KR100192559B1 - Arm cylinder hydropneumatic suspension unit - Google Patents

Abstract

The present invention relates to a transmission and housing unit (20) having a reciprocating means (10) for generating an atmospheric pressure and having a rod wheel spindle coupling part (5) for fixing and supporting a view wheel (3) A link means 40 for transmitting the motion of the reciprocating means 10 to the housing means 20 serving as the electric motor and a fixed shaft 32 for connecting the means 20, And a shock absorber (70) which is fluidly connected to the reciprocating means (10) of the electric motor and the housing means (20) and alleviates the abrupt oil pressure, With regard to the suspension device,

It is possible to reduce the weight and the mounting volume of the suspension device itself by performing the function of the conventional tank view wheel supporting arm by the housing block of the suspending device so that the space available in the tank can be increased while maintaining the wheel supporting durability Respectively.

Description

Tank Arm Cylinder Integral Type Hydrostatic Suspension Unit

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an arm-cylinder-integrated hydraulic pressure suspending device for a tank, and more particularly to an oil pressure suspending device for a tank in which a spring and a damping function are interlocked with a road wheel of a large- (HSU, Hydropneumatic Suspension Unit) which can be mounted and operated.

As today's high-tech advances dramatically, the effects are widespread throughout the industry, which is no exception to the military sector. Thus, state-of-the-art equipment is being applied to military facilities and equipment, as is the case with armored equipment, which is a key element of ground warfare.

As such, the advancement of war performance has inevitably necessitated an improvement in performance even in the case of a combat vehicle. However, in the case of tanks requiring both protection and maneuverability like tanks, they have certain limitations in improving performance.

In other words, the protection performance of the tank is closely related to the strength of the tank shell such as the thickness of the tank shell, and conversely, the maneuverability is inversely proportional to the thickness of the tank armor, Combat vehicles have always had difficulty in seeking to improve strength and maneuverability at the same time, and the present invention also focuses on these problems that arise in connection with suspension devices for tanks.

Hereinafter, the above-mentioned problems will be described in more detail with reference to the drawings. In the conventional tank 301 shown schematically only in the lower part of FIG. 1, a caterpillar 305 wound on a plurality of wheel rings 303 And driven by a drive wheel 307 mounted thereon. Here, the view wheel 303 is equipped with a suspension device 309 which acts as a spring and a damping device.

2, the suspension device 309 includes a housing block 313 fastened with bolts 311 at the lower ends of both sides of the tank, an upper end inserted into the housing block 313, The lower cylinder 315 and the upper cylinder 315 are inserted into the nitrogen cylinder 319 and the hydraulic oil chamber 321 and inserted into the floating piston 323 and the lower cylinder 317 so as to slide therein, A piston 327 slidable in the right and left directions by the connecting rod 325, a damper 328 for fluidly connecting the hydraulic cylinder chamber 321 side of the upper cylinder 315 and the lower cylinder 317, A crank portion 331 having a piston 327 connected to the crank portion 331 through a spline hole 323 and a spline shaft 329 attached to the other end thereof, The rod 329 is aligned and the rod wheel spindle And an arm 339 to which the wheel 337 is supported and fixed by the arms 335 and 335.

Accordingly, the suspension device 309 rotates the arm 339 in the counterclockwise direction as indicated by B in the figure when the wheel 337 rises in accordance with the road surface conditions during the operation of the tank 301, and the splines 329 and 333 Thereby rotating the crank portion 331 in the counterclockwise direction. When the rotational force of the crank portion 331 is applied to the piston 327 through the connecting rod 325, the hydraulic oil in the lower cylinder 317 is pressurized. The hydraulic pressure of the pressurized hydraulic oil acts on the upper cylinder 315 through the damper 328 to compress the nitrogen gas on the side of the nitrogen chamber 319 through the floating piston 323. [

In this state, when the tank 301 reaches the flat surface, the upward load acting on the view wheel 337 disappears and the compressed nitrogen gas and hydraulic oil expand, so that the wheel 337 is resiliently returned to the original state. (309) allows the view wheel (337) to be resiliently retained as if it were a damper spring of an automobile suspension.

If the wheel 337 rapidly ascends, the pressure applied to the damper 328 also increases sharply. At this time, the damper 328 relaxes the sudden pressure rise as a function inherent to the damper, And so on.

