Hydraulic device for repairing sintering pallet

Abstract

The utility model provides a hydraulic device for sintering pallet repair, which belongs to the technical field of sintering pallet repair and comprises a hydraulic cylinder placed on a reinforcing rib of a pallet body, wheel shafts are symmetrically arranged on two sides of the pallet body through shaft sleeves, the hydraulic cylinder is positioned at axial positions of the two mutually symmetrical wheel shafts, ejector rods are fixed at two ends of the hydraulic cylinder, and the ejector rods are connected with the hydraulic cylinder. The hydraulic cylinder can drive the ejector rod to linearly move towards the axle, a baffle is placed on the side, facing the ejector rod, of one shaft sleeve, the baffle covers the axle on the surface of the shaft sleeve, and when the hydraulic cylinder is started, the ejector rod facing the side of the baffle can abut against the surface of the baffle, so that the ejector rod cannot apply thrust to the axle. The other ejector rod can abut against the axial face of the wheel shaft and apply thrust to the axial face of the wheel shaft. Through the cooperation of the ejector rods at the two ends of the hydraulic cylinder and the baffles, the two-way dismantling function of the symmetrical wheel axle is achieved, carrying operation is reduced, the labor intensity of workers is reduced, the wheel axle dismantling period is shortened, and then work efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to sintering trolley repair technical field, concretely relates to a kind of hydraulic device for sintering trolley repair. BACKGROUND

[0002] In industrial production, sintering trolley as important equipment component, its running condition directly influences the continuity and stability of enterprise production. Sintering trolley axle in long-term operation process, due to bearing heavy load and high-speed rotation, axle surface is prone to form wear area, leading to dimensional accuracy drop. Long-term wear can lead to the strength reduction of axle, and further influence its carrying capacity, so when axle appears wear, axle needs to be removed from the sleeve.

[0003] Traditional axle removal process is often more complex and time-consuming, since wheel axle and sleeve are usually adopted interference fit or fastening connection mode, removal needs to use hydraulic jack and other equipment to cooperate with manual operation of staff.

[0004] Traditional one sintering trolley has four axles, four axles are symmetrically distributed on the two sides of trolley by two, and staff needs to use jack to remove axle on trolley in sequence after axle is removed by staff, and then jack is carried to the position of another axle to remove, until four axles are completely removed. Since back-and-forth carrying and removing equipment inevitably increases labor intensity of staff, and carrying and the process of jack fixing also waste operating time, so this traditional removal method can lead to removal work efficiency reduction. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides a kind of hydraulic device for sintering trolley repair, can realize bidirectional removal by hydraulic cylinder, reduces carrying frequency, to reduce labor intensity of staff, and shorten axle removal construction period, and further can improve work efficiency.

[0006] To solve the above-mentioned technical problems, this utility model provides a hydraulic device for repairing a sintering trolley, including a hydraulic cylinder placed on the reinforcing rib of the trolley by an external hoisting device. Bushings are symmetrically installed on both sides of the trolley, each bushing having two pin holes through which a wheel axle is inserted. The hydraulic cylinder is located axially on the two symmetrical wheel axles. A push rod is fixed to both the output end and the end of the cylinder body. A baffle is placed on the side of one bushing facing the push rod, and the baffle covers the wheel axle on the surface of the bushing. When the hydraulic cylinder is activated, the push rod facing the baffle can abut against the baffle surface, preventing it from applying thrust to the wheel axle. The push rod can abut against the axial surface of another symmetrical axle and apply a thrust to it, thereby pushing the axle out. After one axle is pushed out, the hydraulic cylinder is activated to retract and reset the push rod at its output end. Then, the baffle is removed and placed on the surface of the bushing after the axle has been disassembled, so that the baffle blocks the push rod on one side of the hydraulic cylinder output end. Finally, the hydraulic cylinder is activated again, so that the push rod on the cylinder body abuts against the axle and pushes it out of the bushing. Thus, the two symmetrical axles can be removed one by one by simply moving the baffle, achieving bidirectional disassembly without the need to move hydraulic equipment, thereby reducing the labor intensity of workers and shortening the axle disassembly period, thus improving work efficiency.

