A new hydraulic cylinder for hydraulic cone crushers

Abstract

The application is a new type of hydraulic cylinder of hydraulic cone crusher, which comprises a cylinder body, a base arranged at the bottom of the cylinder body, an extension end arranged at the top of the cylinder body, and a piston block arranged inside the cylinder body, a plurality of movable supporting rods are fixed on the top of the piston block, the movable supporting rods simultaneously guide and support the extension end on the cylinder body, and a guide pipe penetrating the piston block is installed in the middle of the cylinder body, so that the piston block can stably slide up and down in the cylinder body and is not prone to shaking, and a clamping groove is arranged on the surface of the piston block, which can be used in cooperation with the electric push rods distributed on the upper, middle and lower sides of the outer surface of the cylinder body, so that the electric push rod can be inserted into the clamping groove to assist in limiting and physically supporting the piston block, in combination with the hydraulic action in the cylinder, so that the piston block can be more stably positioned in the cylinder body, improving the overall supporting effect and reducing the possibility of oil leakage.

Description

Technical Field

[0001] This invention specifically relates to a novel hydraulic cylinder for a hydraulic cone crusher, and pertains to the field of hydraulic cylinder technology. Background Technology

[0002] Traditional single-cylinder hydraulic cone crushers rely on a single hydraulic pressure for support. When crushing medium-hard ores (such as metal ores), the hydraulic cylinder must withstand periodic impact loads, which can easily lead to piston rod vibration and discharge port deviation. Moreover, the hydraulic cylinder can be supported in three different positions (upper, middle, and lower). During use, it relies solely on hydraulic pressure for support, resulting in poor stability. Furthermore, the large load it bears can easily cause oil leakage and sealing problems. It also cannot replenish or replace oil as needed in real time. Therefore, there is an urgent need to propose a new type of hydraulic cone crusher cylinder to improve upon the above problems. Summary of the Invention

[0003] To address the shortcomings of existing technologies, the present invention aims to provide a novel hydraulic cylinder for a hydraulic cone crusher, thereby solving the problems mentioned in the background section.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a novel hydraulic cylinder for a hydraulic cone crusher, comprising a cylinder body, a base at the bottom of the cylinder body, a telescopic end at the top of the cylinder body, and a piston block located inside the cylinder body for piston movement. Multiple movable support rods are fixedly mounted on the four sides of the top of the piston block, and each movable support rod extends outward from the top of the cylinder body and connects to the bottom of the telescopic end, allowing each movable support rod to simultaneously guide and support the telescopic end. The piston block comprises a steel plate, and upper and lower sealing rings are located on the upper and lower sides of the steel plate. The movable support rods are connected to the upper side of the steel plate, and the upper and lower sealing rings are tightly fitted to the inner wall of the cylinder body. A slot is provided in the middle of the steel plate. Multiple electric push rods are installed on the outer side of the cylinder body, and each electric push rod's telescopic rod extends through the inner side of the cylinder body and is adapted to be located within the slot, for auxiliary fixing and supporting the piston block. A guide tube is also fixedly installed in the middle of the inner side of the cylinder body, and the guide tube is tightly penetrated by the piston block, for stabilizing and guiding the piston block's lifting and lowering displacement.

[0005] In a further improved design, an air pipe is provided on one side of the telescopic end, and a rubber airbag ring is tightly provided on the outer edge of the slot to form a sealed space inside the slot. An air hole is provided inside the slot, and the air hole is connected to the air pipe through the inner cavity of one of the movable support rods. The air pipe is connected to an external air pump through a pipeline.

[0006] A further improved solution is that when the air pump inflates the rubber airbag ring through the air pipe, the rubber airbag ring expands and tightly presses against the inner wall of the cylinder.

[0007] When the air pump deflates the rubber airbag ring, the rubber airbag ring returns to a state of tight contact with the inner wall of the slot under the elastic force of the rubber. At this time, the telescopic rod of the electric push rod can be extended and inserted into the slot for tightening and limiting.

[0008] In a further improved design, the electric actuator is divided into three layers: upper, middle, and lower, with each layer's electric actuators arranged in a circular array.

[0009] A further improved design includes a slot in the middle of the base, through which a rotating tube is rotatably mounted, and the outer end of the rotating tube is connected to an oil pump via a pipe.