3, an arm 339 is mounted in a state in which the arm 339 is fully exposed to the outside of the housing block 313, and the arm 339 is connected to the arm 339 through a load wheel spindle 335, The arm 339 is made of nickel chromium molybdenum steel (SNCM), which is a general material used for a tank structure. However, the arm 339 is a large- In the case of tanks, the load is so large that the ground load is close to 6 ton when stopped and 24 ton when operated. Therefore, the overall strength is maintained by increasing the production dimension such as thickness and width.

As the arm 339 becomes larger in size, the total weight of the component parts per unit is increased to about 300 kg as the arm 339 becomes larger, and the dimension of the lateral width excluding the view wheel 337 is about 280 Mm. Accordingly, when considering the entire tank 301 having a plurality of suspension units, it is impossible to avoid an increase in the total weight, which results in deterioration of maneuverability for the purpose of increasing protection or durability as described above . Likewise, when the horizontal width of the suspension device 309 is compared with a tank having the same external dimensions, the space inside the tank such as the adjustment chamber is relatively reduced. As a result, the load of the shell or fuel is relatively reduced, .

As described above, in the tank, the relationship between durability, mobility and maneuverability are mutually contradictory, and in particular, in the case of a suspension device, there is a conflict between the problem of strength and the problem of volume efficiency. Accordingly, the object of the present invention is to improve the durability and the maneuverability of the suspension device by not causing reduction in the volume efficiency due to the suspension device without causing a problem of strength to the suspension device .

In other words, by integrating the function of the arm supporting the view wheel of the tank into the housing block to eliminate the need for a separate arm, the suspending device can be made compact to maintain the view wheel support durability by the arm of the conventional suspension device, The purpose of which is to increase the internal usable space and to reduce the total weight and ultimately to improve the maneuverability of the tank.

In order to achieve the above object, according to one aspect of the present invention, there is provided a motor vehicle comprising: a motor-driven housing unit having an internally formed reciprocating means for generating an atmospheric pressure and having a rod-wheel spindle- A link means for transmitting the motion of the reciprocating means to the motor-combined housing means; a link means for transmitting the motion of the reciprocating means to the motor-combined housing means when the rotation center of the link means and the motor- And a fixed shaft means to which these means are coupled and mounted.

Further, in the above-mentioned arm cylinder integrated type hydraulic pressure suspending device for a tank, the transmission and housing means includes a through hole forming an upper chamber therein, a blind hole forming a stop chamber, and a blind hole forming a nitrogen chamber And an arm portion into which an airtight plug is inserted is provided at one end of the clogged hole.

A power transmission and housing means in which a rod wheel spindle coupling portion for fixedly supporting a view wheel is attached to the outside and a motion of a reciprocating means is transmitted to the motor- And a fixed shaft means which serves as a rotation center of the link means and the power transmission and housing means and to which these means are coupled and mounted. In the hydraulic cylinder type integral type hydraulic suspension system for a tank, the reciprocating means And a manifold having a hydraulic chamber therein and an upper and lower flow-out upper and lower flow passages for transmitting the generated oil pressure in fluid communication with the oil chamber.

1 is a schematic side view showing a lower body portion of a tank having a conventional suspension device;

2 is a side view of the conventional suspension device shown in Fig.

3 is a front view of the conventional suspension device shown in Fig. 2;

4 is a perspective view of a suspension device according to the present invention;

5 is a side view of a suspension device according to a first embodiment of the present invention;

Fig. 6 is a front view showing only the housing block of the suspension device shown in Fig. 5; Fig.

Figs. 7 and 8 are schematic side views showing a modified example of the rod wheel spindle fastening portion of the suspension device shown in Fig. 5;

Figure 9 is a cross-sectional view of the suspension device shown in Figure 5;

10 is a perspective view showing a mount of the suspension device shown in Fig. 5; Fig.

Fig. 11 is a plan sectional view of the mount of Fig. 10; Fig.

Fig. 12 is a rear view showing a damper of the suspension device shown in Fig. 5; Fig.

Fig. 13 is a cross-sectional view of the damper shown in Fig. 12 taken along line AA of Fig. 16;

Fig. 14 is a sectional view of the damper shown in Fig. 12 taken along line BB of Fig. 16;

Fig. 15 is a side cross-sectional view of the damper shown in Fig. 12; Fig.

