Hydraulic cylinder body separating device

Abstract

The utility model provides a hydraulic cylinder body separating device. The hydraulic cylinder body separating device comprises a fixed base; the bearing seat is arranged on the fixed base; the connecting mechanism is arranged on the fixed base in a sliding mode so as to drive the stand column to be separated to move; the hydraulic separation oil cylinder is fixedly arranged on the fixed base; a hydraulic telescopic rod of the hydraulic separation oil cylinder is connected with the connecting mechanism so as to drive the connecting mechanism to reciprocate; the bearing mechanism is movably arranged on the fixed base; the extending direction of the hydraulic telescopic rod driven by the hydraulic separation oil cylinder is the same as the extending and separating direction of the to-be-separated stand column from the to-be-separated cylinder body. According to the utility model, the extension state of the hydraulic telescopic rod is utilized to drive the to-be-separated stand column to extend out and be separated from the to-be-separated cylinder body, so that the extension state of the hydraulic telescopic rod is no longer a no-load state, and the resistance of the to-be-separated stand column is overcome by utilizing the extension state; effective pulling force on the to-be-separated stand column is large through the stretching-out state, and efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinder disassembling equipment, in particular to a hydraulic cylinder separation device. Background Art

[0002] In recent years, with the rapid development of my country's coal mine production capacity, the application of hydraulic supports in comprehensive mining work has become more and more extensive, and the requirements for the initial support force and working resistance of hydraulic supports have become increasingly greater. Relatively speaking, the requirements for their working safety, reliability and economy have also become increasingly higher. The hydraulic support column is the main load-bearing component that bears the pressure of the roof, and the cylinders and pistons of the hydraulic support are required to have strict sealing performance and strength. During the comprehensive mining production process, the cylinders and pistons of the hydraulic support have many movements and are subject to great force. When the cylinder piston seal, guide sleeve seal or cylinder barrel wear is out of tolerance, the double telescopic column of the hydraulic support will not be able to reach the working resistance. Therefore, the hydraulic cylinders on the hydraulic support need to be separated, disassembled and maintained regularly.

[0003] In the prior art, there are usually two ways to separate the hydraulic cylinder body. One way is to inject high-pressure liquid into the gap between the cylinder body to be separated and the column to be separated (for example, a piston), and separate the two by the hydraulic pressure of the high-pressure liquid (that is, pull the column to be separated from the cylinder body to be separated). However, due to the flow limit in the coal mine, this method takes a long time and wastes a lot of emulsion. Another way is to fix the cylinder body to be separated, and use an overhead crane or a hydraulic pulling device to fix the column to be separated. The overhead crane or the hydraulic pulling device provides a pulling force to pull the column to be separated out of the cylinder body to be separated. In this way, at the moment when the column to be separated and the cylinder body to be separated are separated, the overhead crane or the hydraulic pulling device will produce a large swing, which poses a great safety hazard and is prone to accidents.

[0004] The existing hydraulic pulling device usually adopts a mode of being opposite to the column to be separated, that is, the piston hydraulic rod of the hydraulic pulling device is connected to the column to be separated after being extended, and the column to be separated is pulled and separated from the cylinder body to be separated when it is retracted; such a configuration makes it usually in an unloaded state when the piston hydraulic rod is extended, and bears the resistance of the column to be separated when the piston hydraulic rod is retracted; however, compared with the parameters when the hydraulic cylinder is extended, the effective pulling force of the column to be separated when the piston hydraulic rod is retracted in the existing hydraulic pulling device is smaller and the efficiency is lower; therefore, if the column to be separated and the cylinder body to be separated are blocked, the existing hydraulic pulling device has the problems of low cylinder body separation efficiency and low efficiency due to pulling force. At the same time, the extended length of the piston hydraulic rod is relatively long (about 2500mm) during operation, and there is a lack of effective support in front of the piston hydraulic rod, which makes the piston hydraulic rod bend under the action of gravity (that is, a certain degree of deflection), resulting in eccentric wear of the seal between the piston hydraulic rod and the hydraulic cylinder, causing the hydraulic cylinder to fail due to seal damage; and if the hydraulic cylinder is not discovered and repaired in time, it will cause the inner wall of the cylinder body to be stretched and the oil cylinder to be seriously damaged; therefore, the existing hydraulic pulling device has a high failure rate of the hydraulic cylinder, and it needs to be repaired once a quarter on average, and the main thing is to replace the seal between the piston hydraulic rod and the hydraulic cylinder.

[0005] In addition, because the existing hydraulic pulling device is usually placed opposite to the column to be separated, the overall space occupied is relatively large. During the separation process, since both ends of the piston hydraulic rod are subjected to tension, problems such as looseness and deformation may occur between the piston hydraulic rod and the hydraulic cylinder.

