Traction die forging chain for submerged chain conveyor

Abstract

The invention relates to the technical field of slag conveyor related equipment, in particular to a traction die forging chain for a slag conveyor, the traction die forging chain for the slag conveyor comprises a plurality of inner chain links, outer chain links and pin shafts, and the outer chain links and the inner chain links are alternately arranged along a conveying loop; first mounting holes are formed in the two ends of the inner chain links; second mounting holes are formed in the two ends of the outer chain links, and the pin shafts penetrate through the first mounting holes and the second mounting holes at the same time. Liquid storage areas are formed between the pin shaft and the second mounting hole in the suspended top of the outer link, between the pin shaft and the first mounting hole and between the pin shaft and the second mounting hole in the suspended bottom of the outer link; each pin shaft is sleeved with four sets of elastic sealing pieces, the four sets of elastic sealing pieces are arranged at intervals in the axial direction of the pin shaft and are sealed at the two ends of the liquid storage area respectively to form three sealing cavities, and each sealing cavity is filled with liquid, so that the inner chain links, the outer chain links and the pin shafts are in flexible rotating connection. Therefore, abrasion among the inner chain links, the outer chain links and the pin shafts is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of slag scooping machine related equipment, in particular to a traction die forging chain for a slag scooping machine. Background Art

[0002] A slag scoop machine is a device used to scoop and transport slag from boilers or other high-temperature furnaces. It is widely used in thermal power plants, metal smelting and other fields. Its main function is to scoop slag from the high-temperature molten pool and transfer the slag safely and efficiently to storage or processing facilities through cooling, granulation and transportation processes.

[0003] There are many types of slag scoops. According to different working principles, they can be divided into scraper slag scoops, dry slag scoops, spiral slag scoops, chain bucket slag scoops, etc. Among them, the scraper slag scoop is the most common type. When working, it transports the bottom slag to the next level storage or conveying equipment through the scraper chain.

[0004] There are two common types of scraper chains. One is the round link chain, which is made by bending bars and then welding them into shape, and is connected in an interlocking manner. The other is the die-forged chain, which uses a precision die-forging process and consists of forked scraper links and transition inner links, and each link is connected by an anti-rotation pin.

[0005] In the related technology, for example, Chinese patent CN209655321U discloses a scraper slag scoop die forging chain, which includes an inner link plate, an outer link plate, a shoulder pin that passes through a cylindrical transmission hole of an outer link plate, a semi-cylindrical arc transmission hole of the middle inner link plate, and another cylindrical transmission hole of the outer link plate in sequence to connect the inner link plate and the outer link plate in series, a retaining ring installed on the end of the shoulder pin, an elastic locking column of non-metallic material with a radial hole installed in the center hole of the end of the shoulder pin, and a bayonet with a chamfered thick cylinder at both ends and a thin shaft in the middle.

[0006] Although the above-mentioned scraper slag scooping machine die-forged chain has higher strength than the traditional round link chain, it is found in actual use that due to the rigid contact between the shoulder pin and the inner and outer link plates, long-term use will cause serious wear between the shoulder pin and the inner and outer link plates, which will not only reduce the service life of the die-forged chain and require frequent replacement, but also cause gaps between the shoulder pin and the inner and outer link plates, resulting in greater vibration when scooping slag, thereby affecting the transportation of slag. Summary of the invention

[0007] Based on this, it is necessary to provide a traction die forging chain for a slag scoop machine to address the problems of low service life, large vibration and poor stability of the current scraper chain during use.

[0008] The above purpose is achieved through the following technical solutions:

[0009] A traction die forging chain for a slag scooping machine, wherein the traction die forging chain for the slag scooping machine forms a closed conveying loop on the slag scooping machine body; the traction die forging chain for the slag scooping machine comprises:

[0010] A plurality of inner chain links, each of which has a first mounting hole at both ends;

[0011] A plurality of outer chain links, wherein the outer chain links and the inner chain links are alternately arranged along the conveying loop; a second mounting hole is provided at both ends of each of the outer chain links, the outer chain links are of an I-shaped structure, and the second mounting hole penetrates the suspended top and the suspended bottom of the outer chain links on the same side;

