Self-locking sliding shoe device

Abstract

The invention relates to a self-locking sliding shoe device which comprises a sliding rail, a sliding shoe body and a hydraulic pushing device. A plurality of clamping grooves are formed in the two sides of the top surface of the sliding rail; the sliding shoe body comprises a sliding support and a jacking supporting frame. The bottom of the sliding support makes sliding contact with the bottom of the sliding groove. The jacking supporting frame is fixed to the top of the sliding support. The hydraulic pushing device comprises a pushing bracket, a driving cylinder, two mounting brackets and four buckles; the bottom of the pushing bracket is in sliding contact with the bottom of the chute; the driving cylinder is fixed in the pushing bracket; an output shaft of the driving cylinder is fixedly connected with the sliding bracket; the two installation supports are fixed to the tops of the two outer side faces of the pushing support. And the four buckles are rotationally mounted in the two mounting brackets through rotating shafts. Self-locking of the hydraulic pushing device is achieved through the buckles and the clamping grooves, the locking strength is high, the slipping phenomenon occurring in the furnace shell pushing process can be avoided, the synchronism of a pushing system is guaranteed, and high-precision pushing is achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of blast furnace engineering, and in particular relates to a self-locking sliding shoe device. Background Art

[0002] Slippers and tracks are an important combination in engineering applications, and they are usually used in sliding construction of large structures.

[0003] At present, the construction period of blast furnace transformation at home and abroad is short and the construction period is tight. As the main line project of blast furnace system transformation, the blast furnace body directly affects the commissioning time of the blast furnace system. The rapid overhaul of large blast furnaces is mostly done by offline prefabrication and assembly, and the overall segmented movement. This technology can greatly shorten the construction period.

[0004] The sliding shoe device is required in the construction process of offline prefabrication and assembly and overall segmented pushing of large blast furnaces. The traditional sliding shoe device includes a sliding track, a sliding shoe body and a hydraulic jacking device. One end of the hydraulic jacking device is connected to the sliding track with a wedge-shaped clamping block, and the other end is connected to the sliding shoe. When the oil cylinder extends, the clamping block works (clamps) and automatically locks the sliding track; when the oil cylinder retracts, the clamping block does not work (loosens) and moves in the same direction as the oil cylinder. This locking method of clamping the sliding track by the clamping block relies on friction for tightening. The sliding shoe body is prone to slipping during the pushing process, affecting the synchronization and pushing accuracy of the entire system. Summary of the invention

[0005] The main purpose of the present invention is to propose a self-locking sliding shoe device, which can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] A self-locking sliding shoe device comprises a sliding track, a sliding shoe body and a hydraulic pushing device;

[0008] The sliding track is a groove-type track, with a sliding groove in the middle of the top surface and a plurality of clamping grooves on both sides of the top surface;

[0009] The sliding shoe body is slidably arranged in the sliding groove, and the sliding shoe body includes

[0010] A sliding bracket, the bottom of which is in sliding contact with the bottom of the slide groove;

[0011] A lifting support frame, fixed on the top of the sliding support, used to support the furnace shell;

[0012] The hydraulic pushing device is slidably arranged in the slide groove, and the hydraulic pushing device includes

[0013] Push the bracket so that the bottom thereof slides in contact with the bottom of the slide groove;

[0014] A driving cylinder is fixed in the pushing bracket, and an output shaft of the driving cylinder is fixedly connected to the sliding bracket;

[0015] Two mounting brackets, fixed on the top of the two outer sides of the pushing bracket and located above the card slots on both sides;

[0016] Four buckles are rotatably installed in two mounting brackets through a rotating shaft. A clamping block is provided on one side of the bottom of the buckle, and the clamping block can be inserted into the clamping slot. The two buckles in the mounting bracket are symmetrically arranged.

[0017] Preferably, the sliding shoe body further includes

[0018] Four auxiliary rollers are fixed on the four corners of the sliding bracket, and the auxiliary rollers are in rolling contact with the side surfaces of the sliding groove.