[0010] A further improved scheme is provided in which a row of outer holes is vertically opened on one side of the guide tube, and an adjusting tube is tightly rotatably connected to the inner side of the guide tube. An inner hole is vertically opened on one side of the adjusting tube, and the inner hole is connected to the outer hole.

[0011] In a further improved design, the bottom end of the adjusting tube is rotatably installed through the groove of the base and sealed, and the bottom end of the adjusting tube is fixedly connected to the rotating tube.

[0012] A further improved solution involves adjusting the rotation of the rotating tube to make the outer hole and the inner hole correspondingly connected or staggered and closed.

[0013] When the outer hole and the inner hole are connected, the cylinder can be simultaneously replenished with oil and pressurized by an external oil pump, or the oil can be drained and replaced by an oil pump.

[0014] A further improved solution involves adding a valve to one end of the rotating tube.

[0015] A further improved solution is that an adjustment mechanism for stabilizing and adjusting the rotation of the rotating tube is installed on one side of the base. The adjustment mechanism includes a screw and a handwheel installed on the outer end of the screw. The screw is screwed into the slot from the outside to the inside from one side of the base, and a universal ball joint is fixed at the inner end of the screw. The universal ball joint is universally connected to a sleeve through the ball joint shaft, and the sleeve is slidably fitted in the middle of the rotating tube.

[0016] By adopting the above technical solution, the present invention has the following advantages:

[0017] Firstly, the invention has a simple and ingenious structure. Multiple movable support rods simultaneously guide and support the telescopic end on the cylinder body, and a guide tube penetrating the piston block is installed in the middle of the cylinder body. This allows the piston block to slide stably up and down in the cylinder body without easily shaking. Moreover, by opening a slot on the surface of the piston block, this slot can be used with electric push rods distributed on the upper, middle and lower sides of the outer surface of the cylinder body. The telescopic rods of the electric push rods can be inserted into the slots to provide auxiliary limiting and physical support for the piston block. Combined with the hydraulic action inside the cylinder, the piston block can be positioned more stably in the cylinder body, improving the overall support effect and reducing the possibility of oil leakage.

[0018] Secondly, a rubber airbag ring is installed on the outside of the slot to seal the slot. The rubber airbag ring can be expanded by the action of an external air pump and pressed tightly against the inner wall of the cylinder. This can enhance the sealing of the piston block during lifting and lowering, and prevent leakage.

[0019] Thirdly, in order to facilitate the replenishment and quick replacement of oil in the cylinder, an adjusting pipe is installed inside the guide tube. By rotating the adjusting pipe, the inner and outer holes can be rotated to correspond, allowing oil to quickly enter or exit the bottom of the adjusting pipe. This makes it relatively quick and convenient to maintain, replenish or replace the oil in the hydraulic cylinder.

[0020] Fourthly, in order to facilitate the rotation of the adjustment tube, an adjustment mechanism is provided on the base. This adjustment mechanism uses a combination of linear thread motion and universal joint to drive the rotating tube and the guide tube to rotate, so that the guide tube can be rotated and oscillated left and right quickly and stably. Attached Figure Description

[0021] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the structure of the movable support rod, piston block, and electric push rod of the present invention;

[0024] Figure 3 For the present invention Figure 2 Another perspective structural diagram;

[0025] Figure 4 This is a schematic diagram of the piston block and air tube of the present invention;

[0026] Figure 5 This is a schematic diagram of the guide tube and base of the present invention;

[0027] Figure 6 This is a schematic diagram of the structure of the guide tube and the rotating tube of the present invention;

[0028] Figure 7 This is a schematic diagram of the adjustment mechanism of the present invention;

[0029] In the diagram: 1. Cylinder body; 2. Base; 21. Groove; 22. Rotating tube; 3. Telescopic end; 31. Air pipe; 4. Piston block; 41. Steel plate; 42. Upper sealing ring; 43. Lower sealing ring; 44. Slot; 45. Air hole; 46. Rubber airbag ring; 5. Movable support rod; 6. Electric push rod; 7. Guide tube; 71. Outer hole; 72. Adjusting tube; 73. Inner hole; 91. Screw; 92. Universal ball joint rod; 93. Sleeve; 94. Handwheel. Detailed Implementation