[0012] A plurality of pins, wherein the pins penetrate the first mounting hole and the second mounting hole at the same time so that the adjacent outer chain links and the inner chain links form an articulated fit; a liquid storage area is formed between the pin and the second mounting hole on the suspended top of the outer chain link, between the pin and the first mounting hole, and between the pin and the second mounting hole on the suspended bottom of the outer chain link; four groups of elastic seals are sleeved on each of the pins, and the four groups of elastic seals are arranged at intervals along the axial direction of the pin, and are respectively sealed at both ends of the liquid storage area to form three sealed cavities, each of which is filled with liquid; a stop bulge is fixedly provided at the bottom end of each of the pins, and the stop bulge stops at the suspended bottom of the outer chain link, and a stop pin is detachably provided at the top end of each of the pins, and the stop pin stops at the suspended top of the outer chain link.

[0013] Furthermore, the traction die forging chain for the slag scooper further comprises an adjusting portion, and the adjusting portion is configured to be able to adjust the volume of the sealing cavity in inverse proportion to the magnitude of the tension when the inner chain link is pulled.

[0014] Furthermore, the adjusting part is configured as a truncated cone-shaped structure and is fixedly sleeved on the pin shaft, the small end of the adjusting part is configured toward the stop cam, and the conical surface of the adjusting part is guided and matched with the inner peripheral wall of the first mounting hole.

[0015] Furthermore, the traction die forging chain for the slag scooping machine also includes three extrusion rings, which are sleeved on the pin shaft and can move axially synchronously with the pin shaft and are respectively located in the sealing cavity.

[0016] Furthermore, the extrusion ring is configured as a conical structure, with the small end facing the stop pin.

[0017] Furthermore, the first mounting hole and the second mounting hole are both provided with a partial cone structure, and the small end faces the stop pin.

[0018] Furthermore, the liquid includes lubricating hydraulic oil.

[0019] Furthermore, each group of elastic sealing members includes a plurality of elastic sealing members.

[0020] Furthermore, the elastic sealing element includes a disc spring.

[0021] Furthermore, the traction die forging chain for the slag scooping machine adopts a precision die forging process.

[0022] The beneficial effects of the present invention are:

[0023] When installing a traction die forging chain for a slag scooping machine provided by the present invention, firstly, a second mounting hole of an outer chain link and a first mounting hole of an inner chain link are set correspondingly, and then a pin shaft simultaneously passes through the first mounting hole and the second mounting hole, so that the inner chain link and the outer chain link form a hinged fit, and then four groups of elastic seals are respectively installed at both ends of the second mounting hole of the outer chain link to form three sealing chambers, and then a stop pin is installed at the top of the pin shaft, so that the stop pin stops at the suspended top of the outer chain link, and then liquid is filled into the three sealing chambers; after the filling is completed, multiple inner chain links and multiple outer chain links form a closed conveying loop in the order of inner chain link, pin shaft, outer chain link, pin shaft or outer chain link, pin shaft, inner chain link, pin shaft. By setting the inner chain link, the outer chain link and the pin shaft as a flexible rotation connection, on the one hand, the wear between the inner chain link, the outer chain link and the pin shaft can be reduced, which is conducive to extending the service life of the traction die forging chain for a slag scooping machine, and on the other hand, under the action of the elastic seal, the vibration intensity can be reduced, which is conducive to improving the stability of slag transportation.

[0024] Furthermore, by providing an adjustment portion, when in use, the volume of the sealing chamber can be adjusted inversely proportionally according to the magnitude of the tension when the inner chain link is pulled. Therefore, when the tension applied to the inner chain link is large, the volume of the sealing chamber can be adjusted to be smaller and the liquid pressure can be larger through the adjustment portion, thereby making the connection strength between the inner chain link, the outer chain link and the pin shaft larger. On the one hand, it can ensure the smooth operation of the chain, and on the other hand, it can better reduce the vibration of the chain; when the tension applied to the inner chain link is small, the volume of the sealing chamber can be adjusted to be larger and the liquid pressure can be smaller through the adjustment portion, thereby making the connection strength between the inner chain link, the outer chain link and the pin shaft smaller, which is beneficial to reducing wear.