Fig. 16 is a plan view of the damper shown in Fig. 12; Fig.

17 is a side view showing a housing block of a suspension device according to a second embodiment of the present invention;

18 is a cross-sectional view of a damper side of the suspension device according to the third embodiment of the present invention.

19 is a schematic sectional view for explaining a suspended state of the suspension device according to the present invention.

Fig. 20 is a schematic cross-sectional view for explaining the full-sound state of the suspension device shown in Fig. 19; Fig.

FIG. 21 is a schematic sectional view for explaining a fully rebound state of the suspension device shown in FIG. 19; FIG.

Description of the Related Art [0002]

1,100,200: Suspension device 3: View wheel

5: Rodwheel spindle coupling part 7: Rodwheel spindle

10: cylinder piston structure 20,120: housing block

40: Link assembly 53: Mount

55: mount spindle 70,270: damper

75: Magnetic valve 77: Relief valve

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, referring to the accompanying drawings, the present invention will be described in more detail with reference to the accompanying drawings.

As shown in FIG. 4, the arm cylinder-integrated hydraulic pressure suspending device 1 for a tank according to the present invention mainly includes a cylinder piston structure 10 (see FIG. 4) for transmitting power and forming an outer body, A link assembly 40 for transmitting the motion of the cylinder piston structure 10 to the housing block 20 and a mount spindle 55 to which the link assembly 40 is mounted And a damper 70 which serves as a buffer for transmitting an oil pressure generated in the housing block 20 or relieving an excessive oil pressure.

Here, the housing block 20 is largely divided into a hub portion 25 and an arm portion 33 as shown in Figs. The shaft portion 21 through which the mount spindle 55 shown in FIG. 10 is inserted is inserted through the bearing 26 into the hub portion 25. At this time, the edge portion 24 of the shaft hole 21 is formed thicker than the other portion of the hub portion 25 as shown in FIG. 6 to secure the mounting surface of the bearing 26.

The arm portion 33 of the housing block 20 has a through hole 27 formed at the upper end of its inner portion and a closed hole 29 formed at the lower end thereof. And a load wheel spindle fastening portion 5 to which the load wheel spindle 7 is inserted and mounted by a heat outside is attached.

7, the fastening portion 5 has a truncated cone shape having a large-diameter bottom surface attached to the housing block 20 in a basic form, and according to another embodiment, as shown in Fig. 8, In order to shorten the transverse length, the fastening portion 5 is formed of a curved surface in which only half of the housing block 20 side is maintained in the truncated conical shape with respect to the vertical surface passing through the central axis, It is possible. In another embodiment, the fastening portion 5 can be formed with a plurality of notches 39 in the truncated cone portion 37 to reduce the weight of the entire suspension device 1, as shown in Figure 5 .

4, a cover 23 is attached to the end portion of the housing block 20 on the side of the hub 25, and a hydraulic oil passage 57, which is provided on the center axis of the mount spindle 55, A hydraulic oil supply pipe 22 connected to an upper through hole 27 formed therein from the outlet of the hydraulic oil supply pipe 22 is attached to the front surface and the upper surface.

5, the screw caps 31 and 32 are screwed to the upper end through-hole 27 and the lower end closed hole 29 formed in the housing block 20 from the side of the damper 70, respectively, The piston 15 is inserted into the upper chamber 11 so as to be slidable in the left and right directions and the floating piston 13 is accommodated in the lower chamber 13 17 are similarly inserted in such a manner that they can reciprocate.

4 is formed in the space between the piston 15 and the screw cap 31 in the upper chamber 11 at this time in the cylinder block structure 10. In this case, The hydraulic oil supplied through the damper 70 is filled in the space between the floating piston 17 and the screw cap 32 in the lower chamber 13 and the hydraulic oil supplied to the chamber 11 13 and the piston 17 is filled with nitrogen gas. Here, as the hydraulic oil, flame retardant oil widely known for military use is used.

The link assembly 40 for converting the reciprocating motion of the piston 15 sliding inside the housing block 20 into the rotational motion of the housing block 20 is formed by connecting the connecting rod 43 and the crank (49). The connecting rod 43 has a spherical head portion 41 at one end and a pin hole 44 at the opposite end. The head portion 41 is connected to the piston 15 of the cylinder piston structure 10, In a ball socket manner. The crank portion 49 coupled to the connecting rod 43 by the pin 45 inserted in the pin hole 44 is provided with a spline hole 47 through which the internal tooth spline is machined on the opposite side of the pin 45 have.