[0019] Preferably, the lifting support frame comprises

[0020] Two double-acting hydraulic cylinders are fixed on both sides of the sliding bracket;

[0021] A connecting frame, both ends of which are fixedly connected to the piston rod of the double-acting hydraulic cylinder;

[0022] Two lifting cylinders are fixed on the connecting frame;

[0023] The top cover plate is fixed on the piston rods of the two lifting cylinders and is used to support the furnace shell.

[0024] Preferably, both ends of the connecting frame are provided with connecting boxes, both sides of the connecting boxes are provided with connecting grooves, the double-acting hydraulic cylinder is located in the connecting box, and its piston rod is fixedly connected to the connecting grooves.

[0025] Preferably, a first stainless steel pad is fixed to the bottom of the sliding bracket, and a second stainless steel pad is fixed to the bottom of the pushing bracket.

[0026] Preferably, the sliding track is composed of a plurality of U-shaped segments, connecting holes are provided on both sides of the ends of the U-shaped segments, a first pin hole is provided on the outer side wall of the connecting hole, connecting blocks are embedded in two corresponding connecting holes of adjacent U-shaped segments, and two second pin holes are provided at both ends of the connecting block.

[0027] Preferably, an MGE slide plate is fixed at the bottom of the slide groove of the sliding track.

[0028] Preferably, the pushing bracket is a U-shaped structure, and the two mounting brackets are upper and lower hollow structures.

[0029] The present invention provides a self-locking sliding shoe device, which has the following beneficial effects:

[0030] 1. The present invention realizes self-locking of the hydraulic pushing device through buckles and slots. This buckle-type locking method has high locking strength, can avoid slipping during the movement of the furnace shell, ensure the synchronization of the pushing system, and realize high-precision pushing.

[0031] 2. The piston rods of the two double-acting hydraulic rods can be extended and retracted left and right, thereby driving the connecting frame to move left and right, that is, driving the furnace shell to move left and right, realizing the horizontal correction function, facilitating the centering and alignment of multi-section furnace shells, and greatly reducing the difficulty of adjusting the furnace shell. The top cover plate can increase the support area to ensure the stability of the furnace shell support. The height of the furnace shell can be controlled by the lifting cylinder to facilitate the installation of the furnace shell.

[0032] 3. When the connecting block is embedded in the two corresponding connecting holes, the two second pin holes correspond to the first pin holes on the side walls of the two connecting holes. By inserting the pin shaft into the first pin hole and the second pin hole, the U-shaped sections at both ends of the adjacent sections can be detachably connected to divide the sliding track into sections. The single-section U-shaped section has a small weight and a short length, which is easy to transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 It is a structural schematic diagram of the self-locking sliding shoe device of the present invention;

[0034] Figure 2 It is a structural schematic diagram of the sliding shoe body and the hydraulic pushing device of the present invention;

[0035] Figure 3 An exploded view of the sliding shoe body and the hydraulic pushing device of the present invention;

[0036] Figure 4 It is a schematic diagram of the structure of the buckle of the present invention;

[0037] Figure 5 It is a structural schematic diagram of the sliding track of the present invention;

[0038] Figure 6 It is a layout diagram of the furnace shell shifting of the present invention;

[0039] Figure 7 The working diagram of the furnace shell shifting of the present invention is shown in FIG. Figure 1 ;

[0040] Figure 8 The working diagram of the furnace shell shifting of the present invention is shown in FIG. Figure 1 ;

[0041] Fig. 9 The working diagram of the furnace shell shifting of the present invention is shown in FIG. Figure 3 ;

[0042] Fig.10 The working diagram of the furnace shell shifting of the present invention is shown in FIG. Figure 4;

[0043] Fig.11 The working diagram of the furnace shell shifting of the present invention is shown in FIG. Figure 5 .

