Hydraulic jack and cylinder barrel inner wall rust removal device thereof

Abstract

The invention discloses a hydraulic jack and a cylinder barrel inner wall rust removal device thereof, and relates to the technical field of hydraulic jack cylinder barrel maintenance. The device comprises a bottom plate, a fixing table is fixedly arranged on one side of the top end of the bottom plate, a fixing support is fixedly arranged on the other side of the top end of the bottom plate, a reciprocating moving assembly is arranged on the fixing support, a conveying frame is arranged at the end of the reciprocating moving assembly, and a steam driving spraying assembly is arranged in the conveying frame. A polishing adjusting assembly is arranged on the steam-driven injection assembly, and a synchronous polishing assembly is arranged on the polishing adjusting assembly; by arranging the steam-driven injection assembly and the synchronous polishing assembly, high-pressure steam flow generated by the high-pressure steam generator drives the rotating frame and the lifting frame to rotate synchronously through the steam-driven injection assembly, and the lifting frame drives the polishing roller to rotate synchronously; through the operation, the high-pressure steam flow and the polishing roller are matched with each other to achieve the effect of uniformly polishing and derusting the inner wall of the oil cylinder barrel.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic jack cylinder maintenance, in particular to a hydraulic jack and a device for removing rust from the inner wall of its cylinder. Background Art

[0002] A hydraulic jack is a tool that uses the hydraulic principle to lift heavy objects. It is mainly composed of a cylinder, a piston, an oil pump and other parts. It can generate a large lifting force by inputting a small amount of force. Hydraulic jacks are widely used in automobile maintenance, construction engineering, mechanical handling and other occasions. The hydraulic cylinder needs to be removed for maintenance after a period of use. After the maintenance is completed, the metal inner wall of the hydraulic cylinder is exposed to the air during the placement process. Oxygen reacts with the metal surface, which will cause oxidation and rust. The rust marks on the inner wall of the cylinder usually have obvious differences, which are manifested as different weights. The traditional single grinding and rust removal method has the problem of incomplete rust removal, which affects the use of the hydraulic cylinder barrel. Secondly, the cylinder barrels of hydraulic jacks of different specifications are different in specifications, and the transmission grinding and rust removal tools are less flexible and cannot be adjusted according to the usage conditions, which leads to low rust removal efficiency. In view of the above problems, the inventor proposes a hydraulic jack and a cylinder barrel inner wall rust removal device to solve the above problems. Summary of the invention

[0003] In order to solve the problem of uniformly removing rust from the inner wall of the cylinder of a hydraulic jack and removing rust from the inner walls of cylinders of different specifications; the purpose of the present invention is to provide a hydraulic jack and a device for removing rust from the inner wall of its cylinder.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions: a hydraulic jack, including a hydraulic jack body, the hydraulic jack body including a base, an oil tank is provided on one side of the top of the base, a large cylinder cavity is provided in the oil tank, a top column is slidably provided on the inner wall of the large cylinder cavity, a small cylinder cavity is provided on the other side of the top of the base, a piston is slidably provided on the inner wall of the small cylinder cavity, a handle is provided on the top of the base for use with the piston, an oil inlet valve assembly is provided in the base for use with the oil tank, the large cylinder cavity and the small cylinder cavity, and an oil drain valve assembly is provided on the other side of the base for use with the oil tank and the large cylinder cavity.

[0005] A cylinder inner wall rust removal device used for a hydraulic jack comprises a base plate, a fixed platform is fixedly provided on one side of the top of the base plate, a fixed bracket is fixedly provided on the other side of the top of the base plate, a reciprocating component is provided on the fixed bracket, a conveying frame is provided at the end of the reciprocating component, a steam-driven injection component is provided in the conveying frame, a grinding adjustment component is provided on the steam-driven injection component, a synchronous grinding component is provided on the grinding adjustment component, a fixing fixture is provided on the fixed platform, and a high-pressure steam generator is provided on the top of the base plate close to the fixed bracket.

[0006] Preferably, the reciprocating moving component includes a fixed frame, which is fixedly installed on the top of the fixed bracket, a reciprocating threaded rod is rotatably provided in the middle of the fixed frame, a driving motor is fixedly provided at the bottom of the fixed frame, and the driving end of the driving motor is connected to the reciprocating threaded rod through a pulley transmission group, two symmetrically distributed sliding grooves are fixedly provided on both sides of the inner wall of the fixed frame, a sliding frame is slidably provided in the sliding groove, a sliding block is threadedly sleeved on the outer wall of the reciprocating threaded rod, and the sliding block is fixedly installed in the middle of the bottom end of the sliding frame.

