Crawling loader

Abstract

The invention discloses a slagging-off machine which comprises a first mounting frame, a composite lifting mechanism, a telescopic arm, a slagging-off head and a vehicle body, the first mounting frame is fixedly connected to the vehicle body, the composite lifting mechanism is arranged on the first mounting frame, the telescopic arm is arranged on the composite lifting mechanism, and the extending end of the telescopic arm is fixedly connected with the slagging-off head; the telescopic arm comprises a fixed arm, a first telescopic arm is arranged in an inner cavity of the fixed arm in a sliding mode, a second telescopic arm is arranged in an inner cavity of the first telescopic arm in a sliding mode, and a driving mechanism is arranged on the fixed arm; through the structural arrangement of the telescopic arm, the telescopic arm is of a hollow structure, the hollow arm body is stressed through the middle channel steel, the vertical pulleys and the horizontal pulleys of the first telescopic arm and the second telescopic arm can be matched with the channel steel in a concentrated mode, on the channel steel, the pulley installation structure is simple, the occupied space is small, and the practicability is high. The arrangement mode can provide convenience for maintenance and installation, and the hollow-out arm body enables the condition of the chain to be found in time when the condition occurs.

Description

Technical Field

[0001] The invention belongs to the technical field of smelting auxiliary equipment, and in particular relates to a slag scraper. Background Art

[0002] Metal smelting usually utilizes a casting furnace to melt metal to form a liquid state, and the slag in the molten metal is floated above the liquid surface of the molten metal by stirring, and a granular slag remover is thrown into the molten metal at the same time. The slag remover can condense into a skin-like state on the surface of the molten metal, and the skin-like slag remover can adhere to the impurities on the surface of the molten metal. Then, the condensed slag remover is picked out manually using a steel chisel and a long steel bar, leaving a pure molten metal. During the slag removal process, on the one hand, the workers feel very hot due to the heat radiation of the liquid metal, and on the other hand, the molten metal will get wet after rain or snow, and it will splash when the metal is smelted, which is very dangerous. Therefore, a slag remover is often used for the slag removal work of the hot furnace. The slag remover is generally provided with a telescopic arm device, which at least includes a basic arm, a telescopic arm that is arranged in the basic arm and can be extended or retracted into the basic arm, and a driving mechanism for driving the telescopic arm to extend and retract. For example, a cylinder, a chain and a sprocket can be used as the driving mechanism.

[0003] For example, the Chinese utility model patent with application number: CN202322605384.7 discloses a slag scraper vehicle, including: a vehicle with a cab; an arm vertical lifting bracket installed on the chassis of the vehicle; an arm vertical lifting frame installed on the arm vertical lifting bracket and controllably lifted and lowered vertically along the arm vertical lifting frame; a telescopic arm assembly installed on the arm vertical lifting frame, the telescopic arm assembly including a multi-section telescopic arm, and a material rake installed at the extended end of the telescopic arm. The above-mentioned slag scraper vehicle can control the extension and extension of the telescopic arm assembly as well as the raising and lowering, and then control the forward and backward movement and lifting and lowering of the material rake, and can realize isolated slag scraping work, that is, ensure the safety of slag scraping, and can improve the working environment of workers in slag scraping.

[0004] However, the telescopic arm device of the existing slag truck basically adopts a closed sleeve structure, such as Fig.16 As shown, the right side is a cross-sectional view of the telescopic arm of a traditional slag scraper truck. The telescopic arm of a traditional slag scraper truck is a plurality of sleeved square tubes that slide with a slider. Although the structure is simple, during the actual installation and maintenance process, the closed telescopic arm structure makes it impossible for the operator to promptly inspect and maintain the driving mechanism inside the telescopic arm, and it is impossible to promptly discover damage to the driving mechanism. Damage to the driving mechanism can easily damage the arm body of the telescopic arm. In severe cases, the entire arm body needs to be replaced, which poses a great safety hazard. In addition, the internal structure of the closed arm body is a basic rectangle, and it is difficult to add other reinforcement structures. The bending coefficient is low. When the cross-sectional area of ​​the telescopic arm is the same, the bending strength is limited, which limits the extension length of the telescopic arm body and makes it impossible to perform slag removal operations on some deep casting furnaces, so the applicability is low.