[0006] In the prior art, there are some hydraulic pulling devices that can separate the column to be separated from the cylinder body to be separated. For example, CN205927750U discloses a hydraulic support cylinder disassembly device. The hydraulic support cylinder disassembly device includes a cylinder support with a strip groove on the surface, a pulling cylinder with a piston rod, a support frame between the cylinder support and the pulling cylinder, a cylinder baffle between the support frame and the cylinder support, a clamping member, and a hydraulic assembly. The two groove edges of the strip groove are respectively connected to a fixing part; the cylinder baffle is provided with a through hole, and the radial dimension of the through hole is smaller than the radial dimension of the strip groove; the clamping member is fixedly connected to the fixing part; the hydraulic assembly includes a lifting cylinder connected to the lower part of the cylinder support, and the hydraulic assembly provides power for the lifting cylinder and the pulling cylinder. This scheme adopts a method of being opposite to the column to be separated and pulling and separating the column to be separated, which not only occupies a large space as a whole, but also has the problem of low cylinder separation efficiency and inability to separate due to insufficient pulling force. Utility Model Content

[0007] The utility model provides a hydraulic cylinder separation device to solve the problems that the hydraulic pulling device in the prior art not only occupies a large overall space, but also has low cylinder separation efficiency and cannot be separated due to insufficient pulling force.

[0008] In order to solve the above problems, the utility model provides a hydraulic cylinder separation device, comprising: a fixed base; a bearing seat, which is arranged on the fixed base and is used to bear and constrain the cylinder to be separated that cooperates with the column to be separated; a connecting mechanism, which is slidably arranged on the fixed base and detachably connected to the column to be separated to drive the column to be separated to move; a hydraulic separation cylinder, which is fixedly arranged on the fixed base; a hydraulic telescopic rod of the hydraulic separation cylinder is connected to the connecting mechanism to drive the connecting mechanism to reciprocate; a bearing mechanism, which is movably arranged on the fixed base; the bearing mechanism is located between the connecting mechanism and the column to be separated, and is located below the column to be separated to at least bear the column to be separated after being separated from the cylinder to be separated; wherein the direction in which the hydraulic separation cylinder drives the hydraulic telescopic rod to extend is the same as the direction in which the column to be separated extends and detaches from the cylinder to be separated; the connecting mechanism simultaneously bears the connecting end of the column to be separated and the connecting mechanism, and the connecting end of the hydraulic telescopic rod and the connecting mechanism; the hydraulic separation cylinder drives the hydraulic telescopic rod to extend, driving the connecting mechanism and the column to be separated to move away from the cylinder to be separated, so that the column to be separated is disconnected from the cylinder to be separated.

[0009] Furthermore, the fixed base includes a base body and a slide rail fixedly arranged on the base body, and the extension direction of the slide rail is parallel to the direction in which the hydraulic separation cylinder drives the hydraulic telescopic rod to move; the bearing seat can be raised and lowered on the upper surface of the base body; the two sides of the connecting mechanism are matched with the sliding limit of the slide rail, and the bottom of the connecting mechanism is matched with the upper surface of the base body for sliding; the bearing mechanism can be movably arranged on the slide rail and reciprocate along the extension direction of the slide rail; the hydraulic separation cylinder is arranged on the upper surface of the base body and is located below the bearing seat.

[0010] Furthermore, the connecting mechanism includes a connecting base, a connecting piece and a trapezoidal body arranged on the connecting base, the two sides of the connecting base are matched with the sliding limit of the slide rail, and the bottom of the connecting base is matched with the upper surface of the base body in a sliding manner; the upper surface and the lower surface of the trapezoidal body are parallel, and the area of ​​the upper surface is smaller than the area of ​​the lower surface, and the lower surface is fixedly arranged on the connecting base; one side surface of the trapezoidal body is detachably connected to one end of the connecting piece and the hydraulic telescopic rod respectively, and the other end of the connecting piece is detachably connected to the column to be separated; the trapezoidal body simultaneously carries the connecting end of the connecting piece and the trapezoidal body, and the connecting end of the hydraulic telescopic rod and the trapezoidal body.

[0011] Furthermore, the trapezoidal body is a right-angled trapezoidal body, which has an upright side surface perpendicular to the upper surface of the base body and an inclined side surface inclined to the upper surface of the base body, and the upright side surfaces are respectively detachably connected to the connecting piece and the hydraulic telescopic rod; the upright side surfaces and the inclined side surfaces are arranged correspondingly, and the area of ​​the upright side surfaces is smaller than the area of ​​the inclined side surfaces; wherein, projected downward in the vertical direction, the connection between the upright side surfaces and the connecting piece and the connection between the upright side surfaces and the hydraulic telescopic rod coincide; projected downward in the vertical direction, the central axis of the column to be separated and the central axis of the hydraulic telescopic rod coincide.

[0012] Furthermore, the bearing mechanism includes at least one U-shaped support block, the interior of the U-shaped support block has a constraint guide cavity, the bottom wall of the constraint guide cavity is slidably abutted against the column to be separated to support the column to be separated; the side wall of the constraint guide cavity is used to limit the column to be separated.

[0013] Furthermore, the bearing mechanism also includes a moving platform, which is movably arranged on a fixed base; there are multiple U-shaped support blocks, which are arranged on the moving platform at intervals along the axial direction of the column to be separated to follow the movement of the moving platform.