[0007] Preferably, the conveying frame includes a steam conveying pipe, an outer frame and a first connecting frame, the first connecting frame is fixedly mounted on the sliding frame, the outer frame is fixedly mounted on the outer wall of the steam conveying pipe, the first connecting frame is fixedly mounted on one side of the outer wall of the outer frame, and a second connecting frame is fixedly provided on the side of the outer wall of the outer frame away from the first connecting frame.

[0008] Preferably, the steam driven injection assembly comprises three symmetrically distributed triangular fixing frames, a driving shaft is rotatably provided in the triangular fixing frames, two symmetrically distributed turbines are fixedly sleeved on the outer wall of the driving shaft, a rotating frame is rotatably provided on the side of the steam delivery pipe close to the second connecting frame, and the driving shaft is fixedly connected to the rotating frame, nozzles are fixedly provided at both ends of the rotating frame, a first transmission shaft used in conjunction with the driving shaft is rotatably provided in the middle of the steam delivery pipe, and the first transmission shaft is rotatably connected to the outer frame, a second transmission shaft is rotatably provided on the top end of the outer frame close to the first transmission shaft, two symmetrically distributed No. 1 circular guide rails are fixedly provided on the outer wall of the outer frame, and rotating frames are rotatably provided on the two No. 1 circular guide rails , three connecting plates distributed in an annular array are fixedly arranged between the two rotating frames, the driving shaft is connected to the first transmission shaft through a bevel gear set, the first transmission shaft is connected to the second transmission shaft through a bevel gear set, a No. 1 rotating gear is fixedly arranged at the end of the second transmission shaft, a No. 1 fixed gear ring used in conjunction with the No. 1 rotating gear is fixedly sleeved on the outer wall of the outer frame, and the No. 1 fixed gear ring is meshed with the No. 1 rotating gear, six No. 1 pulley blocks distributed in an annular array are fixedly arranged on the inner wall of the rotating frame, and the No. 1 pulley block slides on the No. 1 circular guide rail, a bellows is connected to the side of the steam delivery pipe close to the sliding frame, and the other end of the bellows is connected to the air outlet end of the high-pressure steam generator.

[0009] Preferably, the grinding adjustment assembly includes three first slide rails distributed in a circular array, the three first slide rails are all fixedly mounted on the outer wall of the first connecting frame, a sliding adjustment frame is slidably provided on the first slide rail, two symmetrically distributed second slide rails are fixedly provided on the top of the connecting plate, a lifting guide frame is fixedly provided in the middle of the top of the connecting plate, a lifting frame is slidably provided on the lifting guide frame, two symmetrically distributed lifting guide grooves are provided on the lifting guide frame, a movable adjustment frame is slidably provided on the second slide rail, and two symmetrically distributed inclined grooves are provided on the movable adjustment frame, a guide column used in conjunction with the lifting guide groove and the inclined groove is fixedly provided on the lifting frame, and the guide column slides in the lifting guide groove and the inclined groove, a No. 2 circular guide rail is fixedly provided on the side of the sliding adjustment frame close to the movable adjustment frame, and the movable adjustment frame slides on the No. 2 circular guide rail, an electric cylinder is fixedly provided on the middle of the top of the first connecting frame, and the driving end of the electric cylinder is fixedly connected to the sliding adjustment frame, a No. 2 pulley block is provided on the side of the movable adjustment frame close to the sliding adjustment frame, and the No. 2 pulley block slides on the No. 2 circular guide rail.