The fixed shaft means 50 shown in more detail in FIG. 10 is composed of a mount 53 and a mount spindle 55 protruding from the mount 53. A plurality of bolt holes 51 are provided in the mount 53 so as to be bolted to a side surface of the tank where the wheel 3 is located. A hydraulic oil pipeline 57 is formed at the central axis portion of the mount spindle 55 and the bearings 26 shown in Fig. 6 are installed on the bearing mounting surfaces 59 and 61 at the upper and lower ends of the cylindrical protruding portion. An external tooth spline 63 is formed on the circumferential surface between the bearing mounting surfaces 59 and 61 of the mount spindle 55 so as to be matched with the internal tooth spline formed in the spline hole 47 of the crank portion 49.

Accordingly, the mount spindle 55 is the center of rotation of the housing block 20 which rotates up and down in accordance with the upward / downward movement of the view wheel 3, since the crank portion 49 is fixed at a predetermined angle without changing the rotational phase .

However, in the case of the flat plate-like mount 53, when the shaft hole 21 of the housing block 20 has the edge portion 24 protruded as shown in Fig. 6, as another embodiment, An allowance groove 65 of an appropriate depth may be formed in the annular portion where the surface 59 and the spindle 55 abut.

The damper 70, which is shown in more detail in Figs. 12 to 16, constitutes a normal hydraulic pressure transmitting circuit in a steady state, and constitutes a hydraulic shock absorber circuit which serves both as hydraulic pressure and buffer when abnormal high pressure acts, And a relief valve 77 which is mounted in the manifold 73. The manifold 73 is provided with a manifold 73, 12, the manifold 73 is fastened to the side of the housing block 20 with a bolt that is coupled to the bolt hole 74. As shown in Fig.

A plug 76 is inserted into the upper end of the hydraulic chamber 71 and a cylindrical projection 94 into which the relief valve 77 is inserted is projected downward. A guide 87 is inserted into the hydraulic chamber 71 so as to be aligned with the plug 76 and the guide 87 is engaged with the engaging jaw 85 in the inside of the hydraulic chamber 71. Hydraulic oil holes 88 and 88 'and 92 and 92' are opened at the middle and lower ends of the guide 87, respectively. The guide 87 is slidable in the vertical direction, And a spindle valve 75 which is urged upward by a spring 84 is inserted and mounted.

The valve 75 is formed with a head portion 89 at the lower end and a narrowed portion 93 is machined at the lower edge portion of the guide 87 contacting the inclined surface 91 of the lower end head portion 89 . A recess 90 is formed between the spindle 75 and the circumferential surface of the hydraulic chamber 71. The spindle 90 is connected to the upper end of the spindle 90 via the spindle 81 and the hydraulic chamber 71 The orifice 80 is passed through.

The porcelain flow path 81 communicated with the hydraulic chamber 71 by the orifice 80 is formed in a pile shape and includes an upper flow path 81-1, a lower flow path 81-2, and a longitudinal flow path 81 -3). Since the flow paths 81-1, -2 and -3 are formed through the wall surface of the manifold 73, the plug 82 is sealed at the ends thereof.

Fig. 14 shows a section cut along the line BB in Fig. 16, on which a rebound channel 83 in the form of an inverted pillar is formed. The upper flow path 83-1 is connected to the recess 90 of the hydraulic chamber 71 and the end portion of the flow path 83 is sealed by the plug 86. [ A relief valve 77 is inserted into the relief valve chamber 95 formed in the lower flow path 83-2 connected to the upper flow path 83-1 through the longitudinal flow path 83-3, A guide 96 serving as a seal and a guide for the relief valve 77 is inserted at the end of the guide hole 83-2. An inclined end surface of a relief valve 77 which is pressed by a spring 97 in a steady state is seated on a valve seat portion 98 of the guide 96. An orifice 99 .

15 shows a section cut along the CC line in Fig. 16, which shows that the upper and lower end openings 77 and 79 are formed on the mounting surface of the housing block 20 of the manifold 73 have. The upper opening portion 77 communicates with the upper portion of the hydraulic chamber 71 through the hydraulic oil hole 88 and the lower opening portion 79 communicates directly with the lower portion of the hydraulic chamber 71.