[0014] Furthermore, the motion platform includes a lifting platform, a lifting adjustment component, a motion chassis, a driving motor and a plurality of moving wheels, and a plurality of U-shaped support blocks are arranged at intervals on the lifting platform; the lifting adjustment component is arranged on the motion chassis and carries the lifting platform, and is used to drive the lifting platform up and down; the plurality of moving wheels are rotatably arranged on the motion chassis, and are respectively connected to the driving motor; the driving motor is arranged on the motion chassis, and is used to drive the plurality of moving wheels to rotate; wherein, after the column to be separated is separated from the cylinder body to be separated, the driving motor drives the bearing mechanism carrying the column to be separated to move to a specified position.

[0015] Furthermore, at least a portion of the U-shaped support block is made of wear-resistant rubber material; and / or the bottom wall of the constraint guide cavity is made of metal material, and the roughness of the bottom wall of the constraint guide cavity is not greater than the roughness of the outer surface of the column to be separated.

[0016] Furthermore, the hydraulic cylinder separation device also includes a hydraulic lifting mechanism, which is arranged on a fixed base and carries a bearing seat, and is used to drive the bearing seat to move up and down.

[0017] Furthermore, the bearing seat has a limiting cavity for limiting and carrying the cylinder body to be separated, and the limiting cavity is a U-shaped cavity; the limiting cavity has a first opening and a second opening at both ends in the horizontal direction, respectively, and a third opening above the limiting cavity, the first opening faces the connecting mechanism, and the second opening faces away from the connecting mechanism; the cross-sectional dimension of the first opening along the vertical direction is smaller than the cross-sectional dimension of the cylinder body to be separated along the vertical direction, so as to constrain the cylinder body to be separated from being able to move out of the first opening; the cross-sectional dimension of the second opening along the vertical direction is not smaller than the cross-sectional dimension of the cylinder body to be separated along the vertical direction, so that the cylinder body to be separated can be moved out of or into the second opening; the internal dimensions of the limiting cavity are adapted to the external dimensions of the cylinder body to be separated; the cross-sectional dimension of the third opening along the horizontal direction is larger than the cross-sectional dimension of the cylinder body to be separated along the horizontal direction, so that the cylinder body to be separated can be moved out of or into the third opening.

[0018] The technical scheme of the utility model is applied, and the utility model provides a hydraulic cylinder separation device, comprising: a fixed base; a bearing seat, which is arranged on the fixed base and is used to bear and constrain the cylinder to be separated that cooperates with the column to be separated; a connecting mechanism, which is slidably arranged on the fixed base and detachably connected to the column to be separated to drive the column to be separated to move; a hydraulic separation cylinder, which is fixedly arranged on the fixed base; a hydraulic telescopic rod of the hydraulic separation cylinder is connected to the connecting mechanism to drive the connecting mechanism to reciprocate; a bearing mechanism, which is movably arranged on the fixed base; the bearing mechanism is located between the connecting mechanism and the column to be separated, and is located below the column to be separated to at least bear the column to be separated after being separated from the cylinder to be separated; wherein, the direction in which the hydraulic separation cylinder drives the hydraulic telescopic rod to extend is the same as the direction in which the column to be separated extends and detaches from the cylinder to be separated; the connecting mechanism simultaneously bears the connecting end of the column to be separated and the connecting mechanism, and the connecting end of the hydraulic telescopic rod and the connecting mechanism; the hydraulic separation cylinder drives the hydraulic telescopic rod to extend, driving the connecting mechanism and the column to be separated to move away from the cylinder to be separated, so that the column to be separated is disconnected from the cylinder to be separated.

[0019] The utility model provides a connecting mechanism, so that the direction in which the hydraulic separation cylinder drives the hydraulic telescopic rod to extend is the same as the direction in which the column to be separated extends and separates from the cylinder body to be separated. Different from the existing conventional pull-out separation method, the utility model utilizes the extended state of the hydraulic telescopic rod to drive the column to be separated to extend and separate from the cylinder body to be separated, so that the extended state of the hydraulic telescopic rod is no longer an unloaded state, and the extended state is utilized to overcome the resistance of the column to be separated. Compared with the retracted state of the hydraulic telescopic rod, the effective pulling force of the column to be separated in the extended state is larger and more efficient. Even when the column to be separated is stuck in the cylinder body to be separated, the technical solution of the utility model can still ensure low separation efficiency and avoid the problem of being unable to separate due to insufficient pulling force. By arranging a connecting mechanism to simultaneously carry and support the column to be separated and the hydraulic telescopic rod, The utility model effectively reduces the flexural deformation of the column to be separated and the hydraulic telescopic rod under the action of gravity, avoids the eccentric wear of the seals between the column to be separated and the cylinder body to be separated, and between the hydraulic telescopic rod and the hydraulic separation cylinder, thereby avoiding the problem of failure due to seal damage, and improving the working reliability and service life of the hydraulic separation cylinder; by setting the bearing mechanism, after the cylinder body to be separated and the column to be separated are separated, reliable bearing of the column to be separated is achieved, thereby facilitating the subsequent transportation of the column to be separated with a larger mass; the utility model avoids the use of the existing hydraulic pulling device in a manner opposite to the column to be separated, so that the overall structure occupies less space, reduces the space required for the use of the equipment, and is more suitable for use scenarios with limited space such as underground coal mines; the utility model has a simple structure and reliable operation, and is suitable for large-scale promotion and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0021] Figure 1 A specific structural schematic diagram of the hydraulic cylinder separation device provided in an embodiment of the utility model is shown.