[0010] Preferably, the synchronous grinding assembly includes three grinding rollers, and the three grinding rollers are rotatably mounted on corresponding lifting frames respectively; an extension frame is fixedly provided on one side of the lifting guide frame close to the second connecting frame; a No. 1 universal coupling is fixedly provided on one end of the grinding roller close to the extension frame; a sliding shaft is fixedly provided on the other end of the No. 1 universal coupling; a connecting shaft is provided on the sliding sleeve on the outer wall of the sliding shaft; a No. 2 universal coupling is fixedly provided on the bottom end of the connecting shaft; a driven shaft is fixedly provided on the other end of the No. 2 universal coupling, and the driven shaft is rotatably mounted on the extension frame; a No. 2 rotating gear is fixedly provided on the outer wall of the driven shaft; a No. 2 fixed gear ring used in conjunction with the No. 2 rotating gear is fixedly provided on the outer wall of the second connecting frame, and the No. 2 rotating gear is meshingly connected with the No. 2 fixed gear ring.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. The present invention provides a steam-driven jet assembly and a synchronous grinding assembly, so that the high-pressure steam airflow generated by the high-pressure steam generator drives the rotating frame and the lifting frame to rotate synchronously through the steam-driven jet assembly, thereby driving the high-pressure steam to rotate and spray on the inner wall of the cylinder barrel. The high-pressure steam can effectively penetrate the rust layer, soften and remove rust, and improve the cleaning efficiency. At the same time, the synchronous grinding assembly drives the grinding roller to rotate while the lifting frame rotates. The self-rotation can make the wear of the grinding tool more uniform, avoid the decline of the grinding effect due to unilateral wear, and thus extend the service life of the grinding roller. Through the above operation, the high-pressure steam airflow and the grinding roller cooperate with each other to achieve the effect of uniform grinding and rust removal of the inner wall of the oil cylinder barrel;

[0013] 2. The present invention sets a grinding adjustment component, so that the sliding adjustment frame moves and the three movable adjustment frames are driven to move synchronously through the second circular guide rail. The three lifting frames are synchronously expanded or contracted centripetally under the mutual cooperation of the lifting guide groove, the inclined groove and the guide column. The grinding radius of the grinding roller is adjusted by adjusting the centripetal movement of the lifting frame, thereby achieving the effect of rust removal on the inner wall of the cylinder of hydraulic jacks of different specifications, and improving the flexibility and efficiency of the rust removal device;

[0014] 3. The present invention provides a reciprocating component, which drives the sliding frame to move back and forth in a straight line under the guidance of the fixed frame. The movement of the sliding frame drives the grinding roller, the rotating frame and the nozzle to move back and forth synchronously, thereby improving the effect of uniform rust removal on the inner wall of the hydraulic cylinder body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 It is a schematic diagram of the overall side structure of the present invention;

[0018] Figure 3 It is a schematic diagram of the structure of the reciprocating moving component in the present invention;

[0019] Figure 4 It is a structural schematic diagram of the sliding frame and the first connecting frame in the present invention;

[0020] Figure 5 It is a schematic diagram of the overall side section structure of the present invention;

[0021] Figure 6 It is a schematic diagram of the dissected structure of the conveying frame in the present invention;

[0022] Figure 7 It is a partial structural schematic diagram of the steam-driven injection assembly in the present invention;

[0023] Figure 8 It is a structural schematic diagram of the grinding adjustment component in the present invention;

[0024] Fig. 9 It is a schematic diagram of the disassembled structure of the lifting guide frame, the lifting frame and the movable adjustment frame in the present invention;

[0025] Fig.10It is a schematic diagram of the structure of the drive shaft and the turbine in the present invention;

[0026] Fig.11 It is a schematic diagram of the overall structure of the hydraulic jack in the present invention;

[0027] Fig.12 It is a schematic diagram of the structure of the hydraulic jack in the present invention in a side section;

[0028] Fig.13 for Figure 2 A schematic diagram of the structure enlargement at the center A;

[0029] Fig.14 for Figure 5 A schematic diagram of the structure enlarged at B in the middle;

[0030] Fig.15 for Figure 7 Enlarged schematic diagram of the structure at C in the middle.