[0025] Furthermore, by providing an extrusion ring, the volume of the sealing cavity can be quickly changed when the pin shaft slides axially, and then the connection strength between the inner chain links, the outer chain links and the pin shaft can be quickly changed by quickly changing the pressure of the liquid, thereby ensuring timeliness. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1A schematic diagram of the three-dimensional structure of a traction die forging chain for a slag scooping machine provided in one embodiment of the present invention when the traction die forging chain is assembled on a slag scooping machine body;

[0027] Figure 2 A schematic diagram of the three-dimensional structure of a traction die forging chain for a slag dredger provided in one embodiment of the present invention;

[0028] Figure 3 A schematic diagram of the three-dimensional structure of a single component of a traction die forging chain for a slag dredger provided in one embodiment of the present invention;

[0029] Figure 4 A schematic diagram of a top view of a single component of a traction die forging chain for a slag dredger provided in one embodiment of the present invention;

[0030] Figure 5 for Figure 4 Middle AA section view;

[0031] Figure 6 A schematic front view of a single component of a traction die forging chain for a slag dredger provided in one embodiment of the present invention;

[0032] Figure 7 for Figure 6 Middle BB section view;

[0033] Figure 8 A schematic diagram of the three-dimensional structure of an inner link of a traction die forging chain for a slag dredger provided in one embodiment of the present invention;

[0034] Fig. 9 A schematic diagram of the three-dimensional structure of an outer link of a traction die forging chain for a slag dredger provided in one embodiment of the present invention;

[0035] Fig.10 A schematic diagram of the three-dimensional structure of a pin shaft of a traction die forging chain for a slag dredger provided in one embodiment of the present invention.

[0036] in:

[0037] 1. inner chain link; 101. first mounting hole; 11. retaining ring;

[0038] 2. outer chain link; 201. second mounting hole;

[0039] 3. Pin shaft; 301. Sealing cavity; 302. Insertion hole; 31. Stop convex; 32. Stop pin; 33. Insert ring;

[0040] 4. Adjustment Department;

[0041] 5. Extrusion ring;

[0042] 6. Disc spring;

[0043] 7. Slag scoop machine body. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0045] The serial numbers assigned to the components herein, such as "first", "second", etc., are only used to distinguish the objects described and do not have any order or technical meaning. The "connection" and "coupling" mentioned herein, unless otherwise specified, include direct and indirect connections (couplings). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0046] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0047] like Figure 1 As shown, a traction die forging chain for a slag scoop machine provided in one embodiment of the present invention is assembled on a slag scoop machine body 7, and a closed conveying loop is formed on the slag scoop machine body 7; wherein the structure for driving the traction die forging chain for the slag scoop machine to move and the structure for scooping the slag are both prior arts and will not be described in detail.

[0048] like Figures 2 to 10As shown, the traction die forging chain for the slag scooping machine provided in the above embodiment is configured to include a plurality of inner links 1, a plurality of outer links 2 and a plurality of pins 3; a first mounting hole 101 is provided at both ends of each inner link 1; the outer links 2 and the inner links 1 are arranged alternately along the conveying loop; a second mounting hole 201 is provided at both ends of each outer link 2, the outer link 2 is an I-shaped structure, and the second mounting hole 201 penetrates the suspended top and suspended bottom of the outer link 2 on the same side; the pin 3 penetrates the first mounting hole 101 and the second mounting hole 201 at the same time, so that the adjacent outer link 2 and the inner link 1 form an articulated fit; the pin 3 and the suspended top of the outer link 2 Liquid storage areas are formed between the second mounting hole 201, between the pin shaft 3 and the first mounting hole 101, and between the pin shaft 3 and the second mounting hole 201 on the suspended bottom of the outer chain link 2; four groups of elastic seals are sleeved on each pin shaft 3, and the four groups of elastic seals are arranged at intervals along the axial direction of the pin shaft 3, and are respectively sealed at the two ends of the liquid storage area to form three sealed cavities 301, and each sealed cavity 301 is filled with liquid; a stopper 31 is fixedly provided at the bottom end of each pin shaft 3, and the stopper 31 stops at the suspended bottom of the outer chain link 2, and a stopper pin 32 is detachably provided at the top end of each pin shaft 3, and the stopper pin 32 stops at the suspended top of the outer chain link 2.