[0044] In the figure:

[0045] 1. Sliding track; 101. Sliding slot; 102. Card slot; 11. U-shaped section; 111. Connecting hole; 112. First pin hole; 12. Connecting block; 121. Second pin hole; 13. MGE sliding plate;

[0046] 2. Sliding shoe body; 21. Sliding bracket; 22. Lifting support frame; 221. Double-acting hydraulic cylinder; 222. Connecting frame; 223. Lifting cylinder; 224. Top cover plate; 225. Connecting box; 226. Connecting groove; 23. Auxiliary roller; 24. First stainless steel pad;

[0047] 3. Hydraulic pushing device; 31. Pushing bracket; 32. Driving cylinder; 33. Mounting bracket; 34. Buckle; 341. Snap-on block; 35. Second stainless steel pad;

[0048] 100. Furnace shell. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solutions and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the present invention.

[0050] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than 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.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0053] Example

[0054] Reference Figure 1-4 , a self-locking sliding shoe device, comprising a sliding track 1, a sliding shoe body 2 and a hydraulic pushing device 3;

[0055] The sliding track 1 is a groove track, with a sliding groove 101 in the middle of the top surface, and a plurality of slots 102 on both sides of the top surface, and the plurality of slots 102 are arranged at equal intervals along the length direction of the sliding track 1;

[0056] The sliding shoe body 2 is slidably disposed in the sliding groove 101. The sliding shoe body 2 includes

[0057] The bottom of the sliding bracket 21 is in sliding contact with the bottom of the sliding groove 101;

[0058] A lifting support frame 22, fixed on the top of the sliding support 21, for supporting the furnace shell 100;

[0059] The hydraulic pushing device 3 is slidably disposed in the slide groove 101. The hydraulic pushing device 3 includes

[0060] Push the bracket 31 so that the bottom thereof slides in contact with the bottom of the slide groove 101;

[0061] A driving cylinder 32 is fixed in the pushing bracket 31, and an output shaft of the driving cylinder 32 is fixedly connected to the sliding bracket 21;

[0062] Two mounting brackets 33 are fixed on the top of the two outer sides of the pushing bracket 31 and are located above the card slots 102 on both sides;

[0063] Four clips 34 are rotatably installed in two mounting brackets 33 via a rotating shaft. A snap-in block 341 is provided on one side of the bottom of the clip 34. The snap-in block 341 is conical and can be inserted into the slot 102. The two clips 34 in the mounting bracket 33 are symmetrically arranged.

[0064] Reference Figure 6 During the arrangement and installation, three sliding rails 1 are laid from the center and both sides of the blast furnace. The length of the sliding rail 1 extends from the pre-assembly area of ​​the blast furnace to the foundation of the blast furnace. Two sets of sliding shoe bodies 2 and hydraulic pushing devices 3 are installed on each sliding rail 1, totaling six sets. The furnace shell 100 is fixedly supported by six jacking support frames 22.

[0065] Reference Figure 3 , Figure 4 In each set of the sliding shoe body 2 and the hydraulic pushing device 3 combination, four buckles 34 are included. The buckles 34 with the same direction of the clamping blocks 341 are in one group, and there are two groups in total, which are used for self-locking when moving forward and backward, respectively. Specifically, the buckle 34 (black) with the clamping block 341 away from the sliding bracket 21 is used for self-locking when moving forward. After the clamping block 341 of the buckle 34 is inserted into the slot 102, the self-locking of the hydraulic pushing device 3 is realized. At this time, the hydraulic pushing device 3 cannot move backward under the clamping action of the clamping block 341, and can only move forward; the buckle 34 (white) with the clamping block 341 close to the sliding bracket 21 is used for self-locking when moving backward. After the clamping block 341 of the buckle 34 is inserted into the slot 102, the self-locking of the hydraulic pushing device 3 is also realized. At this time, the hydraulic pushing device 3 cannot move forward under the clamping action of the clamping block 341, and can only move backward.

