Stand for disassembly of hydraulic cylinders

 

(57) Abstract:

Usage: in the repair of hydraulic cylinders, such as construction machines and mechanisms. The inventive horizontal frame 1 with the guides still mounted hour 3. Capture 4 for housing the parsed cylinder 15 is made movable and provided with a rod 5, a locking finger 14 in the rack 3. The power cylinder 8 made telescopic and double acting, mounted on the carriage 7, and the rod it is attached to the carriage 9 with optional rolling stand 10 to the mounting rod 18 parsed cylinder 15. Intermediate telescopic element 20 of the hydraulic cylinder 8 is provided with an additional carriage 21. Coaxially with the cylinder 8 has an additional power cylinder 11. Hour 10 equipped with a trailer truck 39 prism 40 for installation and mounting rod 18. Prism 6 for installation and mounting of the hydraulic cylinder 15 is installed with the possibility of rearrangement. Prism 6 and 40 is made with a height-adjustable cradle. 3 C.p. f-crystals, 10 ill.

The invention relates to a device for disassembly mechanisms and can be used for disassembly and Assembly of hydraulic cylinders in the process of repair, for example hydraulic cylinders article in the form of a frame and a movable frame installation mechanism and move one of the parts to be assembled, for example, the rod of the hydraulic cylinder, includes a cart with horses and drive, and the installation mechanism other collect details, such as the cylinder barrel, and mechanism of mutual orientation of the parts to be assembled with the actuator vertical movement [1]

Such a stand cannot be used for disassembly of hydraulic cylinders and their integrity tests.

It is also known a device for the Assembly and fitting of parts like shaft sleeve containing a frame with a fixed column and a focus to collect the details, the prism to install one of the parts to be assembled, such as bushings, power cylinder to move the cart lodgement for another collectible items, such as shaft [2]

Such a device may not be used for disassembly of hydraulic cylinders.

Closest to the present invention is a device (stand) for disassembly of the hydraulic cylinders with the rod and piston containing a horizontal frame with a fixed stand with grip for attaching the eyelet body parsed cylinder, a cart with a hydraulic power cylinder that moves on the frame, a prism for fixing the parsed cylinder [3]

This stand effort to repressive when izvlecheny the h the medium of the prism 5, having polygonati for clamping cylinder housing, in the form of staples 8.

Such clamps over the smooth cylindrical surface buildings unreliable, given that when disassembling the hydraulic cylinders heavy construction equipment force repressive reaches 100 HPS. In addition, the prism 5 is working on bending and should be quite bulky and heavy.

On this stand, it is impossible to disassemble a hydraulic cylinder with a stroke greater than the stroke of the piston in the power cylinder, especially if the parsed cylinder has Zakus" strip the piston when the force repressive is valid throughout the length of stroke of the rod.

The stand can not be used for the Assembly of the cylinders after the repair, because there are no supporting and centering device for the rod. The absence of such devices makes inconvenience and disassembly of the cylinder, because as the piston rod from the housing may fall rod and damage.

No hydraulic testing for tightness of the cylinder after the repair, i.e., a well-known stand narrowly specialized device with limited functionality.

The essence of the invention is that known to stand for disassembly helico with hydraulic power cylinder, double acting, mounted in the guide frame can move, as well as the prism for placing and fixing the parsed cylinder and grip stem of the latter, provided with a carriage mounted in the guide frame can move, that is mounted on the carriage is advanced, stand, carrying grip for rod parsed cylinder located coaxially with the main cylinder, an additional hydraulic power cylinder, double acting, the body of which mounted on the frame, and a rod connected to the casing of the main power cylinder, a gripper for fixing it to the housing parsed cylinder with fixed therein by a rod that is hosted by a free end of the main rack, the main power cylinder made telescopic and is installed together with an additional hydraulic cylinder inside the frame, and the inner rod is hinged to the carriage, while the bed slideways made in the form of horizontal shelves on the side walls of the frame, and the rod and prism, which is located on the frame, installed with the possibility of adjusting movement relative to, respectively, of the main stand and the base and fixing in the positions relative to polenta, installed in the guide frame to move.

The stand is supplied installed with the possibility of moving into directing bed trailer truck and mounted on the prism for installation and fixing of shaft disassembling the cylinder, with the trailer Dolly is connected to the additional stand by flexible connection made, for example, in the form of a regulating circuit length. Prism for placing and fixing the parsed cylinder and prism for stock recently made adjustable in height.