[0031] In the figure: 1. Hydraulic jack body; 101. Base; 102. Oil tank; 103. Large cylinder chamber; 104. Top column; 105. Small cylinder chamber; 106. Piston; 107. Handle; 108. Oil inlet valve assembly; 109. Oil discharge valve assembly; 2. Bottom plate; 3. Fixed platform; 4. Fixed bracket; 5. Reciprocating moving assembly; 501. Fixed frame; 502. Reciprocating threaded rod; 503. Driving motor; 504 , slide; 505, sliding frame; 506, sliding block; 6, conveying frame; 601, steam conveying pipe; 602, outer frame; 603, first connecting frame; 604, second connecting frame; 7, steam driven injection assembly; 701, triangular fixing frame; 702, drive shaft; 703, turbine; 704, rotating frame; 705, nozzle; 706, first transmission shaft; 707, second transmission shaft; 708, No. 1 circular guide rail ; 709, rotating frame; 710, connecting plate; 711, No. 1 fixed gear ring; 712, No. 1 rotating gear; 713, No. 1 pulley block; 714, bellows; 8, grinding adjustment assembly; 801, first slide rail; 802, sliding adjustment frame; 803, second slide rail; 804, lifting guide frame; 805, lifting frame; 806, moving adjustment frame; 807, guide column; 808, lifting guide groove; 809, Inclined groove; 810, circular guide rail No. 2; 811, pulley block No. 2; 812, electric cylinder; 9, synchronous grinding assembly; 901, grinding roller; 902, universal coupling No. 1; 903, sliding shaft; 904, connecting shaft; 905, universal coupling No. 2; 906, extension frame; 907, driven shaft; 908, rotating gear No. 2; 909, fixed gear ring No. 2; 10, fixing fixture; 11, high-pressure steam generator. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] Example: Figure 1-15 As shown, the present invention provides a technical solution: a hydraulic jack, including a hydraulic jack body 1, the hydraulic jack body 1 includes a base 101, an oil tank 102 is provided on one side of the top of the base 101, a large cylinder cavity 103 is provided in the oil tank 102, a top column 104 is slidably provided on the inner wall of the large cylinder cavity 103, a small cylinder cavity 105 is provided on the other side of the top of the base 101, a piston 106 is slidably provided on the inner wall of the small cylinder cavity 105, a handle 107 used in conjunction with the piston 106 is provided on the top of the base 101, an oil inlet valve assembly 108 used in conjunction with the oil tank 102, the large cylinder cavity 103 and the small cylinder cavity 105 is provided in the base 101, and an oil discharge valve assembly 109 used in conjunction with the oil tank 102 and the large cylinder cavity 103 is provided on the other side of the base 101.

[0034] A cylinder inner wall rust removal device used for a hydraulic jack comprises a base plate 2, a fixed platform 3 is fixedly provided on one side of the top of the base plate 2, a fixed bracket 4 is fixedly provided on the other side of the top of the base plate 2, a reciprocating component 5 is provided on the fixed bracket 4, a conveying frame 6 is provided at the end of the reciprocating component 5, a steam-driven injection component 7 is provided in the conveying frame 6, a grinding adjustment component 8 is provided on the steam-driven injection component 7, a synchronous grinding component 9 is provided on the grinding adjustment component 8, a fixing fixture 10 is provided on the fixed platform 3, and a high-pressure steam generator 11 is provided on the top of the base plate 2 near the fixed bracket 4.

[0035] The reciprocating moving component 5 includes a fixed frame 501, which is fixedly installed on the top of the fixed bracket 4. A reciprocating threaded rod 502 is rotatably provided in the middle of the fixed frame 501. A driving motor 503 is fixedly provided at the bottom of the fixed frame 501, and the driving end of the driving motor 503 is connected to the reciprocating threaded rod 502 through a pulley transmission group. Two symmetrically distributed sliding grooves 504 are fixedly provided on both sides of the inner wall of the fixed frame 501, and a sliding frame 505 is slidably provided in the sliding groove 504. A sliding block 506 is threadedly sleeved on the outer wall of the reciprocating threaded rod 502, and the sliding block 506 is fixedly installed in the middle of the bottom end of the sliding frame 505.

[0036] By adopting the above technical solution, the sliding frame 505 can move back and forth on the fixed frame 501 .

[0037] The conveying frame 6 includes a steam conveying pipe 601, an outer frame 602 and a first connecting frame 603. The first connecting frame 603 is fixedly installed on the sliding frame 505. The outer frame 602 is fixedly installed on the outer wall of the steam conveying pipe 601. The first connecting frame 603 is fixedly installed on one side of the outer wall of the outer frame 602. A second connecting frame 604 is fixedly provided on the side of the outer wall of the outer frame 602 away from the first connecting frame 603.

[0038] By adopting the above technical solution, the steam delivery pipe 601 , the outer frame 602 , the first connecting frame 603 and the second connecting frame 604 are fixedly installed on the sliding frame 505 .