[0066] Reference Figure 7-11 When the furnace shell 100 is pushed, the corresponding buckle 34 (black) is inserted into the slot 102 to self-lock the hydraulic pushing device 3, and the output shaft of the driving cylinder 32 extends forward to push the sliding shoe body 2 to move forward, that is, to push the furnace shell 100 to move forward. After the output shaft of the driving cylinder 32 reaches the stroke, it begins to retract, driving the hydraulic pushing device 3 to move forward. After the clamping block 341 of the buckle 34 contacts the front end edge of the slot 102, it automatically rotates upward under the action of the front end edge of the slot 102, and the clamping block 341 is disengaged from the slot 102. The hydraulic pushing device 3 continues to move forward until the buckle 34 moves to the next slot 102. Under the action of gravity, the buckle 34 automatically rotates downward, and the clamping block 341 is inserted into the slot 102, and the hydraulic pushing device 3 is self-locked again. At this point, a pushing cycle is completed. At this time, the output shaft of the driving cylinder 32 can extend forward again to push the furnace shell 100 forward. The pushing of the furnace shell 100 is completed by the reciprocating cycle in the above-mentioned stepping method.

[0067] Of course, in a few cases, if the furnace shell 100 is pushed beyond the installation position, the corresponding buckle 34 (white) can be inserted into the slot 102 to self-lock the hydraulic pushing device 3, and the output shaft of the driving cylinder 32 is retracted backward, driving the sliding shoe body 2 to move backward, that is, driving the furnace shell 100 to move backward to adjust its position.

[0068] The present invention realizes self-locking of the hydraulic pushing device 3 through the buckle 34 and the slot 102. This buckle 34 type locking method has high locking strength, can avoid slipping during the pushing process of the furnace shell 100, ensure the synchronization of the pushing system, and realize high-precision pushing.

[0069] In a specific embodiment, referring to Figure 2-3 The sliding shoe body 2 also includes

[0070] Four auxiliary rollers 23 are fixed at the four corners of the sliding bracket 21 . The auxiliary rollers 23 are in rolling contact with the side surfaces of the sliding groove 101 , so as to avoid friction between the sliding bracket 21 and the sliding track 1 during the pushing process.

[0071] In a specific embodiment, the lifting support frame 22 includes

[0072] Two double-acting hydraulic cylinders 221 are fixed on both sides of the sliding bracket 21;

[0073] A connecting frame 222, both ends of which are fixedly connected to the piston rod of the double-acting hydraulic cylinder 221;

[0074] Two lifting cylinders 223 are fixed on the connecting frame 222;

[0075] The top cover plate 224 is fixed on the piston rods of the two lifting cylinders 223 and is used to support the furnace shell 100 .

[0076] The piston rods of the two double-acting hydraulic rods can be extended and retracted left and right, thereby driving the connecting frame 222 to move left and right, that is, driving the furnace shell 100 to move left and right, realizing the horizontal correction function, facilitating the centering and alignment of the multi-section furnace shell 100, and greatly reducing the difficulty of adjusting the furnace shell 100. The top cover plate 224 can increase the supporting area to ensure the stability of the furnace shell 100 support. The height of the furnace shell 100 can be controlled by the lifting cylinder 223, which facilitates the installation of the furnace shell 100.

[0077] In a specific embodiment, the two ends of the connecting frame 222 have connecting boxes 225, and connecting grooves 226 are opened on both sides of the connecting box 225. The double-acting hydraulic cylinder 221 is located in the connecting box 225, and its piston rod is fixedly connected to the connecting groove 226; the connecting frame 222 needs to bear the gravity of the furnace shell 100, and the use of the double-acting hydraulic cylinder 221 can ensure the strength and stability of the support of the connecting frame 222.

[0078] In a specific embodiment, a first stainless steel pad 24 is fixed to the bottom of the sliding bracket 21, and a second stainless steel pad 35 is fixed to the bottom of the pushing bracket 31 to improve wear resistance.

[0079] In a specific embodiment, referring to Figure 5 The sliding track 1 is composed of a plurality of U-shaped sections 11, both sides of the ends of the U-shaped sections 11 are provided with connecting holes 111, the outer side walls of the connecting holes 111 are provided with first pin holes 112, and connecting blocks 12 are embedded in two corresponding connecting holes 111 of adjacent U-shaped sections 11, and two second pin holes 121 are provided at both ends of the connecting block 12.