As another embodiment of the present invention, there is an oil pressure pendulum device 100 integrated with an arm cylinder for a tank as shown in Fig. The suspension device 100 according to this embodiment has the same configuration as that of the first embodiment except for the housing block 120.

The arm portion 133 of the housing block 120 according to the second embodiment is provided with a through hole 127 and an intermediate blind hole 129 as well as a hole 130 closed at the lower end, . The top through hole 127 and the stopping closure 129 form an upper chamber 111 and an intermediate chamber 113, respectively. And the lower end chamber 130 is sealed with an airtight plug 134. The nitrogen gas supplied from the nitrogen filling port 138 through the orifice 136 is supplied to the lower end chamber 114 thus formed, And the intermediate chamber 113 and the lower chamber 114 are connected to each other through the communication passage 140 and serve as one chamber so that the volume of the nitrogen chamber can be increased.

Yet another embodiment of the present invention is shown in Fig. As shown in the drawings, the arm cylinder-integrated hydraulic pressure suspending device 200 for a tank according to the third embodiment of the present invention corresponds to most of the configuration of the suspension device 1, 100 of the first embodiment or the second embodiment, That is, the hydraulic oil circulation means, that is, the hydraulic oil flow chamber 270 is mounted in place of the damper 70, that is, the buffer means. Accordingly, the hydraulic pressure suspension device to which the hydraulic oil flow chamber 270 is coupled is mounted on the view wheel and only acts as a spring.

This hydraulic oil flow chamber 270 is fastened by a bolt which is coupled to a bolt hole 275 penetrating the side of the housing block so as to be fluidly connected with the piston cylinder structure of the housing block, like the damper 70 of the first embodiment. The manifold 270, which forms the body of the hydraulic oil flow chamber 270, has a hydraulic chamber 271 opened in the longitudinal direction of the body. A sealing plug 276 is press-fitted in the upper opening of the chamber 271 and an upper flow path 272 communicating with the upper chamber of the first or second embodiment is provided below the plug 276, A lower flow path 274 communicating with the lower end chamber 13 in the case of the first embodiment and the intermediate chamber 113 in the case of the second embodiment is formed parallel to the upper flow path 272 below the upper flow path 272 As shown in Fig.

The arm cylinder-integrated hydraulic pressure suspending device for a tank according to the present invention has the configuration as heretofore described, and performs suspension operation of the wheel as follows.

19, the housing block 20 of the suspension device 1 according to the first embodiment is configured such that the tank is in the stopped state or the tank running 1, a line connecting the center point of the mount spindle 55 and the center point of the road wheel spindle 7, that is, the axis of the suspension device 1 is inclined downward by about 30 degrees with respect to the horizontal plane, It is. This state is referred to as a static state and the piston 15 and the floating piston 17 are positioned at the right side of the center of the upper chamber 11 and the center of the lower chamber 13 respectively, 15 and the floating piston 17 are filled with hydraulic fluid and the left side of the floating piston 17 is filled with a gas filled with nitrogen gas.

20 shows the full jounce state of the suspension device 1. In Fig. In this state, the axis of the suspension device 1 is inclined upward by about 18 degrees with respect to the horizontal plane, and the view wheel 3 is maximally raised from the side of the vehicle body of the tank. The piston 15 is located at the right end of the upper chamber 11 and the floating piston 17 is located at the left end of the lower chamber 13.

Finally, in the full rebound state as shown in FIG. 21, the suspension device 1 is such that the view wheel 3 is maximally distant from the tank body and the inclination angle of the axis with the horizontal surface is approximately 60 . At this time, the piston 15 is located at the left end of the upper chamber 11, and the floating piston 17 is located at the right end of the lower chamber 13.

19, when the upward load is gradually applied to the wheel 3 from the road surface, the housing block 20 rotates counterclockwise to the full-surned state shown in Fig. The piston 5 connected to the connecting rod 43 is connected to the upper end of the upper end of the upper chamber 11 To the right side.