The possibility of attachment parsed cylinder for the eyes of the rod and the housing provides repressive details with any force, for example, up to 100 HPS, which takes place in practice in the case of Zakus" gasket seal piston or rod in the housing.

This embodiment of the stand creates the technical result consists in the fact that the functionality of the stand to grow quickly due to the possibility of disassembly of a wide range of cylinders of different sizes both in diameter and construction length, and also due to the possibility of reassembly cylinder after repair and testing them on hermetic stationary rack frame, as well as the presence of another grip for rod parsed cylinder in additional rolling racks attached to the carriage is driven by a power telescopic hydraulic cylinder, allows for the disassembly and Assembly of hydraulic cylinders increased construction length. This also contributes to the execution of a cylinder of the telescopic support carriage at an intermediate telescopic element (cylinder). In addition, disassembly of the cylinders increased length became possible due to the presence of an additional power cylinder, coaxial with the telescopic hydraulic cylinder, and having adjustable on the frame of reference of the prism.

Assembly of hydraulic cylinders on the stand was due to the fact that the power cylinder is made double-acting, as well as due to the presence of the rolling bearing for the piston rod in the form of a prism mounted on the towed truck to the mobile rack.

The execution of the reference prisms movable in the vertical direction provides the necessary accuracy of the alignment rod and the cylinder barrel during Assembly and can be installed on stand-cylinders of different diameters.

Execution directing bed is the Ktsia the bed.

The presence of the carriage at an intermediate telescopic element of a cylinder eliminates the possibility of bending the axis of the telescopic cylinder when disassembling the cylinder and the jamming of the piston.

The presence trailers have additional rolling racks with prism for installation of the rod and securing it simplifies the disassembly of the cylinder and the Assembly because the free end of the rod with a piston is secured from falling, and when the Assembly is centered with the body.

In Fig.1 shows a General view of the stand in the original position; Fig.2 is the same, in the end removing the rod from the housing; Fig.3 is a section AA of Fig. 1; Fig. 4 section B-B of Fig.1; Fig.5 cross-section In Fig.1; Fig. 6 section G-G of Fig.1; Fig.7 section D-D of Fig.1; Fig.8 - section e-E of Fig.4; Fig.9 the node I in Fig.2; Fig.10 section F W Fig.9.

Stand for disassembly of hydraulic cylinders includes a horizontal frame 1 with the flanges 2 having curved inside edge, for example, installed in parallel h-beams of channel or I-beam, a stationary rack 3, the movable gripper 4 with the rod 5, the prism 6, the carriage 7 to the power cylinder 8, the carriage 9 with the movable stand 10, as well as additional power hydrocerin the Naya hour 3 installed on the bed in her butt and is related to the grip 4 by means of rod 5, swap in the hole racks with varying degrees of departure. The rod is equipped with a number of holes 13, for which it is fixed in the rack finger 14.

The movable gripper 4 is rigidly attached to rod 5 is mounted on the frame with the possibility of axial movement. This shelf beams 2 are guides for engagement, the carriage 7 to the power cylinder is made in the form of a carriage with rollers moving along the guides of the bed.

Parse the hydraulic cylinder 15 is mounted in the prism 6 and attached thereto a hinged bracket 16, and the cylinder body for the eyelet is attached to the grip 4 finger 17, the shaft 18 parsed cylinder for the eyelet is fastened to the movable rack 10 by means of the finger 19.

The power cylinder 8 of the telescopic type double acting with trolley 7 and the carriage 9, as well as an additional power cylinder 11 is installed inside the frame. This shelf beams 2 of the frame are upper and lower guides for the rollers of the carriages 7 and 9.

The intermediate cylinder (telescopic element) 20 of a cylinder provided with a support 21 in the form of a carriage with rollers, also moving in the direction of the frame, and the eyelet 22 of the piston rod of the power cylinder is pivotally attached to the frame 1 at the end of her finger 24 for the eyelet 25 of the housing, on the other hand, he also articulated finger 26 attached to the eyelet 27 of the stem to the fork 28 on the housing of the power cylinder 8.

Prism 6 for installation and mounting parsed cylinder 15 contains lodgement 29, to which the hinge is attached to the two sides of the thrust 30, the other ends of which are articulated to the nuts 31, moving the clamping screw 32 with right and left threads, and the screw attached to the plate 33 by means of bearing housings slide 34.

The prism is fixed relative to the frame by means of a clamp 35, interacting with 2 shelves below.

The clamp is made movable in the vertical direction and is moved by means of screws 36 and nuts 37, mounted in the clamp and is threaded on the guide rod 38, the lodgement 29.