[0049] Specifically in this embodiment, Figure 8 As shown, the inner link 1 is configured as a strip-shaped block structure, and two first mounting holes 101 are arranged at intervals along the extension direction of the inner link 1 and are both arranged close to the end. The first mounting holes 101 are vertically and through-opened on the upper and lower end surfaces of the inner link 1. On the inner link 1, a retaining ring 11 is coaxially and fixedly arranged at the top of each first mounting hole 101; Fig. 9 As shown, the outer chain link 2 is configured as an I-shaped block structure, and the second mounting hole 201 is vertically and through-opened at the top of the outer chain link 2; Figure 5 As shown, one group of elastic seals is located between the stop pin 32 and the top side of the suspended top of the outer link 2, one group of elastic seals is located between the bottom side of the suspended top of the outer link 2 and the top of the stop ring 11, one group of elastic seals is located between the bottom of the first mounting hole 101 on the inner link 1 and the top side of the suspended bottom of the outer link 2, and the last group of elastic seals is located between the bottom side of the suspended bottom of the outer link 2 and the stop protrusion 31.

[0050] like Fig.10 As shown, the stopper 31 is set as a solid bowl-shaped structure, and the pin shaft 3 and the stopper 31 together form a T-shaped rotating body structure; in order to facilitate the installation of the stopper 32, a plug hole 302 is vertically opened on the circumferential side wall of the pin shaft 3 away from the stopper 31; Figure 4 As shown, the stop pin 32 is configured as a horn-shaped structure and is inserted into the insertion hole 302 during installation.

[0051] During installation, if Figure 5 As shown, first, the right end of the inner link 1 is inserted between the suspended top and the suspended bottom on the left side of the outer link 2, and the second mounting hole 201 on the left side of the outer link 2 and the first mounting hole 101 on the right end of the inner link 1 are coaxially arranged, and then the pin 3 is inserted from bottom to top in sequence through the second mounting hole 201 on the suspended bottom on the left side of the outer link 2, the first mounting hole 101 on the right end of the inner link 1, and the second mounting hole 201 on the suspended top on the left side of the outer link 2 with the stop convex 31 facing downward, so that the inner link 1 and the outer link 2 form a hinge Then, four groups of elastic seals are respectively installed at the two ends of the second installation hole 201 of the outer link 2 to form three sealed cavities 301. At this time, the bottom of the right end of the inner link 1 is in contact with the top side of the suspended bottom of the left side of the outer link 2, and the top of the retaining ring 11 at the right end of the inner link 1 is pushed against the bottom of the second group of elastic seals from top to bottom; then, the retaining pin 32 is inserted into the insertion hole 302 so that the retaining pin 32 is stopped at the suspended top on the left side of the outer link 2, and then the three sealed cavities 301 are filled with liquid.

[0052] After the filling is completed, multiple inner links 1 and multiple outer links 2 form a closed conveying loop in the order of inner link 1, pin 3, outer link 2, pin 3 or outer link 2, pin 3, inner link 1, pin 3. By setting the inner link 1, outer link 2 and pin 3 as a flexible rotation connection, on the one hand, the wear between the inner link 1, outer link 2 and pin 3 can be reduced, which is conducive to extending the service life of the traction die forging chain for the slag scooping machine, and on the other hand, the vibration intensity can be reduced under the action of the elastic seal, which is conducive to improving the stability of slag transportation.

[0053] It can be understood that, in order to facilitate the filling of liquid into the three sealed cavities 301, two first liquid injection holes are opened on the side wall surface of the inner chain link 1, and the first liquid injection holes are respectively connected to the two first mounting holes 101, and four second liquid injection holes are opened on the side wall surface of the outer chain link 2, and the second liquid injection holes are respectively connected to the four second mounting holes 201.

[0054] It can be understood that, in order to facilitate the control of the opening and closing of the first liquid injection hole and the second liquid injection hole, plungers can be sealed at the entrances of the first liquid injection hole and the second liquid injection hole.