The pressurized hydraulic oil flows into the hydraulic chamber 71 of the damper 70 through the hydraulic oil hole 88 shown in FIG. 15 in detail through the screw cap 31 shown in FIG. The inflow pressurized oil escapes to the recessed portion 90 through the opposite hydraulic oil hole 88 'and the hydraulic oil holes 92 and 92' shown in FIG. The hydraulic fluid delivered to the upper flow path 81-1 through the concave portion 90 flows into the lower portion of the hydraulic chamber 71 through the longitudinal flow path 81-3 and the lower flow path 81-2. Here, hydraulic oil flows into the lower end chamber 13 of the housing block 20 through the lower opening 79 shown in Fig. 15, and pressurizes the flotation piston 17 to the left end. At this time, the hydraulic oil applied to the rebound passage 83 acts on the valve 77 through the orifice 99 of the relief valve 77, so that the valve 99 can not be moved and is shut off at this point.

Therefore, when the wheel 3 is returned from the jawless state to the steady state resting on the flat surface, the expansion and repulsion force of the nitrogen gas, which is compressed by the floating piston 17 in the lower chamber 13, The suspension device 1 is resiliently returned to the original state.

The pressure of the hydraulic oil abruptly increases along the inclined surface of the head portion 89 of the spindle valve 75 and the diameter of the edge portion of the guide portion 87 is increased, The downward pressing force is generated by the difference in sectional area due to the spring 93, and the spring 84 is compressed while the spindle valve 75 is pushed downward. The hydraulic fluid immediately flows into the lower portion of the hydraulic chamber 71 and flows into the lower end chamber 13 of the housing block 20 without passing through the spindle passage 81. [ Through this process, the hydraulic oil, which has suddenly increased in pressure in the upper chamber 11, acts on the lower chamber 13 in a gentle state.

On the other hand, when the vehicle body of the tank is gradually raised upward from the wheel 3 in the stopped state shown in Fig. 19, the housing block 20 rotates clockwise to the fully rebound state shown in Fig. At this time, the piston 5 connected to the connecting rod 43 sucks the hydraulic oil filled in the upper chamber 11 to the left.

The hydraulic fluid filled in the lower chamber 13 flows along the reverse oil passage of the hydraulic oil in the jaw state, that is, in the lower portion of the hydraulic chamber 71, the lower oil passage 81-2, the longitudinal oil passage 81-3, And is supplied to the upper chamber 11 through the upper portion of the hydraulic chamber 71 via the upper flow path 81-1.

Therefore, in this case as well, when the wheel 3 returns from the rebound state to the stop state, the hydraulic oil is sucked by the piston 15 due to the shrinkage attraction force of the hydraulic oil in the upper chamber 13, To return to the lower chamber 13, so that the suspension device 1 can be resiliently returned to its original position.

However, even in this case, when the vehicle body rapidly rises from the view wheel 3 to become a sudden rebound state, the pressure of the hydraulic oil exiting the housing block 20 also rises and reaches the lower flow path 83-2 of the rebound flow path 83 It takes high pressure. As a result, the relief valve 77 is pushed to the rear of the valve chamber 95 along the guide surface of the guide plug 96 while compressing the spring 97. The hydraulic oil thus introduced flows through the longitudinal oil passage 83-3 and the upper And reaches the upper portion of the hydraulic chamber 71 via the flow path 83-1. The hydraulic fluid is returned to the upper chamber 15 through the hydraulic oil hole 88. Accordingly, the suspension device 1 smoothly returns to the stopped state without a shock due to the sudden pressure rise through the depressurizing action of the relief valve 77 .

The operation of the suspension device 100 according to the second embodiment will now be described with reference to FIG. 5, which shows that the suspension and rebound movement of the suspension device 1 according to the present invention is performed.

This suspension device 100 is shown in FIG. 17 and has a working relationship with the suspension device 1 according to the first embodiment. A nitrogen chamber 114 is additionally installed below the stop chamber 113 serving as the suspension unit 1 of the lower chamber 13 and a sufficient amount of nitrogen gas is supplied to the intermediate chamber 113 through the communication channel 140. [ The nitrogen charging capacity in the chamber 113 is increased, so that the load applied to the housing block 120 at the time of jaw or rebound, that is, the load of the tank body, can be increased.

Next, the operation of the third embodiment of the suspension device 200 according to the present invention will be described as follows.