[0030] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0031] like Figure 1 As shown in Figure 7, this invention provides a novel hydraulic cylinder for a hydraulic cone crusher, comprising a cylinder body 1, a base 2 located at the bottom of the cylinder body 1, a telescopic end 3 located at the top of the cylinder body 1, and a piston block 4 located inside the cylinder body 1 for piston movement. Four movable support rods 5 are fixedly mounted on the four sides of the top of the piston block 4, and each movable support rod 5 extends outward from the top of the cylinder body 1 and connects to the bottom of the telescopic end 3, allowing each movable support rod 5 to simultaneously guide and support the telescopic end 3. The piston block 4 includes a steel plate 41, and a base 2 located at the bottom of the base 2. The upper sealing ring 42 and lower sealing ring 43 on the upper and lower sides, the movable support rod 5 are integrally fixedly connected to the upper side of the steel plate 41, the upper sealing ring 42 and lower sealing ring 43 are tightly fitted to the inner wall of the cylinder body 1, thereby improving the tightness, the steel plate 41 has a slot 44 in the middle, and multiple electric push rods 6 are installed on the outer side of the cylinder body 1, and the telescopic rods of each electric push rod 6 are all inserted through the inner side of the cylinder body 1 and adapted to be opened in the slot 44, which are used to assist in fixing and supporting the piston block 4, so as to realize the dual support function of hydraulic and mechanical structure.

[0032] Furthermore, a guide tube 7 is fixedly installed in the middle of the inner side of the cylinder 1, and the guide tube 7 is tightly penetrated by the piston block 4. This can stably guide the piston block 4 to rise and fall, and combined with the sliding guide of the four movable support rods 5, it can effectively prevent the piston block 4 and the telescopic end 3 from vibrating and shifting, thus improving the stability of the movement.

[0033] Furthermore, in this embodiment, an air pipe 31 is provided on one side of the telescopic end 3, and a rubber airbag ring 46 is tightly provided on the outer edge of the slot 44, so that a sealed space is formed inside the slot 44. An air hole 45 is provided inside the slot 44, and the air hole 45 is connected to the air pipe 31 through the inner cavity of one of the movable support rods 5. The air pipe 31 is connected to an air pump through a pipe. Therefore, the rubber airbag ring 46 can be expanded by inflating it with the air pump. The air pressure makes the rubber airbag ring 46 continuously press against the inner wall of the cylinder 1 to ensure the airtightness. When the air pump releases air from the rubber airbag ring 46, the rubber airbag ring 46 returns to the state of pressing against the inner wall of the slot 44 under the elastic force of the rubber. At this time, the telescopic rod of the electric push rod 6 can be extended and inserted into the slot 44 for pressing and limiting.

[0034] It should also be noted that the electric push rod 6 is divided into three layers: upper, middle and lower, corresponding to the three positions where the cone crusher components need to be raised and lowered. The electric push rods 6 in each layer are arranged in a circular array. Specifically, each layer is equipped with three electric push rods 6, which extend from different directions and insert into the inner side of the slot 44, so that the force is relatively uniform and stable.

[0035] A further improvement is that a slot 21 is provided in the middle of the base 2, and a rotating tube 22 is rotatably mounted on the slot 21. The outer end of the rotating tube 22 is connected to the oil pump via a pipe. A row of outer holes 71 is vertically provided on one side of the guide tube 7, and an adjusting tube 72 is tightly rotatably connected to the inner side of the guide tube 7. A row of inner holes 73 is vertically provided on one side of the adjusting tube 72, and the inner holes 73 are correspondingly connected to the outer holes 71. The bottom end of the adjusting tube 72 is rotatably mounted through the slot 21 of the base 2 and is sealed. 2. The bottom end is fixedly connected to the rotating pipe 22. A valve is installed at one end of the rotating pipe 22. This valve can further ensure the control effect of preventing oil leakage. By adjusting the rotation of the rotating pipe 22, the outer hole 71 and the inner hole 73 are connected or staggered and closed. When the outer hole 71 and the inner hole 73 are connected, the oil pump simultaneously replenishes oil and pressurizes the inside of the cylinder 1, or the oil pump discharges oil to replace it. In this way, the oil can enter and exit the cylinder 1 through the regulating pipe 72 and the guide pipe 7. That is to say, the guide pipe 7 It not only functions as a sliding guide piston block 4, but also works in conjunction with the adjusting pipe 72 to allow oil to enter and exit the cylinder 1, facilitating oil replenishment when the cylinder is low or quick replacement of oil. To make the operation simpler, more convenient, and more stable, an adjusting mechanism is installed on one side of the base 2 to stabilize the rotation of the adjusting pipe 22. This adjusting mechanism includes a screw 91 and a handwheel 94 installed on the outer end of the screw 91. The screw 91 is threaded from the outside to the inside into the slot from one side of the base 2. 21. A universal ball joint rod 92 is fixedly provided at the inner end of the screw 91. The universal ball joint rod 92 is universally connected to the sleeve 93 through the ball joint shaft. The sleeve is slidably sleeved in the middle of the rotating tube 22. Therefore, when the screw 91 is screwed to the left, the universal ball joint rod 92 pushes the sleeve 93 and the rotating tube 22 to rotate to the left. When the screw 91 is screwed to the right, the universal ball joint rod 92 pulls the sleeve 93 to rotate to the right. The sleeve 93 can adapt to the direction of the rotating tube 22 by the action of the universal ball joint rod 92 and the ball joint shaft, which is very flexible in use.