[0080] When the connecting block 12 is embedded in the corresponding two connecting holes 111, the two second pin holes 121 correspond to the first pin holes 112 on the side walls of the two connecting holes 111. By inserting the pin shaft into the first pin hole 112 and the second pin hole 121, the U-shaped sections 11 at the adjacent ends can be detachably connected to divide the sliding track 1 into sections. The single-section U-shaped section 11 has a small weight and a short length, which is convenient for transportation.

[0081] In a specific embodiment, an MGE slide plate 13 is fixed at the bottom of the slide groove 101 of the sliding track 1. The MGE slide plate 13 has low friction and can reduce the resistance to the movement of the furnace shell 100.

[0082] In a specific embodiment, the pushing bracket 31 is a U-shaped structure, and the two mounting brackets 33 are upper and lower hollow structures.

[0083] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A self-locking sliding shoe device, characterized in that: It includes a sliding track, a sliding shoe body and a hydraulic pushing device; The sliding track is a groove-type track, with a sliding groove in the middle of the top surface and a plurality of clamping grooves on both sides of the top surface; The sliding shoe body is slidably arranged in the sliding groove, and the sliding shoe body includes A sliding bracket, the bottom of which is in sliding contact with the bottom of the slide groove; A lifting support frame, fixed on the top of the sliding support, used to support the furnace shell; The hydraulic pushing device is slidably arranged in the slide groove, and the hydraulic pushing device includes Push the bracket so that the bottom thereof slides in contact with the bottom of the slide groove; A driving cylinder is fixed in the pushing bracket, and an output shaft of the driving cylinder is fixedly connected to the sliding bracket; Two mounting brackets are fixed on the top of the two outer side surfaces of the pushing bracket and are located above the card slots on both sides; four clips are rotatably installed in the two mounting brackets through a rotating shaft, and a card block is provided on one side of the bottom of the clip, and the card block can be inserted into the card slot. The two clips in the mounting bracket are arranged symmetrically.

2. A self-locking sliding shoe device according to claim 1, characterized in that: The sliding shoe body also includes four auxiliary rollers fixed at four corners of the sliding bracket, and the auxiliary rollers are in rolling contact with the side surfaces of the sliding groove.

3. The self-locking sliding shoe device according to claim 1, characterized in that: The jacking support frame includes two double-acting hydraulic cylinders fixed on both sides of the sliding support; A connecting frame, both ends of which are fixedly connected to the piston rod of the double-acting hydraulic cylinder; Two lifting cylinders are fixed on the connecting frame; The top cover plate is fixed on the piston rods of the two lifting cylinders and is used to support the furnace shell.

4. A self-locking sliding shoe device according to claim 3, characterized in that: The two ends of the connecting frame are provided with connecting boxes, and connecting grooves are provided on both sides of the connecting box. The double-acting hydraulic cylinder is located in the connecting box, and its piston rod is fixedly connected to the connecting groove.

5. The self-locking sliding shoe device according to claim 1, characterized in that: A first stainless steel pad is fixed to the bottom of the sliding bracket, and a second stainless steel pad is fixed to the bottom of the pushing bracket.

6. The self-locking sliding shoe device according to claim 1, characterized in that: The sliding track is composed of a plurality of U-shaped segments, both sides of the ends of the U-shaped segments are provided with connecting holes, the outer side walls of the connecting holes are provided with first pin holes, connecting blocks are embedded in the two corresponding connecting holes of adjacent U-shaped segments, and two second pin holes are provided at both ends of the connecting blocks.

7. The self-locking sliding shoe device according to claim 1, characterized in that: An MGE slide plate is fixed at the bottom of the slide groove of the sliding track.

8. The self-locking sliding shoe device according to claim 1, characterized in that: The pushing bracket is a U-shaped structure, and the two mounting brackets are upper and lower hollow structures.

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