18, a hydraulic oil flow chamber 270 is formed in the upper chamber 11, 111 and the lower chamber 11, in place of the damper 70 of the suspension device 1, 100 according to the first or second embodiment, Or bolt holes 275 penetrating through the sides of the housing block 20 to communicate with the stop chambers 13,113. This hydraulic oil flow chamber 270 does not have a shock absorbing means such as a relief valve 77 that utilizes the elastic force of the spring 97 or the spindle valve 75 that uses the elastic force of the spring 84, The upper and lower flow passages 272 and 274 which are opened above and below the hydraulic chamber 271 do not have the function of relieving the pressure rise and the nitrogen gas generated in the upper end and the lower end or the intermediate chamber of the housing block 20 It only serves to transfer the pressure to the other chamber.

Therefore, when the suspending device 200 returns to the rest state in the complete or full rebound state, the housing blocks 20 and 120 can also be resiliently returned to the original position by the original restoring force of the nitrogen gas that has been compressed or expanded inside .

As described above, according to the arm cylinder-integrated hydraulic pressure suspending device for a tank according to the first embodiment of the present invention, by performing the function of a conventional tank view wheel supporting arm by the housing block of the suspending device, The weight and the mounting volume can be reduced, and the space available in the tank can be increased while maintaining the durability of the wheel support. The space thus generated can be used as a storage place for ammunition or a fuel tank, so that the weight of the tank itself is reduced while the firepower or range of travel is increased, ultimately improving the maneuverability of the tank with respect to the weight.

According to the second embodiment of the present invention, since the nitrogen chamber is additionally provided, the nitrogen gas capacity in the housing block is increased to increase the pressure of the fluid acting on the housing block due to the increase in the load of the tank, It is possible to apply the suspension device regardless of the weight of the tank by preventing the buffering and rebound performance from being deteriorated.

According to the third embodiment of the present invention, the damper of the suspension device according to the first embodiment or the second embodiment can be replaced with a hydraulic oil flow chamber for simply passing hydraulic oil, thereby significantly reducing the manufacturing cost of the suspension device Therefore, the manufacturing cost of the tank can be reduced by applying the hydraulic pressure suspending device, which only acts as a spring, at the portion where the damper effect is insufficient, such as the hydraulic pressure suspending device mounted at the middle portion of the tank.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Anyone who can afford it will know.

Claims (15)