[0039] The steam driven injection assembly 7 includes three symmetrically distributed triangular fixed frames 701, a driving shaft 702 is rotatably provided in the triangular fixed frames 701, two symmetrically distributed turbines 703 are fixedly sleeved on the outer wall of the driving shaft 702, a rotating frame 704 is rotatably provided on the side of the steam delivery pipe 601 close to the second connecting frame 604, and the driving shaft 702 is fixedly connected to the rotating frame 704, and nozzles 705 are fixedly provided at both ends of the rotating frame 704, a first transmission shaft 706 used in conjunction with the driving shaft 702 is rotatably provided in the middle of the steam delivery pipe 601, and the first transmission shaft 706 is rotatably connected to the outer frame 602, a second transmission shaft 707 is rotatably provided on the top of the outer frame 602 close to the first transmission shaft 706, two symmetrically distributed No. 1 circular guide rails 708 are fixedly provided on the outer wall of the outer frame 602, rotating frames 709 are rotatably provided on the two No. 1 circular guide rails 708, and three connecting plates 710 distributed in a circular array are fixedly provided between the two rotating frames 709.

[0040] By adopting the above technical solution, the high-pressure steam flow drives the driving shaft 702 to rotate through the turbine 703, and the driving shaft 702 drives the rotating frame 709 and the connecting plate 710 to rotate through the first transmission shaft 706 and the second transmission shaft 707.

[0041] The grinding adjustment assembly 8 includes three first slide rails 801 distributed in a circular array, and the three first slide rails 801 are fixedly mounted on the outer wall of the first connecting frame 603. A sliding adjustment frame 802 is slidably provided on the first slide rail 801. Two symmetrically distributed second slide rails 803 are fixedly provided on the top of the connecting plate 710. A lifting guide frame 804 is fixedly provided in the middle of the top of the connecting plate 710. A lifting frame 805 is slidably provided on the lifting guide frame 804. Two symmetrically distributed lifting guide grooves 808 are provided on the lifting guide frame 804. A movable adjustment frame 806 is slidably provided on the second slide rail 803. Two symmetrically distributed inclined grooves 809 are provided on the movable adjustment frame 806, and a guide column 807 used in conjunction with the lifting guide groove 808 and the inclined groove 809 is fixedly provided on the lifting frame 805, and the guide column 807 slides in the lifting guide groove 808 and the inclined groove 809. A second circular guide rail 810 is fixedly provided on the side of the sliding adjustment frame 802 close to the movable adjustment frame 806, and the movable adjustment frame 806 slides on the second circular guide rail 810, and an electric cylinder 812 is fixedly provided in the middle of the top end of the first connecting frame 603, and the driving end of the electric cylinder 812 is fixedly connected to the sliding adjustment frame 802.

[0042] By adopting the above technical solution, the lifting guide frame 804 can be lifted, moved and adjusted under the guidance of the lifting guide frame 804 and the movable adjustment frame 806 .

[0043] The synchronous grinding assembly 9 includes three grinding rollers 901, which are rotatably mounted on the corresponding lifting frames 805, and the lifting guide frame 804 is fixed with an extension frame 906 on one side close to the second connecting frame 604. A universal coupling 902 is fixedly provided at one end of the grinding roller 901 close to the extension frame 906, and a sliding shaft 903 is fixedly provided at the other end of the universal coupling 902. A connecting shaft 904 is slidingly sleeved on the outer wall of the sliding shaft 903. The connecting shaft A No. 2 universal coupling 905 is fixedly provided at the bottom end of 904, a driven shaft 907 is fixedly provided at the other end of the No. 2 universal coupling 905, and the driven shaft 907 is rotatably installed on the extension frame 906, a No. 2 rotating gear 908 is fixedly provided on the outer wall of the driven shaft 907, a No. 2 fixed gear ring 909 used in conjunction with the No. 2 rotating gear 908 is fixedly provided on the outer wall of the second connecting frame 604, and the No. 2 rotating gear 908 is meshingly connected with the No. 2 fixed gear ring 909.

[0044] By adopting the above technical solution, the three grinding rollers 901 can rotate along with the rotation of the movable rotating frame 709 and the connecting plate 710.

[0045] The driving shaft 702 is connected to the first transmission shaft 706 through a bevel gear set, and the first transmission shaft 706 is connected to the second transmission shaft 707 through a bevel gear set. A number one rotating gear 712 is fixedly provided at the end of the second transmission shaft 707, and a number one fixed gear ring 711 used in conjunction with the number one rotating gear 712 is fixedly sleeved on the outer wall of the outer frame 602, and the number one fixed gear ring 711 is meshedly connected to the number one rotating gear 712.

[0046] By adopting the above technical solution, the driving shaft 702 drives the first transmission shaft 706 to rotate, and the first transmission shaft 706 drives the second transmission shaft 707 to rotate.