[0022] The above drawings include the following reference numerals:

[0023] 10. Fixed base; 11. Base body; 12. Slide rail;

[0024] 20. bearing seat; 21. limiting cavity; 211. first opening; 212. second opening; 213. third opening;

[0025] 30. Column to be separated;

[0026] 40. Cylinder to be separated;

[0027] 50. Connecting mechanism; 51. Connecting base; 52. Trapezoidal body; 521. Inclined side surface;

[0028] 60. Hydraulic separation cylinder; 61. Hydraulic telescopic rod;

[0029] 70. bearing mechanism; 71. U-shaped support block; 711. constraint guide cavity; 72. motion platform;

[0030] 80. Hydraulic lifting mechanism. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0032] like Figure 1 As shown, the embodiment of the utility model provides a hydraulic cylinder separation device, comprising: a fixed base 10; a bearing seat 20, which is arranged on the fixed base 10 and is used to bear and constrain the cylinder body 40 to be separated that cooperates with the column 30 to be separated; a connecting mechanism 50, which is slidably arranged on the fixed base 10 and is detachably connected to the column 30 to be separated to drive the column 30 to be separated to move; a hydraulic separation cylinder 60, which is fixedly arranged on the fixed base 10; a hydraulic telescopic rod 61 of the hydraulic separation cylinder 60 is connected to the connecting mechanism 50 to drive the connecting mechanism 50 to reciprocate; a bearing mechanism 70, which is movably arranged on the fixed base 10; the bearing mechanism 70 is located at the connecting mechanism The mechanism 50 is between the column 30 to be separated, and is located below the column 30 to be separated, so as to at least carry the column 30 to be separated after being separated from the cylinder body 40 to be separated; wherein, the direction in which the hydraulic separation cylinder 60 drives the hydraulic telescopic rod 61 to extend is the same as the direction in which the column 30 to be separated extends and separates from the cylinder body 40 to be separated; the connecting mechanism 50 simultaneously carries the connecting end of the column 30 to be separated and the connecting mechanism 50, and the connecting end of the hydraulic telescopic rod 61 and the connecting mechanism 50; the hydraulic separation cylinder 60 drives the hydraulic telescopic rod 61 to extend, driving the connecting mechanism 50 and the column 30 to be separated to move away from the cylinder body 40 to be separated, so that the column 30 to be separated is disconnected from the cylinder body 40 to be separated.

[0033] The utility model sets a connecting mechanism 50, so that the direction in which the hydraulic separation cylinder 60 drives the hydraulic telescopic rod 61 to extend is the same as the direction in which the column 30 to be separated is extended and separated from the cylinder body 40 to be separated. Different from the existing conventional pull-out separation method, the utility model uses the extended state of the hydraulic telescopic rod 61 to drive the column 30 to be separated to extend and separate from the cylinder body 40 to be separated, so that the extended state of the hydraulic telescopic rod 61 is no longer an unloaded state, and the extended state is used to overcome the resistance of the column 30 to be separated. Compared with the retracted state of the hydraulic telescopic rod 61, the effective pulling force of the column 30 to be separated is larger and more efficient when the extended state is used. Even when the column 30 to be separated is stuck in the cylinder body 40 to be separated, the technical solution of the utility model can still ensure low separation efficiency and avoid the problem of being unable to separate due to insufficient pulling force. By setting the connecting mechanism 50, the column 30 to be separated and the hydraulic telescopic rod are simultaneously carried and supported. Rod 61 effectively reduces the flexural deformation of the column to be separated 30 and the hydraulic telescopic rod 61 under the action of gravity, avoids the eccentric wear of the seals between the column to be separated 30 and the cylinder body 40 to be separated, and between the hydraulic telescopic rod 61 and the hydraulic separation cylinder 60, thereby avoiding the problem of failure due to seal damage, and improving the working reliability and service life of the hydraulic separation cylinder 60; by setting the bearing mechanism 70, after the cylinder body 40 to be separated and the column to be separated 30 are separated, reliable bearing of the column to be separated 30 is achieved, thereby facilitating the subsequent transportation of the column to be separated 30 with a larger mass; the utility model avoids the existing hydraulic pulling device adopting the method of being opposite to the column to be separated 30, so that the overall structure occupies less space, reduces the space required for the use of the equipment, and is more suitable for use scenarios with limited space such as underground coal mines; the utility model has a simple structure and reliable operation, and is suitable for large-scale promotion and use.

[0034] It should be noted that: in the utility model, the connecting mechanism 50 simultaneously carries and supports the column to be separated 30 and the hydraulic telescopic rod 61, which means that the connecting mechanism 50 can be flexibly arranged to apply necessary force in the axial direction and perpendicular to the axial direction of the column to be separated 30 and the hydraulic telescopic rod 61, which can effectively reduce the flexural deformation of the column to be separated 30 and the hydraulic telescopic rod 61 under the action of gravity, and ensure reliable driving in the axial direction.

