambers are draining the fluid into the outlet boat, thereby causing the inner member to rotate. pulp equipment; and A mechanical device attached to the shaft and the device for operating the brake device. Brake device; two of the above bearings are from shaft thrust resistance bearings. Device configured 2. In the device according to claim 1, one of the bearings is a needle. bearings, and two of the bearings are inclined roller bearings. 7 A device. 3. The device according to claim 1, wherein the brake device is connected to the housing. A device that is positioned within a group. 4. A housing having an inlet port and an outlet port for fluid ingress and egress; A shaft mounted within the above housing to rotate on a fixed axis: The shaft is attached to the shaft so that it rotates about the fixed vertical axis of the shaft. an inner member having a plurality of circumferentially spaced teeth, the inner member having a plurality of circumferentially spaced teeth: inside the housing for eccentric non-rotational movement relative to the fixed axis of the shaft. Attached outer member: A large number of precision , the number of teeth is one more than the number of teeth of the inner member, and the teeth are connected to the teeth of the inner member. It is made to have continuous back-and-forth interaction, thereby making Φ≠fragrance; teeth cooperating with the member to define a number of circumferentially spaced chambers; through said chambers; A fluid connection between the inlet port and the outlet port is provided, with the fixed axis being the center. is mounted for rotation, thereby connecting said inner member and said shaft. Valp device for rotation; disposed adjacent both the inner member and the pulping apparatus, thereby 32 bearings rotatably supporting the central shaft; and 28 A brake device fixed to the shaft and a device for operating the brake device. ; A device consisting of: 5. The device according to claim 4, wherein the brake device comprises: A rotating disk attached to the shaft and positioned adjacent to the disk. a non-rotating brake member movable in the axial direction, and the brake portion a device for contacting said disc with said disc, thereby stopping rotation of said shaft; A device consisting of 6. The device according to claim 4, wherein two of the bearings are A system consisting of inclined roller bearings that support the axial thrust applied to the shaft. , and the remainder of the bearing supports the shaft adjacent to the brake device. , cooperates with the inclined roller bearing to apply a bending load to the shaft. A device consisting of an erected needle bearing. 7. The device according to claim 4, wherein the teeth disposed on the inner member The wheel teeth consist of rollers positioned in pockets on the outer circumferential surface of the inner member. A device made by 8. A motor housing having an inlet port and an outlet port for fluid ingress and egress; A shaft mounted rotatably around a fixed axis within the motor housing above. ; Mounted on the shaft so as to rotate about the fixed vertical axis of the shaft. inner member; inside the housing for eccentric movement about the fixed axis; an outer member attached to the inner member, the outer member cooperating with the inner member to provide a plurality of circumferentially extending an outer member defining spaced chambers; fluidly communicating the inlet port and the outlet port through the chamber, thereby The inner member and the shaft are rotated about the fixed axis. a valve device mounted so as to rotate; provided adjacent to the inner member and the valve device to support the shaft; at least two bearings: and a rotating disk drive mounted on said shaft. a rake mounted within the housing and moving along the longitudinal axis of the shaft; at least one non-rotating brake pad movably represented and said shaft; moving the pad into contact with the rotating disk along the longitudinal axis of the Therefore, a brake device comprising a device for limiting rotation of the shaft; A device consisting of: 9. The device according to claim 8, wherein the brake device is connected to the housing. A device attached to one end of the shaft within the shaft. 10. Housing with inlet boat and outlet port for fluid ingress and egress: a shaft supported by a thrust resistance bearing within the housing; Mounted on the above shaft so that it rotates centrally around the vertically fixed axis of the above shaft. an inner member disposed between the bearings; installed in the housing to perform eccentric non-rotating orbital motion with respect to the fixed shaft. an outer member attached to the inner member, the interior volume of which changes in response to rotation of the inner member; an outer member that cooperates with said inner member to define a plurality of circumferentially spaced chambers that Side member: The flow from the inlet port is supplied to a number of chambers, and the fluid from the remaining chambers is supplied to the outlet port. discharge to the mouth port, thereby rotating said inner member, shaft and pulp member. a valve device fixed for rotation with said shaft; fluid from the valve device and the outlet port between the valve device and the housing. flow into the space, thereby preventing wear between the valve devices and disassembling the valve device. a fluid passageway in the valve device that improves performance; and A brake device attached to one end of said shaft. Engraving (no barbaric content) l