[0047] The inner wall of the rotating frame 709 is fixed with six pulley blocks 713 distributed in a circular array, and the pulley block 713 slides on the circular guide rail 708. The movable adjustment frame 806 is provided with a pulley block 811 on the side close to the sliding adjustment frame 802, and the pulley block 811 slides on the circular guide rail 810.

[0048] By adopting the above technical solution, the rotating frame 709 is rotated on the first circular guide rail 708 through the first pulley group 713, and the movable adjustment frame 806 is slid on the second circular guide rail 810 through the second pulley group 811.

[0049] A bellows 714 is connected to one side of the steam delivery pipe 601 close to the sliding frame 505 , and the other end of the bellows 714 is connected to the gas outlet of the high-pressure steam generator 11 .

[0050] By adopting the above technical solution, the high-pressure steam gas flow generated by the high-pressure steam generator 11 is transported to the steam delivery pipe 601 through the bellows 714 .

[0051] Working principle: First, during the use of the hydraulic jack body 1, the handle 107 is pulled up, and the handle 107 drives the piston 106 to reciprocate in the small cylinder cavity 105. Under the action of the oil inlet valve assembly 108, the hydraulic oil in the oil tank 102 is transported to the large cylinder cavity 103. Through the transfer of hydraulic oil, the top column 104 is lifted up to support the heavy object. After the use of the hydraulic jack body 1 is completed, the hydraulic oil in the large cylinder cavity 103 is returned to the oil tank 102 through the oil drain valve assembly 109;

[0052] When the cylinder in the hydraulic jack body 1 is disassembled and placed for too long and the inner wall is rusted, the rusted cylinder is placed on the fixing fixture 10, the cylinder is clamped and fixed by the fixing fixture 10, and then the high-pressure steam generator 11 is controlled to start, and the high-pressure steam generator 11 generates a large amount of high-pressure steam airflow which is continuously transported to the steam delivery pipe 601 through the bellows 714. The high-pressure steam airflow contacts the turbine 703 and drives the drive shaft 702 to rotate through the turbine 703. The drive shaft 702 drives the rotating frame 704 and the nozzle 705 to rotate synchronously. The high-pressure steam airflow is transported to the rotating frame 704 along the steam delivery pipe 601 and is ejected under the action of the nozzle 705. The high-pressure steam is transported to the rotating frame 704 and the nozzle 705. The head 705 rotates and sprays out under the action of the drive shaft 702. While the drive shaft 702 rotates, it drives the first transmission shaft 706 to rotate through the bevel gear set. The first transmission shaft 706 drives the second transmission shaft 707 to rotate through the bevel gear set. The second transmission shaft 707 drives the rotating frame 709 and the connecting plate 710 to rotate on the first circular guide rail 708 through the first rotating gear 712 and the first fixed gear ring 711. The lifting guide frame 804, the lifting frame 805 and the grinding roller 901 rotate synchronously with the rotation of the rotating frame 709 and the connecting plate 710. At this time, the moving adjustment frame 806 rotates synchronously under the action of the second pulley set 811 and the second circular guide rail 810. During the rotation process, the lifting guide frame 804 The extension frame 906 rotates synchronously. In this process, the second rotating gear 908 drives the driven shaft 907 to rotate under the action of the second fixed gear ring 909. The driven shaft 907 drives the corresponding rotating roller to rotate through the first universal coupling 902, the sliding shaft 903, the connecting shaft 904 and the second universal coupling 905. Finally, the driving motor 503 is controlled to be turned on. The driving end of the driving motor 503 drives the reciprocating threaded rod 502 to rotate through the pulley transmission group. The reciprocating threaded rod 502 drives the sliding frame 505 to reciprocate under the guidance of the fixed frame 501 and the slide groove 504 through the sliding block 506. The grinding roller 901 moves synchronously with the movement of the sliding frame 505. When the cylinders of different specifications are When removing rust from the inner wall, the driving end of the electric cylinder 812 is controlled to extend, and the electric cylinder 812 pushes the sliding adjustment frame 802 to move under the guidance of the first slide rail 801. The first slide rail 801 drives the three movable adjustment frames 806 to move under the guidance of the corresponding second slide rail 803 through the second circular guide rail 810. During the movement, the movable adjustment frame 806 drives the three lifting frames 805 to expand and move outward synchronously through the mutual cooperation of the lifting guide groove 808, the inclined groove 809 and the guide column 807. Conversely, the driving end of the electric cylinder 812 can be controlled to contract. The distance of the grinding roller 901 can be adjusted by the synchronous centripetal expansion or contraction of the three lifting frames 805 to achieve rust removal on the inner walls of cylinders of different specifications.