[0035] like Figure 1As shown, the fixed base 10 includes a base body 11 and a slide rail 12 fixedly arranged on the base body 11, and the extension direction of the slide rail 12 is parallel to the direction in which the hydraulic separation cylinder 60 drives the hydraulic telescopic rod 61 to move; the bearing seat 20 can be raised and lowered on the upper surface of the base body 11; the two sides of the connecting mechanism 50 are slidably limited with the slide rail 12, and the bottom of the connecting mechanism 50 is slidably matched with the upper surface of the base body 11; the bearing mechanism 70 can be movably arranged on the slide rail 12 and reciprocate along the extension direction of the slide rail 12; the hydraulic separation cylinder 60 is arranged on the upper surface of the base body 11 and is located below the bearing seat 20.

[0036] By providing a specific structure of the fixed base 10 , it is ensured that the structure of the fixed base 10 is simplified and the connecting mechanism 50 can be reliably slidably matched on the fixed base 10 .

[0037] like Figure 1 As shown, the connecting mechanism 50 includes a connecting base 51, a connecting piece and a trapezoidal body 52 arranged on the connecting base 51, the two sides of the connecting base 51 are slidably limited with the slide rails 12, and the bottom of the connecting base 51 is slidably matched with the upper surface of the base body 11; the upper surface and the lower surface of the trapezoidal body 52 are parallel, and the area of ​​the upper surface is smaller than the area of ​​the lower surface, and the lower surface is fixedly arranged on the connecting base 51; one side surface of the trapezoidal body 52 is detachably connected to one end of the connecting piece and the hydraulic telescopic rod 61 respectively, and the other end of the connecting piece is detachably connected to the column 30 to be separated; the trapezoidal body 52 simultaneously carries the connecting end of the connecting piece and the trapezoidal body 52, and the connecting end of the hydraulic telescopic rod 61 and the trapezoidal body 52.

[0038] By setting the upper surface and the lower surface of the trapezoidal body 52 to be parallel and the area of ​​the upper surface is smaller than the area of ​​the lower surface, the center of gravity of the trapezoidal body 52 is close to the connecting base 51, thereby ensuring that the overall center of gravity of the trapezoidal body 52 and the connecting base 51 is relatively low, and the movement is more firm and reliable, and the problem of tipping over is not easy to occur.

[0039] In a specific embodiment of the present invention, the connector can be a rigid connector, such as a metal rod, etc. The metal rod can be detachably connected to one side of the trapezoidal body 52 and the column 30 to be separated by means of a pin and a through hole. Of course, the connector can be a flexible connector, such as a metal ribbon, a sling, etc. The two ends of the metal ribbon can also be detachably connected to one side of the trapezoidal body 52 and the column 30 to be separated by means of a pin and a through hole. In addition, the flexible connector can only effectively apply force along the extension direction of the flexible connector when it is stretched tight and straight. Therefore, in order to ensure that the connecting mechanism 50 simultaneously carries and supports the column to be separated 30 and the hydraulic telescopic rod 61, the force along the extension direction of the flexible connecting member can be set to have an angle with the axial direction of the column to be separated 30, so that the force along the extension direction of the flexible connecting member can be decomposed into two mutually perpendicular components. One component is along the axial direction of the column to be separated 30, driving the column to be separated 30 to be separated from the cylinder body 40 to be separated, and the other component is perpendicular to the axial direction of the column to be separated 30, driving the column to be separated 30 to overcome gravity, so that the flexural deformation of the column to be separated 30 under the action of gravity can be effectively reduced.

[0040] like Figure 1 As shown, the trapezoidal body 52 is a right-angled trapezoidal body 52, which has an upright side surface perpendicular to the upper surface of the base body 11 and an inclined side surface 521 inclined to the upper surface of the base body 11, and the upright side surfaces are detachably connected to the connecting piece and the hydraulic telescopic rod 61 respectively; the upright side surfaces and the inclined side surfaces 521 are arranged correspondingly, and the area of ​​the upright side surfaces is smaller than the area of ​​the inclined side surfaces 521; wherein, projected downward in the vertical direction, the connection between the upright side surfaces and the connecting piece and the connection between the upright side surfaces and the hydraulic telescopic rod 61 coincide; projected downward in the vertical direction, the central axis of the column 30 to be separated and the central axis of the hydraulic telescopic rod 61 coincide.

[0041] By setting the area of ​​the upright side surface smaller than the area of ​​the inclined side surface 521, the center of gravity distribution of the trapezoidal body 52 is made more stable; by setting the downward projection in the vertical direction, the connection between the upright side surface and the connecting piece, the connection between the upright side surface and the hydraulic telescopic rod 61 coincide, and the central axis of the column to be separated 30 and the central axis of the hydraulic telescopic rod 61 coincide, thereby ensuring the stability and reliability of the trapezoidal body 52 in transmitting force between the column to be separated 30 and the hydraulic telescopic rod 61.

[0042] like Figure 1As shown, the bearing mechanism 70 includes at least one U-shaped support block 71, and the U-shaped support block 71 has a constraint guide cavity 711 inside. The bottom wall of the constraint guide cavity 711 is slidably abutted with the column to be separated 30 to carry the column to be separated 30; the side wall of the constraint guide cavity 711 is used to limit the column to be separated 30. This arrangement realizes reliable limiting of the column to be separated 30, thereby avoiding the problem of the column to be separated 30 falling when it is separated from the cylinder body 40 to be separated.