[0055] In some embodiments, when the inner link 1 moves to a driving source close to the driving source that forms a closed loop with the traction die forging chain for the slag scoop machine, the tension on the inner link 1 will first increase and then decrease, causing the traction die forging chain for the slag scoop machine on the pulling end side close to the driving source to be in a tensioned state, while the traction die forging chain for the slag scoop machine on the pulling end side away from the driving source to be in a relaxed state, causing the traction die forging chain for the slag scoop machine to generate greater vibrations, affecting the stability of the slag scoop material; to solve this problem, the traction die forging chain for the slag scoop machine is configured to also include an adjusting part 4, and the adjusting part 4 is configured to be able to adjust the volume of the sealing cavity 301 in inverse proportion to the tension when the inner link 1 is pulled.

[0056] When the tension on the inner link 1 is large, the volume of the sealing cavity 301 is adjusted to be smaller and the liquid pressure is larger through the adjustment part 4, so that the connection strength between the inner link 1, the outer link 2 and the pin 3 is larger, which can ensure the smooth operation of the chain on the one hand, and better reduce the vibration of the chain on the other hand; when the tension on the inner link 1 is small, the volume of the sealing cavity 301 is adjusted to be larger and the liquid pressure is smaller through the adjustment part 4, so that the connection strength between the inner link 1, the outer link 2 and the pin 3 is smaller, which is beneficial to reduce wear.

[0057] In a further embodiment, the adjusting portion 4 is configured as a truncated cone structure and is fixedly sleeved on the pin shaft 3, the small end of the adjusting portion 4 is configured toward the stop protrusion 31, and the conical surface of the adjusting portion 4 is guided and matched with the inner peripheral wall of the first mounting hole 101.

[0058] Specifically in this embodiment, Fig.10 As shown, the adjustment portion 4 is disposed near the jack 302; Figure 7 As shown, the adjusting portion 4 is located in the sealing cavity 301 formed by the first mounting hole 101 and the pin 3, and when the inner link 1 is subjected to tension, the inner link 1 will move relative to the outer link 2 toward the side close to the force, and the pin 3 will move upward synchronously under the guidance of the conical surface of the adjusting portion 4, so that the volume of all the sealing cavities 301 is reduced and the liquid pressure is increased; and the greater the tension on the inner link 1, the greater the distance the inner link 1 moves relative to the outer link 2 toward the side close to the force, so that the pin 3 moves upward a greater distance, and then the volume of all the sealing cavities 301 is smaller and the liquid pressure is greater.

[0059] In other embodiments, the traction die forging chain for the slag scooping machine is configured to further include three extrusion rings 5 ​​, which are sleeved on the pin shaft 3 and can synchronously move axially with the pin shaft 3 and are respectively located in the sealing cavity 301 .

[0060] Specifically in this embodiment, in order to facilitate the installation of the extrusion ring 5 into the sealing cavity 301, the extrusion ring 5 is configured as a split structure, and during installation, the extrusion ring 5 is first disassembled and installed into the first installation hole 101 or the second installation hole 201.

[0061] In order to facilitate the extrusion ring 5 to move synchronously with the pin 3, as shown in FIG. Figure 7 and Fig.10 As shown, three insert rings 33 are fixedly sleeved on the pin shaft 3, and the three insert rings 33 are arranged at intervals along the axial direction. The uppermost insert ring 33 is located above the adjusting portion 4 and is arranged close to the adjusting portion 4, and is arranged corresponding to the sealing cavity 301 formed between the second mounting hole 201 at the suspended top of the outer link 2 and the pin shaft 3. The other two insert rings 33 are located below the adjusting portion 4, and are arranged corresponding to the sealing cavities 301 formed between the first mounting hole 101 of the inner link 1 and the pin shaft 3, and between the second mounting hole 201 at the suspended bottom of the outer link 2 and the pin shaft 3 respectively; an annular groove is coaxially opened on the bottom circumferential side wall of the extrusion ring 5, and the insert ring 33 is inserted into the annular groove during installation.

[0062] When the pin shaft 3 slides axially, the setting of the extrusion ring 5 can quickly change the volume of the sealing cavity 301, and then can quickly change the connection strength between the inner chain link 1, the outer chain link 2 and the pin shaft 3 by quickly changing the pressure of the liquid, thereby ensuring timeliness.

[0063] In a further embodiment, the extrusion ring 5 is configured as a conical structure, with the small end facing the stop pin 32 .