[0053] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A hydraulic jack, comprising a hydraulic jack body (1), characterized in that: The hydraulic jack body (1) comprises a base (101), an oil tank (102) is provided on one side of the top of the base (101), a large cylinder cavity (103) is provided in the oil tank (102), a top column (104) is slidably provided on the inner wall of the large cylinder cavity (103), a small cylinder cavity (105) is provided on the other side of the top of the base (101), a piston (106) is slidably provided on the inner wall of the small cylinder cavity (105), a handle (107) used in conjunction with the piston (106) is provided on the top of the base (101), an oil inlet valve assembly (108) used in conjunction with the oil tank (102), the large cylinder cavity (103) and the small cylinder cavity (105) is provided in the base (101), and an oil discharge valve assembly (109) used in conjunction with the oil tank (102) and the large cylinder cavity (103) is provided on the other side of the base (101).

2. The cylinder inner wall rust removal device used in a hydraulic jack as claimed in claim 1, comprising a bottom plate (2), characterized in that: A fixed platform (3) is fixedly provided on one side of the top of the base plate (2), a fixed bracket (4) is fixedly provided on the other side of the top of the base plate (2), a reciprocating component (5) is provided on the fixed bracket (4), a conveying frame (6) is provided at the end of the reciprocating component (5), a steam-driven injection component (7) is provided in the conveying frame (6), a grinding adjustment component (8) is provided on the steam-driven injection component (7), a synchronous grinding component (9) is provided on the grinding adjustment component (8), a fixing fixture (10) is provided on the fixed platform (3), and a high-pressure steam generator (11) is provided on the top of the base plate (2) near the fixed bracket (4).

3. The rust removal device for the inner wall of a cylinder used in a hydraulic jack as claimed in claim 2, characterized in that: The reciprocating moving component (5) comprises a fixed frame (501), wherein the fixed frame (501) is fixedly mounted on the top of the fixed bracket (4), a reciprocating threaded rod (502) is rotatably mounted in the middle of the fixed frame (501), a driving motor (503) is fixedly mounted at the bottom of the fixed frame (501), and the driving end of the driving motor (503) is connected to the reciprocating threaded rod (502) through a pulley transmission group, two symmetrically distributed sliding grooves (504) are fixedly mounted on both sides of the inner wall of the fixed frame (501), a sliding frame (505) is slidably mounted in the sliding groove (504), a sliding block (506) is threadedly sleeved on the outer wall of the reciprocating threaded rod (502), and the sliding block (506) is fixedly mounted in the middle of the bottom end of the sliding frame (505).

4. The rust removal device for the inner wall of a cylinder used in a hydraulic jack as claimed in claim 2, characterized in that: The conveying frame (6) comprises a steam conveying pipe (601), an outer frame (602) and a first connecting frame (603); the first connecting frame (603) is fixedly mounted on a sliding frame (505); the outer frame (602) is fixedly mounted on an outer wall of the steam conveying pipe (601); the first connecting frame (603) is fixedly mounted on one side of an outer wall of the outer frame (602); and a second connecting frame (604) is fixedly mounted on a side of the outer wall of the outer frame (602) away from the first connecting frame (603).

5. The rust removal device for the inner wall of a cylinder used in a hydraulic jack as claimed in claim 4, characterized in that: The steam driven spray assembly (7) comprises three symmetrically distributed triangular fixed frames (701), a driving shaft (702) is rotatably provided in the triangular fixed frames (701), two symmetrically distributed turbines (703) are fixedly sleeved on the outer wall of the driving shaft (702), a rotating frame (704) is rotatably provided on one side of the steam delivery pipe (601) close to the second connection frame (604), the driving shaft (702) is fixedly connected to the rotating frame (704), nozzles (705) are fixedly provided at both ends of the rotating frame (704), and a central portion of the steam delivery pipe (601) is provided with a rotating frame (704). A first transmission shaft (706) is rotatably provided for use with the drive shaft (702), and the first transmission shaft (706) is rotatably connected to the outer frame (602); a second transmission shaft (707) is rotatably provided on the top of the outer frame (602) close to the first transmission shaft (706); two symmetrically distributed No. 1 circular guide rails (708) are fixedly provided on the outer wall of the outer frame (602); a rotating frame (709) is rotatably provided on the two No. 1 circular guide rails (708); and three connecting plates (710) distributed in a circular array are fixedly provided between the two rotating frames (709).