[0007] A limiting plate is welded to the center of the hydraulic cylinder. When the hydraulic cylinder is hoisted onto the trolley, the bottom of the limiting plate can overlap the reinforcing ribs of the trolley, preventing the hydraulic cylinder from rolling due to external factors. This allows the limiting plate to limit and fix the hydraulic cylinder. Furthermore, when the axle is ejected, if the cylinder body of the hydraulic cylinder shifts, the limiting plate will shift synchronously with the hydraulic cylinder, ensuring that the hydraulic cylinder can only move in a straight line without deflection.

[0008] The upper part of the limit plate has a through hole for hoisting. External hoisting equipment can hoist the limit plate and hydraulic cylinder together through the through hole, which makes it easy for the hoisting equipment to lift the hydraulic cylinder through the limit plate.

[0009] The limiting plate has an isosceles trapezoidal structure, and the hydraulic cylinder is welded to the lower center of the limiting plate. The trapezoidal design of the limiting plate can further improve the stability of the hydraulic cylinder.

[0010] A hydraulic station is installed outside the hydraulic cylinder. The hydraulic station is connected to the hydraulic cylinder through a connecting pipe. The oil pump in the hydraulic station inputs hydraulic oil into the hydraulic cylinder through the connecting pipe to start the hydraulic cylinder to push out the wheel axle.

[0011] The connecting pipe is threaded to the oil inlet of the hydraulic cylinder, and filters are added to the oil inlet of the hydraulic cylinder and the oil outlet of the hydraulic station pump. The hydraulic oil in the connecting pipe is filtered by the filters to further improve the cleanliness of the hydraulic oil, prevent impurities from entering the system and damaging the hydraulic components, and improve the service life of the equipment.

[0012] The upper through hole of the limiting plate is provided with a through hole, when the connecting pipe is installed, the connecting pipe is passed through the through hole on the surface of the limiting plate, and then connected to the oil inlet of the hydraulic cylinder, so that the limiting plate plays a guiding role on the connecting pipe, and prevents the connecting pipe from winding and uneven distribution.

[0013] The surface of the hydraulic cylinder is provided with a guide block, and the guide block is provided with a through hole in the center, and the connecting pipe of the hydraulic station is connected to the oil inlet of the hydraulic cylinder after being passed through the through holes of the limiting plate and the guide block, and the connecting pipe is sequentially passed through the through holes of the limiting plate and the guide block, and then connected to the oil inlet of the hydraulic cylinder, so as to further improve the guiding effect on the connecting pipe and improve the neatness of the connecting pipe arrangement.

[0014] Compared with the prior art, the present application has at least one of the following beneficial technical effects:

[0015] 1. The bidirectional disassembly function significantly improves the efficiency, and the utility model discloses a hydraulic cylinder double-end ejector rod cooperates with the baffle, realizes the bidirectional disassembly function of symmetrical wheel shafts. Only need to move the baffle position can eject two sides wheel shafts in turn, do not need to repeat the hydraulic equipment. Compared with the traditional single-point disassembly mode, the structure makes single equipment installation can complete the disassembly of two symmetrical wheel shafts, reduces the carrying operation, reduces the labor intensity of staff, and shortens the wheel shaft disassembly period, and further can improve the work efficiency.

[0016] 2. The trapezoidal limiting plate enhances the stability of the equipment, and the trapezoidal limiting plate welded in the middle of the hydraulic cylinder forms a three-point support structure: the bottom edge is in contact with the trolley reinforcing rib, and the side slope forms an anti-overturning moment, effectively preventing the hydraulic cylinder from rolling or deflecting during operation, ensuring the axial accuracy of the ejecting operation, and avoiding damage to the wheel shaft or shaft sleeve caused by equipment displacement.