[0005] Therefore, in order to solve the above problems, the present application provides a scraper. Summary of the invention

[0006] The present invention provides a scraper, aiming to solve the problems existing in the above-mentioned background technology.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions: A slag scraper, comprising: a first mounting frame, a compound lifting mechanism, a telescopic arm, a slag scraper head and a vehicle body, wherein the first mounting frame is fixedly connected to the vehicle body, the first mounting frame is provided with a compound lifting mechanism, the compound lifting mechanism is provided with a telescopic arm, and the extended end of the telescopic arm is fixedly connected to the slag scraper head; the telescopic arm comprises: a fixed arm, a first telescopic arm is slidably provided in the inner cavity of the fixed arm, a second telescopic arm is slidably provided in the inner cavity of the first telescopic arm, and a driving mechanism is provided on the fixed arm; one end of the telescopic arm close to the extension direction is defined as the front end, and the other end is defined as the rear end; The fixed arm comprises: two bent plates arranged symmetrically on the left and right, the upper parts of the two bent plates are fixedly connected to first channel steels arranged vertically, a plurality of upper rib plates are arranged at intervals between the upper side walls of the two first channel steels, a plurality of transverse connecting plates are arranged at intervals in parallel between the lower side walls of the two bent plates, a longitudinal connecting plate is fixedly connected between adjacent transverse connecting plates, a rear panel is fixedly connected to the rear ends of the bent plates and the first channel steels, and a front panel is fixedly connected to the front ends; The first telescopic arm comprises: two U-shaped plates symmetrically arranged in an upper and lower direction, the two U-shaped plates are fixedly connected by two second channel steels symmetrically arranged in a left-right direction, a third mounting frame is fixedly connected to the rear end of the U-shaped plate and the second channel steel, and a front seat is fixedly connected to the front end, and the left and right side walls of the third mounting frame are respectively rotatably connected to a first vertical pulley and a first horizontal pulley for cooperating with the first channel steel; The second telescopic arm includes: a cylinder, the rear end of the cylinder is fixedly connected to a fourth mounting frame, the front end of the cylinder is fixedly connected to a slag scraper head, and the left and right side walls of the fourth mounting frame are respectively rotatably connected to a second vertical pulley and a second horizontal pulley for cooperating with the second channel steel.

[0008] Furthermore, a plurality of lower rib plates are arranged between the bending plate and the corresponding first channel steel, and the lower rib plates are distributed in parallel and at intervals along the length direction of the bending plate and are perpendicular to the lower side wall of the first channel steel; a plurality of reinforcing rib plates are arranged between the two U-shaped plates and the second channel steel, and the reinforcing rib plates are distributed in parallel and at intervals along the length direction of the U-shaped plates and are perpendicular to the upper side wall or the lower side wall of the second channel steel.

[0009] Furthermore, a first auxiliary pulley block is provided on the front panel, and the first auxiliary pulley block is used to cooperate with the outer side wall of the first telescopic arm; A pulley seat is fixedly connected to the front seat of the first telescopic arm, and a second auxiliary pulley block is arranged on the pulley seat. The second auxiliary pulley block is used to cooperate with the outer side wall of the second telescopic arm.

[0010] Furthermore, the driving mechanism includes a driving chain, a retracting chain and an extending chain, the upper rear end of the fixed arm is rotatably connected to a driving sprocket, and the upper front end is rotatably connected to a passive sprocket, the driving sprocket is driven by a hydraulic motor, one end of the driving chain is fixedly connected to the upper rear end of the first telescopic arm, and the other end is fixedly connected to the upper rear end of the first telescopic arm after passing through the driving sprocket and the passive sprocket in sequence; The lower side of the third mounting frame at the rear end of the first telescopic arm is rotatably connected to a retraction sprocket, one end of the retraction chain is fixedly connected to the fourth mounting frame on the second telescopic arm, and the other end passes around the retraction sprocket and is fixedly connected to the lower side of the front panel of the fixed arm; An extension sprocket is rotatably connected to the vertical side wall of the front end inner cavity of the first telescopic arm. After one end of the extension chain is fixedly connected to the fourth mounting frame of the second telescopic arm, the other end passes around the extension sprocket and is fixedly connected to the rear panel of the fixed arm.