(20) in which a reciprocating means (10) for generating a hydraulic pressure is formed inside and in which a road wheel spindle coupling portion (5) for fixing and supporting a view wheel (3) is attached to the outside, A link means 40 for transmitting the motion of the exercise means 10 to the motor-driven housing means 20; a link means 40 for rotating the motor-driven housing means 20, And a shock absorber (70) fluidly connected to the reciprocating means (10) of the motor-driven and housing means (20) to relieve the abrupt oil pressure when it is generated, characterized in that the tank Hydraulic cylinders integrated hydraulic pressure suspensions. The reciprocating means (10) according to claim 1, characterized in that the reciprocating means (10) comprises an upper cylindrical chamber (11) formed in the interior of the housing means (20) and a lower cylindrical chamber (13) formed below the upper cylindrical chamber (11) A piston 15 connected to the link means 40 so as to reciprocate right and left in the upper chamber 11 and a piston 15 reciprocating right and left in the lower chamber 13, (17). ≪ RTI ID = 0.0 > 8. < / RTI > The motorcycle according to claim 1, wherein the transmission and housing means (20) has a shaft hole (21) for inserting and mounting the fixed shaft means (50) therethrough, the link means (40) A through hole 27 for forming the upper chamber 11 and a blind hole 29 for forming the lower chamber 13 are opened inside the hub portion 25, And an arm portion 33 having a threaded cap 31 screwed to one end of the clogged hole 27 and 29 for smooth fluid connection with the buffer means 70. [ Tank arm cylinder integrated hydraulic pressure suspension device. 4. An oil pressure suspensions unit with a cylinder for a tank according to claim 3, wherein the edge portion (24) of the shaft hole (21) of the housing block (20) is thicker than other portions. The load block according to claim 1 or 3, wherein the rod wheel spindle fastening part (5) attached to the end of the arm part (3) of the housing block (20) has a bottom surface which is a mounting surface to the housing block Wherein a mounting hole (35) is passed through the center axis of the tongue and a load wheel spindle (7) of the wheel (3) is exposed to the mounting hole (35) Hydraulic cylinders integrated hydraulic pressure suspensions. 4. The apparatus of claim 3, wherein the housing block (20) is in fluid communication with an exposed portion of the shaft (21) of the fixed shaft means (50) and attached over the front and top surfaces of the housing block (20) And a hydraulic oil supply pipe (22) adapted to supply hydraulic oil to the tank. The connecting device according to claim 1, wherein the link means (40) comprises a connecting rod (43) which is ball-and-socket coupled to the piston (15) of the cylinder piston structure (10) by a spherical head A crank portion 49 joined to the other end of the connecting rod 43 by a pin 45 and having a spline hole 47 formed by machining an internal tooth spline on the opposite side of the pin 45, And an oil pressure sensor for detecting the oil pressure of the tank. 2. The apparatus according to claim 1, wherein the fixed shaft means (50) comprises a mount (53) having a plurality of bolt holes (51) and a mount spindle (55) protruding from the mount (53) A hydraulic oil channel 57 is formed at a central axial portion of the mount spindle 55. Bearing mount faces 59 and 61 are formed at both ends of the mount spindle 55, And an external tooth spline (63) is formed between the inner cylinder and the outer cylinder. 9. The tank lock cylinder according to claim 8, wherein a circular clearance groove (65) surrounding the mount spindle (55) is engraved in a portion where the bearing mounting surface (59) Integral hydraulic pressure suspensions. The hydraulic shock absorber according to claim 1, wherein the buffer means (70) comprises a manifold (73) having a hydraulic chamber (71) and a plurality of flow paths formed therein, A valve (75), and a relief valve (77) inserted and mounted in the flow passage. 11. The method according to claim 10, wherein the manifold (73) has an upper end and a lower end, respectively, at which the screw caps (31, 32) of the upper and lower chambers (11, Openings 77 and 79 are formed in the contact surface with the housing block 20 and a damper passage 81 and a rebound passage 83 for fluidly connecting the upper and lower portions of the hydraulic chamber 71 are formed Wherein the tank is provided with a cylinder-shaped hydraulic pressure sensor. The hydraulic control apparatus according to claim 10, wherein the spindle valve (75) is positioned along a guide (87) which is fixed by a spring (84) and fixed by a stopper (85) protruding from the upper portion of the hydraulic chamber And a diameter enlarged portion 93 is formed at a lower edge portion of the guide 87 contacting the inclined surface 91 of the lower end head portion 89 in which the spring 84 is inserted Tank arm cylinder integrated hydraulic pressure suspension system. 11. The apparatus according to claim 10, wherein the relief valve (77) comprises a spring (97) along an inner circumferential surface of a guide plug (96) fitted in a relief valve chamber (95) inside a cylindrical projection (94) formed on the rebound passage (83) So that the hydraulic cylinder is slidable in the left and right direction. (120) in which a rod-and-wheel spindle coupling part for fixedly supporting a view wheel is attached to the outside, and a motion of the reciprocating motion means is connected to the motor-combined housing means (120), a fixed shaft means which becomes the center of rotation of the link means and the power combining and housing means (120) and to which these means are coupled, and a fixed shaft means which is connected to the reciprocating means of the power transmission and housing means And a shock absorbing means for relieving a sudden pressure of the fluid when the fluid is connected to the tank. In the hydraulic cylinder type integral type hydraulic suspension system for a tank, the transmission and housing means (120) forms an upper chamber (111) The through hole 127, the clogged hole 129 forming the intermediate chamber 113 and the clogged hole 130 forming the nitrogen chamber 114 are open, The intermediate chamber 113 and the lower chamber 114 are connected to each other by a communication passage 140 and are a housing block including the arm portion 133 Cylinder type integrated hydraulic pressure suspension device for tank. A motor / housing unit having reciprocating means for generating a hydraulic pressure therein and having a rod wheel spindle coupling portion for externally mounting a wheel wheel for fixedly supporting the wheel, and a transmission mechanism for transmitting the motion of the reciprocating means to the motor- Link means and a fixed shaft means which is a rotation center of the link means and the power combining and housing means and to which these means are coupled and mounted, characterized in that the tank- And a hydraulic oil flow chamber 270 formed of a manifold 273 having a hydraulic chamber 271 and flow-in / out upper and lower flow passages 272 and 274 formed therein for transferring the generated oil pressure, Tank arm cylinder integrated hydraulic pressure suspension device.