[0043] like Figure 1 As shown, the bearing mechanism 70 further includes a moving platform 72, which is movably arranged on the fixed base 10; there are multiple U-shaped support blocks 71, which are arranged on the moving platform 72 at intervals along the axial direction of the column 30 to be separated, so as to move with the moving platform 72. By providing the moving platform 72, after the column 30 to be separated is separated from the cylinder 40 to be separated, efficient transportation of the column 30 to be separated with a large mass is achieved.

[0044] Specifically, the motion platform 72 includes a lifting platform, a lifting adjustment component, a motion chassis, a driving motor and a plurality of moving wheels, and a plurality of U-shaped support blocks 71 are arranged at intervals on the lifting platform; the lifting adjustment component is arranged on the motion chassis and carries the lifting platform, and is used to drive the lifting platform up and down; the plurality of moving wheels are rotatably arranged on the motion chassis, and are respectively connected to the driving motor; the driving motor is arranged on the motion chassis, and is used to drive the plurality of moving wheels to rotate; wherein, after the column 30 to be separated is separated from the cylinder 40 to be separated, the driving motor drives the bearing mechanism 70 carrying the column 30 to be separated to move to a specified position. Such an arrangement not only ensures the working reliability of the motion platform 72, but also simplifies the structure of the motion platform 72.

[0045] Optionally, at least a portion of the U-shaped support block 71 is made of wear-resistant rubber material; and / or, the bottom wall of the constraint guide cavity 711 is made of metal material, and the roughness of the bottom wall of the constraint guide cavity 711 is not greater than the roughness of the outer surface of the column to be separated 30. This arrangement not only ensures the service life of the U-shaped support block 71, but also makes the friction force when the column to be separated 30 and the U-shaped support block 71 slide relative to each other moderate, thereby avoiding the occurrence of blocking problems when the two move relative to each other.

[0046] like Figure 1As shown, the hydraulic cylinder separation device also includes a hydraulic lifting mechanism 80, which is arranged on the fixed base 10 and carries the bearing seat 20, and is used to drive the bearing seat 20 to rise and fall. By setting the hydraulic lifting mechanism 80, it is ensured that the bearing seat 20 can be lifted and lowered efficiently, and the height of the axis of the columns 30 to be separated of different sizes can be flexibly adjusted, so as to facilitate reliable connection with the trapezoidal body through the connecting piece; in addition, it is also convenient for the staff to place the unseparated columns 30 to be separated and the cylinder 40 to be separated on the bearing seat 20.

[0047] like Figure 1 As shown, the bearing seat 20 has a limiting cavity 21 for limiting and carrying the cylinder body 40 to be separated, and the limiting cavity 21 is a U-shaped cavity; the limiting cavity 21 has a first opening 211 and a second opening 212 at both ends in the horizontal direction, and a third opening 213 is provided above the limiting cavity 21, the first opening 211 faces the connecting mechanism 50, and the second opening 212 faces away from the connecting mechanism 50; the cross-sectional dimension of the first opening 211 along the vertical direction is smaller than the cross-sectional dimension of the cylinder body 40 to be separated along the vertical direction, so as to constrain the cylinder body 40 to be separated. The cylinder body 40 cannot be moved out from the first opening 211; the cross-sectional dimension of the second opening 212 along the vertical direction is not less than the cross-sectional dimension of the cylinder body 40 to be separated along the vertical direction, so that the cylinder body 40 to be separated can be moved out or moved in from the second opening 212; the internal dimension of the limiting cavity 21 is adapted to the external dimension of the cylinder body 40 to be separated; the cross-sectional dimension of the third opening 213 along the horizontal direction is greater than the cross-sectional dimension of the cylinder body 40 to be separated along the horizontal direction, so that the cylinder body 40 to be separated can be moved out or moved in from the third opening 213.

[0048] By setting the specific size and position of the first opening 211 and the second opening 212, it is possible to ensure reliable positioning of the cylinder body 40 to be separated and facilitate subsequent transportation of the cylinder body 40 to be separated after separation is completed; by setting the specific size and position of the third opening 213, it is possible for the staff to place the unseparated column 30 to be separated and the cylinder body 40 to be separated on the supporting seat 20.

[0049] In a specific embodiment of the present invention, the bearing seat 20 is formed by welding multiple steel plates, and the hydraulic lifting mechanism 80 includes four hydraulic cylinders, which are distributed at the four corners of the bearing seat 20 to jointly lift the bearing seat 20 and adjust the horizontality of the bearing seat 20.

[0050] It should be noted that: in actual use, it is found that the hydraulic cylinder separation device proposed in the utility model utilizes the extended state of the hydraulic telescopic rod 61 to drive the column 30 to be separated to extend and detach from the cylinder 40 to be separated, so that the extended state of the hydraulic telescopic rod 61 is no longer an unloaded state. Compared with the existing conventional pulling and detaching method, the effective force can be increased by 3.6 times, and the separation efficiency is increased by 10%; and, because the existing hydraulic pulling device is avoided from being opposed to the column 30 to be separated, the overall length of the hydraulic cylinder separation device proposed in the utility model is 6.5 meters, which is 2.5 meters shorter than the original method, effectively reducing the footprint of the equipment and improving the site utilization rate; the hydraulic cylinder separation device proposed in the utility model has not failed after 10 months of use, and there has been no sealing damage, leakage and other failures between the hydraulic telescopic rod 61 and the hydraulic separation cylinder 60, which greatly reduces the failure rate of the hydraulic separation cylinder 60 and effectively ensures the normal production.