[0064] When in use, the conical structure can further quickly change the volume of the sealing cavity 301 compared to the annular structure, and can further quickly change the connection strength between the inner chain link 1, the outer chain link 2 and the pin 3 by further quickly changing the pressure of the liquid, thereby further ensuring timeliness.

[0065] In a further embodiment, both the first mounting hole 101 and the second mounting hole 201 are provided with a partial conical structure, and the small end faces the stop pin 32 .

[0066] Specifically in this embodiment, Figure 7 As shown, the bottoms of the first mounting hole 101 and the second mounting hole 201 are both configured as conical structures, and the conical structures and the conical structures of the extrusion ring 5 are configured correspondingly.

[0067] When in use, the conical structure can further quickly change the volume of the sealing cavity 301 compared to the annular structure, and can further quickly change the connection strength between the inner chain link 1, the outer chain link 2 and the pin 3 by further quickly changing the pressure of the liquid, thereby further ensuring timeliness.

[0068] In other embodiments, the liquid is configured to include lubricating hydraulic oil, so as to lubricate the inner link 1 , the outer link 2 and the pin 3 , and ensure a flexible rotational connection between the inner link 1 , the outer link 2 and the pin 3 .

[0069] In other embodiments, in order to improve the connection strength between the inner link 1, the outer link 2 and the pin 3, each set of elastic seals is configured to include a plurality of elastic seals.

[0070] In other embodiments, the elastic sealing member is configured to include a disc spring 6.

[0071] Specifically in this embodiment, the disc spring 6 is a special spring which is conical in the axial direction and bears the load. After being deformed under the load, it stores a certain potential energy. When relaxation occurs, the disc spring 6 releases part of the potential energy to maintain the pressure between the stop pin 32 and the top side of the suspended top of the outer link 2, the bottom side of the suspended top of the outer link 2 and the top of the stop ring 11, the bottom of the inner link 1 and the top side of the suspended bottom of the outer link 2, the bottom side of the suspended bottom of the outer link 2 and the stop protrusion 31 to meet the sealing requirements.

[0072] More specifically, in order to facilitate the installation of the disc spring 6 on the chain, the disc spring 6 can be configured as a split structure.

[0073] More specifically, the disc spring 6 with a split structure can adopt the same structure as a sealing disc spring 6 that can be quickly installed and replaced as disclosed in Patent No. CN215334104U.

[0074] More specifically, in order to improve the sealing between the disc spring 6 and the liquid storage area, an annular groove can be coaxially opened at the bottom of the first mounting hole 101 and the second mounting hole 201, and the disc spring 6 is partially inserted into the annular groove during installation.

[0075] In other embodiments, the traction die forging chain for the slag scooping machine adopts a precision die forging process.

[0076] Specifically in this embodiment, the material fiber density of the traction die forging chain for the slag scoop machine manufactured by the precision die forging process is uniform and the microstructure is optimized. The inherent defects in the material will be fully improved and eliminated during forging, and the complete metal streamlines are preserved, with excellent comprehensive performance.

[0077] In combination with the above embodiments, the use principle and working process of the embodiments of the present invention are as follows:

[0078] First, the three extrusion rings 5 ​​are disassembled and inserted into the first mounting hole 101 and the second mounting hole 201 respectively.

[0079] like Figure 5As shown, the right end of the inner link 1 is then inserted between the suspended top and the suspended bottom on the left side of the outer link 2, and the second mounting hole 201 on the left side of the outer link 2 and the first mounting hole 101 on the right end of the inner link 1 are coaxially arranged, and then the pin 3 is passed through the second mounting hole 201 on the suspended bottom on the left side of the outer link 2, the first mounting hole 101 on the right end of the inner link 1, and the second mounting hole 201 on the suspended top on the left side of the outer link 2 from bottom to top with the blocking protrusion 31 facing downward, so that the inner link 1 and the outer link 2 form a hinged fit.

[0080] Then, a group of disc springs 6 are sleeved on the pin shaft 3 and located between the insertion hole 302 and the top side of the suspended top of the outer link 2; then, the three groups of disc springs 6 are disassembled and inserted respectively between the bottom side of the suspended top of the outer link 2 and the top of the retaining ring 11, between the bottom of the first mounting hole 101 on the inner link 1 and the top side of the suspended bottom of the outer link 2, and between the bottom side of the suspended bottom of the outer link 2 and the retaining protrusion 31; then, the retaining pin 32 is inserted into the insertion hole 302 so that the retaining pin 32 stops at the suspended top on the left side of the outer link 2; after the retaining pin 32 is inserted into the insertion hole 302, all the disc springs 6 are in a compressed state.