[0011] Furthermore, two left-right symmetrically arranged guide groove fixing plates are fixedly connected between adjacent upper rib plates, and the upper side walls of the two guide groove fixing plates are respectively fixedly connected with a chain guide groove, and the two chain guide grooves form an accommodating cavity for accommodating the driving chain.

[0012] Furthermore, the outer side wall of the first telescopic arm is provided with a plurality of guide rail plates, and the guide rail plates are used to cooperate with the first auxiliary pulley set. The outer side wall of the second telescopic arm is provided with a plurality of slide plates, and the slide plates are used to cooperate with the second auxiliary pulley set.

[0013] Furthermore, a buffer block is fixedly connected to the rear end of the third mounting bracket on the first telescopic arm, and the buffer block cooperates with the rear panel on the fixed arm. A stop block is fixedly connected to the front end of the third mounting bracket, and a limit block cooperating with the stop block is provided at the front end of the inner cavity of the fixed arm.

[0014] Furthermore, the first mounting frame includes: a horizontally arranged base plate, parallel and symmetrical side plates are respectively arranged on both sides of the base plate, the side plates are perpendicular to the base plate, a first rotating shaft is rotatably connected between the upper parts of the two side plates, and two rear cylinder ear seats are fixedly connected to the rear part of the upper side wall of the base plate.

[0015] Further, the composite lifting mechanism comprises: a rotating plate rotatably connected to the first rotating shaft, the upper ends of the rotating plate are respectively rotatably connected to the lower ends of a mounting seat, the lower side surfaces of the upper ends of the rotating plate are rotatably connected to one ends of two front oil cylinders, and the other ends of the front oil cylinders are rotatably connected to the front end of the bottom plate; Two rotating rods are also rotatably connected to the first rotating shaft, and the rotating rods are distributed on both sides of the rotating plate. The upper ends of the two rotating rods are respectively fixedly connected with connecting pieces, and the rear end of the connecting piece is rotatably connected to one end of the rear oil cylinder, and the other end of the rear oil cylinder is rotatably connected to the corresponding rear oil cylinder ear seat, and the front end of the connecting piece is rotatably connected to one end of the pull rod, and the other end of the pull rod is rotatably connected to the upper end of the corresponding mounting seat; A second mounting bracket is fixedly connected to the front end of the outer side wall of the fixed arm, and the left and right side walls of the second mounting bracket are fixedly connected to the mounting seat respectively.

[0016] Furthermore, the vehicle body includes: an upper frame, a slewing mechanism and a lower frame, the first mounting frame is fixedly connected to the upper frame, the upper frame is fixedly connected to the rotating part of the slewing mechanism, and the rotating seat of the slewing mechanism is fixedly connected to the lower frame; the slewing mechanism is used to drive the upper frame to rotate relative to the lower frame.

[0017] Compared with the prior art, the present invention has the following technical effects: 1. A slag scraper described in the present invention has a structural setting of a telescopic arm, so that the telescopic arm is a hollow structure. The hollow arm body is stressed by the middle channel steel, so that the vertical pulleys and horizontal pulleys of the first telescopic arm and the second telescopic arm can be concentrated and matched with the channel steel. On the channel steel, the pulley installation structure is simple and occupies little space. The hollow arm body allows the chain in the driving mechanism to be conveniently arranged up and down, and this arrangement method can provide an operating space that is convenient for maintenance and installation, and the hollow arm body allows timely detection of chain problems; for a closed arm body, the chain can only be set inside the closed arm body, and the problem can only be discovered when the chain is broken, which is prone to accidents. Replacing the chain may even require disassembling the entire telescopic arm, which is cumbersome and complicated. The structural setting of the telescopic arm can facilitate daily maintenance and repair of the driving mechanism inside the arm body.