[0051] In summary, the present invention provides a hydraulic cylinder separation device. The present invention sets a connecting mechanism 50 so that the hydraulic separation cylinder 60 drives the hydraulic telescopic rod 61 to extend in the same direction as the direction in which the column 30 to be separated extends and disengages from the cylinder 40 to be separated. Different from the existing conventional pull-out separation method, the present invention uses the extended state of the hydraulic telescopic rod 61 to drive the column 30 to be separated to extend and disengage from the cylinder 40 to be separated, so that the extended state of the hydraulic telescopic rod 61 is no longer an unloaded state, and the extended state is used to overcome the resistance of the column 30 to be separated. Compared with the retracted state of the hydraulic telescopic rod 61, the effective pulling force of the column 30 to be separated in the extended state is larger and more efficient. Even when the column 30 to be separated is stuck in the cylinder 40 to be separated, the technical solution of the present invention can still ensure low separation efficiency and avoid the problem of being unable to separate due to insufficient pulling force. By setting the connecting mechanism 50 to simultaneously bear and support The column to be separated 30 and the hydraulic telescopic rod 61 effectively reduce the flexural deformation of the column to be separated 30 and the hydraulic telescopic rod 61 under the action of gravity, avoid the eccentric wear of the seals between the column to be separated 30 and the cylinder body 40 to be separated, and between the hydraulic telescopic rod 61 and the hydraulic separation cylinder 60, thereby avoiding the problem of failure due to seal damage, and improving the working reliability and service life of the hydraulic separation cylinder 60; by setting the bearing mechanism 70, after the cylinder body 40 to be separated and the column to be separated 30 are separated, reliable bearing of the column to be separated 30 is achieved, thereby facilitating the subsequent transportation of the column to be separated 30 with a larger mass; the utility model avoids the existing hydraulic pulling device adopting the method of being opposed to the column to be separated 30, so that the overall structure occupies less space, reduces the space required for the use of the equipment, and is more suitable for use scenarios with limited space such as underground coal mines; the utility model has a simple structure and reliable operation, and is suitable for large-scale promotion and use.

[0052] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0053] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0054] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0055] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0056] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0057] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A hydraulic cylinder separation device, characterized in that: include: Fixed base (10); A bearing seat (20) is arranged on the fixed base (10) and is used to bear and constrain a cylinder body (40) to be separated that cooperates with a column (30) to be separated; A connecting mechanism (50) is slidably disposed on the fixed base (10) and is detachably connected to the column to be separated (30) so as to drive the column to be separated (30) to move; A hydraulic separation cylinder (60) is fixedly arranged on the fixed base (10); a hydraulic telescopic rod (61) of the hydraulic separation cylinder (60) is connected to the connecting mechanism (50) to drive the connecting mechanism (50) to reciprocate; A bearing mechanism (70) is movably arranged on the fixed base (10); the bearing mechanism (70) is located between the connecting mechanism (50) and the column to be separated (30), and is located below the column to be separated (30), so as to at least bear the column to be separated (30) after being separated from the cylinder body to be separated (40); The hydraulic separation cylinder (60) drives the hydraulic telescopic rod (61) to extend in the same direction as the direction in which the column to be separated (30) extends and detaches from the cylinder body (40) to be separated; the connecting mechanism (50) simultaneously supports the connecting end between the column to be separated (30) and the connecting mechanism (50), and the connecting end between the hydraulic telescopic rod (61) and the connecting mechanism (50); the hydraulic separation cylinder (60) drives the hydraulic telescopic rod (61) to extend, driving the connecting mechanism (50) and the column to be separated (30) to move away from the cylinder body (40) to be separated, so that the column to be separated (30) is disconnected from the cylinder body (40) to be separated.

2. The hydraulic cylinder separation device according to claim 1, characterized in that: The fixed base (10) comprises a base body (11) and a slide rail (12) fixedly arranged on the base body (11), wherein the extension direction of the slide rail (12) is parallel to the direction in which the hydraulic separation cylinder (60) drives the hydraulic telescopic rod (61) to move; the bearing seat (20) is movably arranged on the upper surface of the base body (11); the two sides of the connecting mechanism (50) are slidably limited with the slide rail (12), and the bottom of the connecting mechanism (50) is slidably matched with the upper surface of the base body (11); the bearing mechanism (70) is movably arranged on the slide rail (12) and reciprocates along the extension direction of the slide rail (12); the hydraulic separation cylinder (60) is arranged on the upper surface of the base body (11) and is located below the bearing seat (20).