[0017] 3. The double-stage filtering system prolongs the service life of the equipment, and the double filter is arranged at the oil inlet of the hydraulic cylinder and the oil outlet of the hydraulic station, forming a gradient filtering system, which can reduce the wear rate of hydraulic components to a greater extent compared with the traditional single filtering system, prolong the service life of the equipment, and reduce the system failure rate caused by oil pollution.

[0018] 4. The three-dimensional guiding system optimizes the pipeline layout, and the composite guiding structure formed by the through hole of the limiting plate and the guide block makes the connecting pipe form a flexible path. Compared with the free arrangement mode, the pipeline stress concentration problem can be reduced to a certain extent, and the pipeline winding and wear can be effectively prevented. At the same time, the pipeline maintenance time is shortened. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of the hydraulic cylinder of the utility model;

[0020] Figure 2The utility model discloses a hydraulic cylinder hoisting device trolley structure schematic diagram;

[0021] Figure 3 The utility model discloses a hydraulic cylinder mounting connecting pipe after structure front view schematic diagram;

[0022] Figure 4 The utility model discloses a hydraulic cylinder mounting connecting pipe after structure front view schematic diagram; Figure 2 The utility model discloses a hydraulic cylinder mounting connecting pipe after structure front view schematic diagram.

[0023] Mark explanation:

[0024] 100, hydraulic cylinder, 101, top rod, 102, limiting plate, 103, guide block, 104, connecting pipe, 200, trolley, 300, shaft sleeve, 301, axle, 400, baffle. Specific implementation

[0025] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the following will combine the utility model embodiment's attached Figures 1-4 The technical scheme of the utility model embodiment is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiment. Based on the described embodiment of the utility model, all other embodiments obtained by the person skilled in the art belong to the scope of the utility model protection.

[0026] A kind of hydraulic device for sintering trolley 200 repair, as shown in Figure 1 , Figure 2 And Figure 4 It includes the hydraulic cylinder 100 placed on the reinforcing rib of trolley 200, when needing to remove axle 301, trolley 200 needs to be overturned to bottom upwards, then the hydraulic cylinder 100 is placed on the reinforcing rib of trolley 200 by external hoisting equipment, two sides of trolley 200 are symmetrically equipped with shaft sleeve 300, two pin holes are formed on each shaft sleeve 300, axle 301 is inserted by pin hole, the output end of hydraulic cylinder 100 and the end of cylinder body are all fixed with top rod 101, one of shaft sleeve 300 is placed with baffle 400 towards the side of top rod 101, and the area of baffle 400 is greater than the area of axle 301, so that baffle 400 can cover on the surface of axle 301;

[0027] If needing to remove axle 301 towards the output end side of hydraulic cylinder 100 first, baffle 400 is placed on the shaft sleeve 300 on the side symmetrical with the axle 301 to be removed, so that baffle 400 is blocked in the position between top rod 101 and axle 301 on the side of the cylinder body of hydraulic cylinder 100, and top rod 101 on the side of the cylinder body abuts on the surface of baffle 400;

[0028] When the hydraulic cylinder 100 is started at this time, the output end of the hydraulic cylinder 100 extends outward, so that the jacks 101 move in the direction of the wheel shaft 301, until the jacks 101 abut against the axial surface of the wheel shaft 301, and because the baffle 400 blocks the jacks 101 on the side of the hydraulic cylinder 100, the jacks 101 on the output end side of the hydraulic cylinder 100 apply a pushing force to the surface of the wheel shaft 301, so as to push the wheel shaft 301 out of the shaft sleeve 300.

[0029] When another wheel shaft 301 that is symmetrical to the wheel shaft 301 needs to be disassembled, the output end of the hydraulic cylinder 100 is retracted, so that the jacks 101 at the output end are reset, and then the baffle 400 is removed from between the jacks 101 and the shaft sleeve 300, and is placed on the surface of the shaft sleeve 300 after the wheel shaft 301 is disassembled, so that the baffle 400 blocks the jacks 101 on the output end side of the hydraulic cylinder 100;