[0018] 2. The scraper described in the present invention uses the structural setting of the telescopic arm to enable the telescopic arm to transfer loads through channel steel and rib plates. When the cross-sectional area of ​​the telescopic arm is the same, the structural setting of the telescopic arm of the present application can effectively improve the bending section coefficient of the arm body, improve the carrying capacity of the telescopic arm, and effectively increase the telescopic distance of the telescopic arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an axonometric diagram of a telescopic arm and a composite lifting mechanism of a slag scraper according to the present invention; Figure 2 It is a front view of a telescopic arm and a composite lifting mechanism of a slag scraper according to the present invention; Figure 3 It is an axonometric diagram of a telescopic arm of a slag scraper according to the present invention; Figure 4It is a schematic cross-sectional view of a telescopic arm of a slag scraper according to the present invention; Figure 5 It is a schematic cross-sectional view of a first telescopic arm of a slag scraper according to the present invention; Figure 6 It is an axonometric view of a fixed arm of a slag scraper according to the present invention; Figure 7 It is a schematic diagram of the bottom of a fixed arm of a slag scraper according to the present invention; Figure 8 It is an axonometric view of a first telescopic arm of a slag scraper according to the present invention; Fig. 9 It is a schematic diagram of the inner cavity of the first telescopic arm of a slag scraper according to the present invention; Fig.10 It is an axonometric view of a second telescopic arm of a slag scraper according to the present invention; Fig.11 It is a rear view of a second telescopic arm of a slag scraper according to the present invention; Fig.12 It is an axonometric diagram of a first mounting frame and a composite lifting mechanism of a slag scraper according to the present invention; Fig.13 It is a front view of a first mounting frame and a composite lifting mechanism of a slag scraper according to the present invention; Fig.14 It is a schematic diagram of a body of a slag scraper according to the present invention; Fig.15 It is a front view of a body of a slag scraper according to the present invention; Fig.16 It is a schematic diagram comparing a cross-sectional view of a telescopic arm of a slag scraper according to the present invention with a cross-sectional view of a conventional telescopic arm; Fig.17 It is a front view of a telescopic arm and a composite lifting mechanism of a slag scraper according to another embodiment of the present invention.

[0020] In the figure: 1. First mounting frame; 101. Bottom plate; 102. Side plate; 103. First rotating shaft; 104. Rear oil cylinder ear seat; 121. Ultrasonic receiver; 122. First ultrasonic transmitter; 123. Second ultrasonic transmitter; 2. Compound lifting mechanism; 201. Turn plate; 202. Mounting seat; 203. Front oil cylinder; 204. Turn rod; 205. Connecting piece; 206. Rear oil cylinder; 207. Pull rod; 3. Telescopic arm; 4. Slag removal head; 5. Upper frame; 6. Rotating mechanism; 7. Lower frame; 8. Driving mechanism; 801. Driving chain; 802. Retracting chain; 803. Extending chain; 9. Fixed arm; 901. Bending plate; 902. First channel steel; 903. Upper rib plate; 904. Horizontal connecting plate; 905. Longitudinal connecting plate; 906. Lower rib plate; 907. Guide groove fixing plate; 908. Second mounting frame; 909. Front panel; 910. Rear panel; 911. Driving sprocket; 912. Passive sprocket; 913. Chain guide groove; 914. First auxiliary pulley block; 10. first telescopic arm; 1001. U-shaped plate; 1002. second channel steel; 1003. first vertical pulley; 1004. reinforcing rib plate; 1005. guide plate; 1006. third mounting frame; 1007. first horizontal pulley; 1008. pulley seat; 1009. stopper; 1010. buffer block; 1011. retracting sprocket; 1012. extending sprocket; 1013. second auxiliary pulley block; 11. second telescopic arm; 1101. cylinder; 1102. second vertical pulley; 1103. second horizontal pulley; 1104. fourth mounting frame; 1105. slide plate. DETAILED DESCRIPTION

[0021] In order to make the objectives, 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 combination with specific embodiments of the present application and with reference to the accompanying drawings.