Movable stand 10 is equipped with trailer truck 39 for installation support rolling bearing 40 for the rod 18 containing the prism 41 and the bracket 42. Bearing mounted on the carriage for movement in a vertical plane by means of screws 43, attached to the prism 41, and nuts 44, attached to the cart.

Rollers 45 trolleys are moved in the guide rails 46, and the trolley is connected with the stand 10 is Jena chain on the hook 48 of the rack 10.

The dimensions of the frame length is chosen from the condition of full output from the cylinder barrel 15 of the rod 18 with the cover 49 and the plunger 50.

The stand works as follows.

Before installing on the stand of the hydraulic cylinder 15 for disassembly his stand lead to the initial position and prepare to work in the following order.

The power cylinders 8 and 11 result in a fully compressed position, and the gripper 4 with respect to the rack 10 rearrange and fix the rod 5 in the rack 3 with a finger 14 on the basis of the actual distance between the centers of the holes in the lugs of the cylinder 15, and this distance may be equal to the construction length of the cylinder or has any other intermediate value in the case of Zakus" seal of the piston or rod. The prism 6 is moved on the frame 1 so that the repaired cylinder relied on lodgement 29 in the zone closer to the cover 49, i.e., on the output side of the rod 18, and in this position the prism is fixed relative to the frame, to which nuts 37 presses the prism 35 to guides 2.

The hydraulic cylinder 15 is placed on the prism 6, the body of his clamp bracket 16 and a screw 32 to regulate the position of the hydraulic cylinder coaxial with the axis of the finger 14 of the grip 4. Lock cylinder for eyes corps finger 14.

Include the power cylinder 8 and the piston rod 22 moves the carriage 9 with the stand 10 to the right. When the rod 18 extends from the cylinder barrel 15 and as to approximately 2/3 of its length is fixed on the cradle 40 trailers 39 in the following order.

The truck tilted to the side from the rack 10 to the stop of lodgement 41 in the cover 49 of the cylinder and attached a flexible connection 47 to the rack 10 in a pre-tensioned state.

Include in the work RAM 8, and, if necessary, the hydraulic cylinder 11 and finally vyrisovyvaet the rod to exit from the housing of the piston 50.

For Assembly of the hydraulic cylinder 15 case it is placed on the prism 6 and attach the clevis to the grip 4. While the grip and the lens must be set to the end of the disassembly of this cylinder. Special attention is paid to the parallelism of the axis of the cylinder guides 2.

Install and secure the rod 18 with the cover 49 and the plunger 50. This rod should be fixed by a bracket 42 to the prism, and the chain 47 is released. When the trolley moves along rod.

The power cylinders 8 and 11 reversiruyut and if you pull them rods, the rod 18 is collected cylinder must enter into the body with minimal effort. The oil pressure in the power and road-building machinery; Tutorial for PTU M; the High. SHK. 1991, S. 222.)

In the case of increasing the pressure further Assembly is stopped, the pressure in the cylinder is discharged to identify the reasons for its increase and the elimination of Zakusov or re

Date of expiration of the patent:01.12.1995

Number and year of publication of the Gazette:30-1998

Notice published by:27.10.1998        


horizontal bed with rails, permanently mounted on a rack, cart with hydraulic power cylinder, double acting, mounted in the guide frame can move, as well as the prism for placing and fixing the parsed cylinder and grip stem of the latter, characterized in that it is provided with a carriage mounted in the guide frame can be moved, mounted on the carriage for more resistant carrying grip for rod parsed cylinder located coaxially with the main cylinder for more power cylinder double acting, the body of which mounted on the frame, and a rod connected to the casing of the main power gidley, posted by free end of the main rack main power cylinder made telescopic and is installed together with an additional hydraulic cylinder inside the frame, and the inner rod is hinged to the carriage, while the bed slideways made in the form of horizontal shelves on the side walls of the frame, and the rod and prism, which is located on the frame, installed with the possibility of adjusting movement relative to, respectively, of the main stand and the base and fixing in the positions relative to the last.

2. Stand under item 1, characterized in that it is provided with an additional carriage to accommodate the inner shaft of the main power cylinder mounted in the guide frame to move.

3. Stand on PP. 1 and 2, characterized in that it has installed with the possibility of moving into directing bed trailer truck and mounted on the prism for installation and fixing of the rod parsed cylinder, these trailer truck connected with additional stand by flexible connection made, for example, in the form of chain adjustable length.

4. Stand on PP. 1 3, otlichie height-adjustable.

 

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