3. The hydraulic cylinder separation device according to claim 2, characterized in that: The connecting mechanism (50) comprises a connecting base (51), a connecting piece and a trapezoidal body (52) arranged on the connecting base (51); the two sides of the connecting base (51) are slidably limited with the slide rail (12), and the bottom of the connecting base (51) is slidably matched with the upper surface of the base body (11); the upper surface and the lower surface of the trapezoidal body (52) are parallel, and the area of ​​the upper surface is smaller than the area of ​​the lower surface, and the lower surface is fixedly arranged on the connecting base (51); one side surface of the trapezoidal body (52) is detachably connected to one end of the connecting piece and the hydraulic telescopic rod (61), respectively, and the other end of the connecting piece is detachably connected to the column (30) to be separated; the trapezoidal body (52) simultaneously carries the connecting end of the connecting piece and the trapezoidal body (52), and the connecting end of the hydraulic telescopic rod (61) and the trapezoidal body (52).

4. The hydraulic cylinder separation device according to claim 3, characterized in that: The trapezoidal body (52) is a right-angled trapezoidal body (52), and the right-angled trapezoidal body (52) has an upright side surface perpendicular to the upper surface of the base body (11) and an inclined side surface (521) inclined to the upper surface of the base body (11), and the upright side surface is detachably connected to the connecting piece and the hydraulic telescopic rod (61) respectively; the upright side surface and the inclined side surface (521) are arranged correspondingly, and the area of ​​the upright side surface is smaller than the area of ​​the inclined side surface (521); wherein, when projected downward in the vertical direction, the connection between the upright side surface and the connecting piece and the connection between the upright side surface and the hydraulic telescopic rod (61) coincide; when projected downward in the vertical direction, the central axis of the column (30) to be separated and the central axis of the hydraulic telescopic rod (61) coincide.

5. The hydraulic cylinder separation device according to claim 1, characterized in that: The bearing mechanism (70) comprises at least one U-shaped supporting block (71), the interior of the U-shaped supporting block (71) comprises a constraining guide cavity (711), the bottom wall of the constraining guide cavity (711) is in sliding contact with the column to be separated (30) so as to bear the column to be separated (30); the side wall of the constraining guide cavity (711) is used to limit the column to be separated (30).

6. The hydraulic cylinder separation device according to claim 5, characterized in that: The bearing mechanism (70) further comprises a moving platform (72), and the moving platform (72) is movably arranged on the fixed base (10); there are a plurality of U-shaped support blocks (71), and the plurality of U-shaped support blocks (71) are arranged on the moving platform (72) at intervals along the axial direction of the column (30) to be separated so as to follow the movement of the moving platform (72).

7. The hydraulic cylinder separation device according to claim 6, characterized in that: The motion platform (72) comprises a lifting platform, a lifting adjustment component, a motion chassis, a driving motor and a plurality of motion wheels, and a plurality of U-shaped support blocks (71) are arranged at intervals on the lifting platform; the lifting adjustment component is arranged on the motion chassis and carries the lifting platform, and is used to drive the lifting platform to move up and down; The plurality of moving wheels are rotatably arranged on the moving chassis and are respectively connected to the driving motor; the driving motor is arranged on the moving chassis and is used to drive the plurality of moving wheels to rotate; wherein, after the column to be separated (30) is separated from the cylinder body to be separated (40), the driving motor drives the supporting mechanism (70) supporting the column to be separated (30) to move to a specified position.

8. The hydraulic cylinder separation device according to claim 5, characterized in that: At least a portion of the U-shaped support block (71) is made of wear-resistant rubber material; and / or the bottom wall of the constraint guide cavity (711) is made of metal material, and the roughness of the bottom wall of the constraint guide cavity (711) is not greater than the roughness of the outer surface of the column (30) to be separated.

9. The hydraulic cylinder separation device according to claim 1, characterized in that: The hydraulic cylinder separation device further comprises a hydraulic lifting mechanism (80), wherein the hydraulic lifting mechanism (80) is arranged on the fixed base (10) and supports the bearing seat (20), and is used for driving the bearing seat (20) to move up and down.

10. The hydraulic cylinder separation device according to claim 1, characterized in that: The bearing seat (20) has a limiting cavity (21) inside for limiting and supporting the cylinder body (40) to be separated, and the limiting cavity (21) is a U-shaped cavity; the limiting cavity (21) has a first opening (211) and a second opening (212) at both ends in the horizontal direction, and a third opening (213) is provided above the limiting cavity (21); the first opening (211) faces the connecting mechanism (50), and the second opening (212) faces away from the connecting mechanism (50); the cross-sectional dimension of the first opening (211) in the vertical direction is smaller than the cross-sectional dimension of the cylinder body (40) to be separated in the vertical direction, so as to constrain the The cylinder body (40) to be separated cannot be moved out from the first opening (211); the cross-sectional dimension of the second opening (212) in the vertical direction is not less than the cross-sectional dimension of the cylinder body (40) to be separated in the vertical direction, so that the cylinder body (40) to be separated can be moved out from or moved in from the second opening (212); the internal dimension of the limiting cavity (21) is compatible with the external dimension of the cylinder body (40) to be separated; the cross-sectional dimension of the third opening (213) in the horizontal direction is greater than the cross-sectional dimension of the cylinder body (40) to be separated in the horizontal direction, so that the cylinder body (40) to be separated can be moved out from or moved in from the third opening (213).

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