[0030] Then the hydraulic cylinder 100 is started again, and the jacks 101 at the output end of the hydraulic cylinder 100 abut against the position of the baffle 400, because the jacks 101 at the output end of the hydraulic cylinder 100 are blocked by the baffle 400, and the output end of the hydraulic cylinder 100 continues to extend outward, so that the cylinder body of the hydraulic cylinder 100 moves to the position where the wheel shaft 301 is disassembled, so that the jacks 101 on the cylinder body of the hydraulic cylinder 100 abut against the wheel shaft 301 and push it out of the shaft sleeve 300, so that the wheel shaft 301 on the other side can be taken out in turn only by moving the position of the baffle 400, achieving bidirectional disassembly, without the need to move the hydraulic equipment, thereby reducing the labor intensity of the workers, and shortening the disassembly period of the wheel shaft 301, and further improving the work efficiency.

[0031] Because two wheel shafts 301 are installed on each shaft sleeve 300, when the two wheel shafts 301 that are symmetrical to each other are disassembled, the hydraulic cylinder 100 is moved to between the other two wheel shafts 301 that are symmetrical to each other through hoisting equipment, so as to be disassembled again, and because the shaft sleeve 300 needs to be heated to expand when the wheel shaft 301 is installed, so as to realize interference fit installation of the wheel shaft 301, when disassembling, a through hole can be opened on the side of the wheel shaft 301 that is pushed by the jacks 101 to release the stress generated by the interference fit, so that the wheel shaft 301 is pushed out more conveniently and quickly.

[0032] Specifically, the center of the hydraulic cylinder 100 is provided with a limiting plate 102 by welding, when the hydraulic cylinder 100 is hoisted to the trolley 200, the bottom of the limiting plate 102 can be overlapped on the reinforcing rib of the trolley 200, so that the hydraulic cylinder 100 will not roll due to external reasons, so that the limiting plate 102 limits and fixes the hydraulic cylinder 100, and when the ejection axle 301 is ejected, if the cylinder body of the hydraulic cylinder 100 is displaced, the limiting plate 102 will be displaced synchronously with the hydraulic cylinder 100, and during the movement, due to the resistance of the baffle 400 and the axle 301 on both ends of the hydraulic cylinder 100, the hydraulic cylinder 100 can only appear linear displacement and will not be skewed.

[0033] Specifically, the upper part of the limiting plate 102 is provided with a through hole for hoisting, and the external hoisting equipment can hoist the limiting plate 102 together with the hydraulic cylinder 100 through the through hole, and the hoisting equipment can hoist the hydraulic cylinder 100 through the limiting plate 102 through the hoisting hole.

[0034] Specifically, the limiting plate 102 is isosceles trapezoidal, and the hydraulic cylinder 100 is arranged at the lower center of the limiting plate 102 by welding, and the trapezoidal limiting plate 102 can further improve the stability of the hydraulic cylinder 100.

[0035] According to Figure 3 As shown in the figure, the hydraulic cylinder 100 is provided with a hydraulic station, and the hydraulic station is connected with the hydraulic cylinder 100 through a connecting pipe 104, and the oil pump in the hydraulic station inputs hydraulic oil into the hydraulic cylinder 100 through the connecting pipe 104 to start the hydraulic cylinder 100 to eject the axle 301.

[0036] Specifically, the connecting pipe 104 is connected with the oil inlet of the hydraulic cylinder 100 by screw thread, and a filter is additionally arranged at the oil inlet of the hydraulic cylinder 100, the hydraulic oil in the connecting pipe 104 is filtered through the filter, so as to further improve the cleanliness of the hydraulic oil, prevent impurities from entering the system and causing damage to the hydraulic element, thereby prolonging the service life of the equipment, and a filter can also be arranged at the oil outlet of the oil pump of the hydraulic station to further improve the filtering effect.

[0037] According to Figure 1 and Figure 3 As shown in the figure, the limiting plate 102 is provided with a through hole, and the connecting pipe 104 is made of flexible material, such as soft rubber tube, when the connecting pipe 104 is installed, the connecting pipe 104 is connected to the oil inlet of the hydraulic cylinder 100 after passing through the through hole on the surface of the limiting plate 102, so as to guide the connecting pipe 104 and prevent the connecting pipe 104 from winding and distributing unevenly.