[0081] Then pull out the plunger, and fill the three sealed cavities 301 with lubricating hydraulic oil through the first injection hole and the second injection hole respectively. During the filling process, the split structure belonging to the same extrusion ring 5 is gradually closed under the push of the lubricating hydraulic oil; after the filling is completed, the multiple inner chain links 1 and the multiple outer chain links 2 form a closed conveying loop in the order of inner chain link 1, pin 3, outer chain link 2, pin 3 or outer chain link 2, pin 3, inner chain link 1, pin 3.

[0082] Then the slag scooping machine is installed on the slag scooping machine body 7 by the traction die forging chain, and the next step of assembly work can be carried out.

[0083] The technical features of the above embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0084] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A traction die forging chain for a slag dredger, characterized in that: The traction die forging chain for the slag scooping machine forms a closed conveying loop on the slag scooping machine body; the traction die forging chain for the slag scooping machine comprises: A plurality of inner chain links, each of which has a first mounting hole at both ends; A plurality of outer chain links, wherein the outer chain links and the inner chain links are alternately arranged along the conveying loop; a second mounting hole is provided at both ends of each of the outer chain links, the outer chain links are of an I-shaped structure, and the second mounting hole penetrates the suspended top and the suspended bottom of the outer chain links on the same side; A plurality of pins, wherein the pins penetrate the first mounting hole and the second mounting hole at the same time so that the adjacent outer chain links and the inner chain links form an articulated fit; a liquid storage area is formed between the pin and the second mounting hole on the suspended top of the outer chain link, between the pin and the first mounting hole, and between the pin and the second mounting hole on the suspended bottom of the outer chain link; four groups of elastic seals are sleeved on each of the pins, and the four groups of elastic seals are arranged at intervals along the axial direction of the pin, and are respectively sealed at both ends of the liquid storage area to form three sealed cavities, each of which is filled with liquid; a stop bulge is fixedly provided at the bottom end of each of the pins, and the stop bulge stops at the suspended bottom of the outer chain link, and a stop pin is detachably provided at the top end of each of the pins, and the stop pin stops at the suspended top of the outer chain link.

2. The traction die forging chain for the slag scooping machine according to claim 1, characterized in that: The traction die forging chain for the slag scooping machine further comprises an adjusting portion, and the adjusting portion is configured to be able to adjust the volume of the sealing cavity in inverse proportion to the tension when the inner chain link is pulled.

3. The traction die forging chain for the slag scooping machine according to claim 2, characterized in that: The adjusting part is configured as a truncated cone structure and is fixedly sleeved on the pin shaft. The small end of the adjusting part is configured toward the stop bulge. The conical surface of the adjusting part is guided and matched with the inner peripheral wall of the first mounting hole.

4. The traction die forging chain for the slag scooping machine according to claim 2, characterized in that: The traction die forging chain for the slag scooping machine also includes three extrusion rings, which are sleeved on the pin shaft and can move axially synchronously with the pin shaft and are respectively located in the sealing cavity.

5. The traction die forging chain for the slag scooping machine according to claim 4, characterized in that: The extrusion ring is configured as a conical structure, with the small end facing the stop pin.

6. The traction die forging chain for the slag scooping machine according to claim 5, characterized in that: The first mounting hole and the second mounting hole are both provided with a partial cone structure, and the small end faces the stop pin.

7. The traction die forging chain for a slag dredger according to claim 1, characterized in that: The liquid includes lubricating hydraulic oil.

8. The traction die forging chain for a slag dredger according to claim 1, characterized in that: Each group of elastic seals includes a plurality of elastic seals.

9. The traction die forging chain for a slag dredger according to claim 1, characterized in that: The elastic seal includes a disc spring.

10. The traction die forging chain for a slag dredger according to claim 1, characterized in that: The traction die forging chain for the slag scooping machine adopts a precision die forging process.

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