[0036] In a more specific embodiment, when the hydraulic cylinder of the present invention is extended, oil is introduced into the lower oil inlet pipe of the cylinder body 1, causing the oil to push the piston block 4 to slide stably upward along the guide pipe 7 and the four movable support rods 5. The guidance of the guide pipe 7 and the movable support rods 5 makes the piston block 4 and the telescopic end 3 less prone to vibration and displacement. The oil on the upper side of the piston block 4 is discharged from the upper oil outlet pipe of the cylinder body 1. Since the piston block 4 is provided with an upper sealing ring 42 and a lower sealing ring 43 respectively to tightly connect with the inner wall of the cylinder body 1, mutual penetration generally does not occur. During the up and down sliding process, the air pump connected by the air pipe 31 inflates the slot 44, causing the rubber air bladder ring 46 to expand. This allows the rubber air bladder ring 46 to make tight pressure contact with the inner wall of the cylinder body 1, which can better improve the sealing performance between the piston block 4 and the cylinder body 1, making it less prone to oil leakage when the piston block 4 moves up and down. Furthermore, when the piston block 4 is pushed to the required upper, middle or lower position of the cone crusher... At this time, the telescopic rods of the upper, middle, or lower corresponding electric push rods 6 extend and can be inserted into the slots 44 on the outer periphery of the steel plate 41, thereby providing auxiliary limiting and physical support for the piston block 4. Combined with the hydraulic action inside the cylinder, this allows the piston block 4 to be positioned more stably inside the cylinder body 1, improving the overall support effect and reducing the possibility of cylinder explosion or oil leakage due to excessive oil pressure. At the same time, during later use and maintenance, the screw 91 can be rotated in the position of the screw 91 on the base 2 by the handwheel 94, and the sleeve 93 connected to the end by the universal ball joint rod 92 can be slid and pushed to swing the rotating tube 22 to the left or right. When the rotating tube 22 swings to the left, the inner hole 73 of the adjusting tube 72 is offset from and closed with the outer hole 71 of the guide tube 7. When the rotating tube 22 swings to the right, the inner hole 73 of the adjusting tube 72 is connected to the outer hole 71 of the guide tube 7. In this way, the oil pump can be connected through the rotating tube 22 to perform oil replenishment or oil draining and replacement work. It is not only simple and convenient to use, but also greatly improves the efficiency of later maintenance.

[0037] It should be noted that the novel hydraulic cone crusher hydraulic cylinder of the present invention mainly improves the above-mentioned structure. The functions, components and structures not mentioned can be implemented by using existing components and structures that can achieve the corresponding functions.

[0038] The above embodiments illustrate and describe the basic principles and main features of the present invention, as well as its advantages. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the present invention. Various changes and modifications can be made to the present invention without departing from its spirit and scope. All such changes and modifications fall within the scope of the present invention as claimed, which is defined by the appended claims and their equivalents.