6. The rust removal device for the inner wall of a cylinder used in a hydraulic jack as claimed in claim 5, characterized in that: The grinding adjustment assembly (8) comprises three first slide rails (801) distributed in a circular array, the three first slide rails (801) are fixedly mounted on the outer wall of the first connecting frame (603), a sliding adjustment frame (802) is slidably provided on the first slide rail (801), two symmetrically distributed second slide rails (803) are fixedly provided on the top of the connecting plate (710), a lifting guide frame (804) is fixedly provided in the middle of the top of the connecting plate (710), a lifting frame (805) is slidably provided on the lifting guide frame (804), two symmetrically distributed lifting guide grooves (808) are provided on the lifting guide frame (804), and a movable adjustment frame (806) is slidably provided on the second slide rail (803). ), the movable adjustment frame (806) is provided with two symmetrically distributed inclined grooves (809), the lifting frame (805) is fixedly provided with a guide column (807) used in conjunction with the lifting guide groove (808) and the inclined groove (809), and the guide column (807) slides in the lifting guide groove (808) and the inclined groove (809), the sliding adjustment frame (802) is fixedly provided with a second circular guide rail (810) on the side close to the movable adjustment frame (806), and the movable adjustment frame (806) slides on the second circular guide rail (810), the first connecting frame (603) is fixedly provided with an electric cylinder (812) in the middle of the top, and the driving end of the electric cylinder (812) is fixedly connected to the sliding adjustment frame (802).

7. The rust removal device for the inner wall of a cylinder used in a hydraulic jack as claimed in claim 6, characterized in that: The synchronous grinding assembly (9) comprises three grinding rollers (901), and the three grinding rollers (901) are rotatably mounted on the corresponding lifting frames (805) respectively. An extension frame (906) is fixedly provided on the side of the lifting guide frame (804) close to the second connecting frame (604). A first universal coupling (902) is fixedly provided on one end of the grinding roller (901) close to the extension frame (906). A sliding shaft (903) is fixedly provided on the other end of the first universal coupling (902). A connecting shaft (904) is slidingly sleeved on the outer wall of the sliding shaft (903). A No. 2 universal joint (905) is fixedly provided at the bottom end of the connecting shaft (904), a driven shaft (907) is fixedly provided at the other end of the No. 2 universal joint (905), and the driven shaft (907) is rotatably mounted on the extension frame (906), a No. 2 rotating gear (908) is fixedly sleeved on the outer wall of the driven shaft (907), a No. 2 fixed gear ring (909) used in conjunction with the No. 2 rotating gear (908) is fixedly sleeved on the outer wall of the second connecting frame (604), and the No. 2 rotating gear (908) is meshingly connected with the No. 2 fixed gear ring (909).

8. The rust removal device for the inner wall of a cylinder used in a hydraulic jack as claimed in claim 5, characterized in that: The driving shaft (702) is connected to the first transmission shaft (706) through a bevel gear set, the first transmission shaft (706) is connected to the second transmission shaft (707) through a bevel gear set, a first rotating gear (712) is fixedly provided at the end of the second transmission shaft (707), a first fixed gear ring (711) used in conjunction with the first rotating gear (712) is fixedly sleeved on the outer wall of the outer frame (602), and the first fixed gear ring (711) is meshedly connected to the first rotating gear (712).

9. The rust removal device for the inner wall of a cylinder used in a hydraulic jack as claimed in claim 6, characterized in that: The inner wall of the rotating frame (709) is fixedly provided with six first pulley groups (713) distributed in a circular array, and the first pulley group (713) slides on the first circular guide rail (708). The movable adjustment frame (806) is provided with a second pulley group (811) on the side close to the sliding adjustment frame (802), and the second pulley group (811) slides on the second circular guide rail (810).

10. The rust removal device for the inner wall of a cylinder used in a hydraulic jack according to claim 4, characterized in that: The steam delivery pipe (601) is connected to a bellows (714) on one side close to the sliding frame (505), and the other end of the bellows (714) is connected to the gas outlet of the high-pressure steam generator (11).

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