[0038] Further, the surface side of the hydraulic cylinder 100 is provided with a guide block 103, a through hole is formed in the center of the guide block 103, the connecting pipes 104 of the hydraulic station are connected at the oil inlet of the hydraulic cylinder 100 after respectively penetrating the through holes of the limiting plates 102 and the guide block 103, and when installing the connecting pipes 104, the connecting pipes 104 can be sequentially penetrated through the through holes of the limiting plates 102 and the guide block 103 and then connected to the oil inlet of the hydraulic cylinder 100, so that the guiding effect of the connecting pipes 104 is further improved and the arrangement neatness of the connecting pipes 104 is improved through the cooperation of the guide block 103 and the limiting plates 102.

[0039] The above is the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be considered as the protection scope of the present application.

Claims

1. A hydraulic device for sintering pallet repair, comprising a hydraulic cylinder (100) placed on the stringer of a pallet (200), both sides of the pallet (200) are symmetrically provided with an axle (301) through a bearing bush (300), and the hydraulic cylinder (100) is located at the axial position of the two mutually symmetric axles (301), characterized in that: The hydraulic cylinder (100) is fixed with a top rod (101) at both ends, and the hydraulic cylinder (100) can drive the top rod (101) to move linearly towards the wheel shaft (301); One of the shaft sleeves (300) is provided with a baffle (400) on the side facing the top rod (101), and the baffle (400) covers the wheel shaft (301) on the surface of the shaft sleeve (300); When the hydraulic cylinder (100) is started, the top rod (101) on the side facing the baffle (400) can abut against the surface of the baffle (400), so that it cannot apply a pushing force to the wheel shaft (301), and the other top rod (101) can abut against the axial surface of the wheel shaft (301) and apply a pushing force to it.

2. A sintering pallet repair hydraulic device according to claim 1, characterized in that: The hydraulic cylinder (100) is fixed with a limiting plate (102) at the center, and when the hydraulic cylinder (100) is placed on the trolley (200), the limiting plate (102) can be lapped on the reinforcing rib of the trolley (200), and the limiting plate (102) is used for limiting the hydraulic cylinder (100) to prevent the hydraulic cylinder (100) from rotating along the axial position.

3. A sintering pallet repair hydraulic device as claimed in claim 2, characterized in that: The upper part of the limiting plate (102) is provided with a through hole for lifting, and the external lifting equipment can lift the limiting plate (102) together with the hydraulic cylinder (100) through the through hole.

4. A sintering pallet repair hydraulic device as claimed in claim 3, characterized in that: The limiting plate (102) is isosceles trapezoidal in structure, and the hydraulic cylinder (100) is arranged at the lower center of the limiting plate (102) by welding.

5. A sintering pallet repair hydraulic device as claimed in claim 4, characterized in that: The hydraulic cylinder (100) is provided with a hydraulic station outside, and the hydraulic station is connected with the hydraulic cylinder (100) through a connecting pipe (104).

6. A sintering pallet repair hydraulic device as claimed in claim 5, characterized in that: A filter is additionally arranged at the oil inlet of the hydraulic cylinder (100), and the filter is used for filtering the hydraulic oil in the connecting pipe (104).

7. A sinter pallet repairing hydraulic device as claimed in claim 5, characterized in that: The limiting plate (102) is provided with a through hole for penetrating the connecting pipe (104), and the connecting pipe (104) penetrates the through hole on the surface of the limiting plate (102) and is connected with the hydraulic cylinder (100) and the hydraulic station.

8. The hydraulic apparatus for repairing a sintering pallet as claimed in claim 5, wherein: The surface of the hydraulic cylinder (100) is provided with a guide block (103), and the guide block (103) is provided with a through hole at the center, and the connecting pipe (104) of the hydraulic station penetrates the through holes of the limiting plate (102) and the guide block (103) and is connected at the oil inlet of the hydraulic cylinder (100).

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