Claims

1. A novel hydraulic cylinder for a hydraulic cone crusher, comprising a cylinder body (1), a base (2) disposed at the bottom of the cylinder body (1), a telescopic end (3) disposed at the top of the cylinder body (1), and a piston block (4) disposed inside the cylinder body (1) for piston movement, characterized in that, The piston block (4) has multiple movable support rods (5) fixed on its four sides. Each movable support rod (5) extends outward from the top of the cylinder (1) and connects to the bottom of the telescopic end (3), so that each movable support rod (5) simultaneously guides and supports the telescopic end (3). The piston block (4) includes a steel plate (41), and an upper sealing ring (42) and a lower sealing ring (43) disposed on the upper and lower sides of the steel plate (41). The movable support rod (5) is connected to the upper side of the steel plate (41). The upper sealing ring (42) and the lower sealing ring (43) are tightly fitted to the inner wall of the cylinder body (1). A slot (44) is provided in the middle of the steel plate (41). Multiple electric push rods (6) are installed on the outer side of the cylinder body (1). The telescopic rods of each electric push rod (6) pass through the inner side of the cylinder body (1) and are adapted to be opened in the slot (44) for auxiliary fixing and supporting the piston block (4). A guide tube (7) is also fixedly installed in the middle of the inner side of the cylinder (1), and the guide tube (7) is tightly penetrated by the piston block (4) to stabilize the lifting and lowering displacement of the guide piston block (4); The base (2) has a slot (21) in the middle, and a rotating tube (22) is rotatably installed in the slot (21). The outer end of the rotating tube (22) is connected to the oil pump through a pipe. A row of outer holes (71) is vertically opened on one side of the guide tube (7). An adjusting tube (72) is tightly rotatably connected to the inner side of the guide tube (7). A row of inner holes (73) is vertically opened on one side of the adjusting tube (72), and the inner holes (73) are connected to the outer holes (71).

2. The novel hydraulic cylinder for a hydraulic cone crusher according to claim 1, characterized in that, An air tube (31) is provided on one side of the telescopic end (3), and a rubber airbag ring (46) is tightly provided on the outer edge of the slot (44) to form a sealed space inside the slot (44). An air hole (45) is provided inside the slot (44), and the air hole (45) is connected to the air tube (31) through the inner cavity of one of the movable support rods (5). The air tube (31) is connected to an external air pump through a pipe.

3. The novel hydraulic cylinder for a hydraulic cone crusher according to claim 2, characterized in that, When the air pump inflates the rubber airbag ring (46) through the air pipe (31), the rubber airbag ring (46) expands and tightly presses against the inner wall of the cylinder (1); When the air pump deflates the rubber airbag ring (46), the rubber airbag ring (46) returns to the state of tightly adhering to the inner wall of the slot (44) under the elastic force of the rubber. At this time, the telescopic rod of the electric push rod (6) can be extended and inserted into the slot (44) for tightening and limiting.

4. The novel hydraulic cylinder for a hydraulic cone crusher according to claim 1, characterized in that, The electric push rod (6) is divided into three layers: upper, middle and lower, and the electric push rods (6) in each layer are distributed in a circular array.

5. A novel hydraulic cylinder for a hydraulic cone crusher according to claim 1, characterized in that, The bottom end of the regulating tube (72) is rotatably installed in the slot (21) of the base (2) and sealed, and the bottom end of the regulating tube (72) is fixedly connected to the rotating tube (22).

6. A novel hydraulic cylinder for a hydraulic cone crusher according to claim 5, characterized in that, By adjusting the rotation of the rotating tube (22), the outer hole (71) and the inner hole (73) are connected or staggered and closed. When the outer hole (71) is connected to the inner hole (73), the oil pump simultaneously replenishes oil and pressurizes the inside of the cylinder (1), or the oil pump discharges oil to the outside to replace it.

7. A novel hydraulic cylinder for a hydraulic cone crusher according to claim 6, characterized in that, A valve is installed at one end of the rotating tube (22).

8. A novel hydraulic cylinder for a hydraulic cone crusher according to claim 7, characterized in that, An adjustment mechanism for stabilizing the rotation of the rotating tube (22) is installed on one side of the base (2). The adjustment mechanism includes a screw (91) and a handwheel (94) installed on the outer end of the screw (91). The screw (91) is screwed into the slot (21) from the outside to the inside from one side of the base (2). A universal ball joint (92) is fixed at the inner end of the screw (91). The universal ball joint (92) is universally connected to a sleeve (93) through a ball joint shaft. The sleeve is slidably fitted in the middle of the rotating tube (22).

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