[0022] like Figure 1-11 As shown, a slag scraper comprises: a first mounting frame 1, a compound lifting mechanism 2, a telescopic arm 3, a slag scraper head 4 and a vehicle body, wherein the first mounting frame 1 is fixedly connected to the vehicle body, the first mounting frame 1 is provided with a compound lifting mechanism 2, the compound lifting mechanism 2 is provided with a telescopic arm 3, and the extended end of the telescopic arm 3 is fixedly connected to the slag scraper head 4; the telescopic arm 3 comprises: a fixed arm 9, a first telescopic arm 10 is slidably provided in the inner cavity of the fixed arm 9, a second telescopic arm 11 is slidably provided in the inner cavity of the first telescopic arm 10, a driving mechanism 8 is provided on the fixed arm 9, the driving mechanism 8 is used to drive the first telescopic arm 10 to extend or retract from the inner cavity of the fixed arm 9, and the driving mechanism 8 is also used to drive the second telescopic arm 11 to extend or retract from the inner cavity of the first telescopic arm 10; the end of the telescopic arm 3 close to the extending direction is defined as the front end, and the other end is defined as the rear end; The fixed arm 9 comprises: two symmetrically arranged bending plates 901, the upper parts of the two bending plates 901 are fixedly connected with a vertically arranged first channel steel 902, a plurality of upper rib plates 903 are arranged at intervals between the upper side walls of the two first channel steels 902, a plurality of transverse connecting plates 904 are arranged in parallel and at intervals between the lower side walls of the two bending plates 901, a longitudinal connecting plate 905 is fixedly connected between adjacent transverse connecting plates 904, a rear panel 910 is fixedly connected to the rear ends of the bending plates 901 and the first channel steel 902, and a front panel 909 is fixedly connected to the front ends; the above structure forms the arm body of the fixed arm 9, and the middle part of the front panel 909 is opened to facilitate the extension and retraction of the first telescopic arm 10. The above structure makes the upper and lower sides of the arm body of the fixed arm 9 both hollow structures, so that the operator can easily observe the internal structure of the fixed arm 9, and can timely troubleshoot, avoid construction accidents, and cause equipment or personnel losses; The first telescopic arm 10 comprises: two U-shaped plates 1001 symmetrically arranged in the upper and lower parts, the two U-shaped plates 1001 are fixedly connected by two second channel steels 1002 symmetrically arranged in the left and right parts, the rear ends of the U-shaped plates 1001 and the second channel steels 1002 are fixedly connected with a third mounting frame 1006, and the front ends are fixedly connected with a front seat, and the left and right side walls of the third mounting frame 1006 are respectively rotatably connected with a first vertical pulley 1003 and a first horizontal pulley 1007 for cooperating with the first channel steel 902; the above structure forms the arm body of the first telescopic arm 10, and through the cooperation of the U-shaped plates and the second channel steel 1002, the bending section coefficient of the first telescopic arm 10 can be effectively improved, and its bearing capacity can be improved; during the extension and retraction process of the first telescopic arm 10, the two first vertical pulleys 1003 respectively cooperate with the upper and lower side walls of the corresponding sliding groove of the first channel steel 902, and the two first horizontal pulleys 1007 respectively cooperate with the vertical side walls of the corresponding sliding groove of the first channel steel 902, so as to ensure the sliding stability of the first telescopic arm 10; The second telescopic arm 11 includes: a cylinder 1101, the rear end of the cylinder 1101 is fixedly connected to the fourth mounting frame 1104, the front end of the cylinder 1101 is fixedly connected to the slag scraper head 4, the left and right side walls of the fourth mounting frame 1104 are respectively rotatably connected to the second vertical pulley 1102 and the second horizontal pulley 1103 for cooperating with the second channel steel 1002. Similarly, the cooperation method of the second vertical pulley 1102, the second horizontal pulley 1103 and the second channel steel 1002 is the same as the cooperation method of the first vertical pulley 1003, the first horizontal pulley 1007 and the first channel steel 902.

[0023] like Figure 4-9As shown, a plurality of lower ribs 906 are arranged between the bending plate 901 and the corresponding first channel steel 902, and the lower ribs 906 are arranged in parallel and spaced along the length direction of the bending plate 901, and are perpendicular to the lower side wall of the first channel steel 902; a plurality of reinforcing ribs 1004 are arranged between the two U-shaped plates 1001 and the second channel steel 1002, and the reinforcing ribs 1004 are arranged in parallel and spaced along the length direction of the U-shaped plates 1001, and are perpendicular to the upper side wall or the lower side wall of the second channel steel 1002. The arrangement of the lower ribs 906 and the reinforcing ribs 1004 can further improve the bending section coefficient of the fixed arm 9 and the first telescopic arm 10.

[0024] like Figure 6 and Figure 8 As shown, the front panel 909 is provided with a first auxiliary pulley set 914, and the first auxiliary pulley set 914 is used to cooperate with the outer side wall of the first telescopic arm 10; A pulley seat 1008 is fixedly connected to the front seat of the first telescopic arm 10, and a second auxiliary pulley block 1013 is arranged on the pulley seat 1008. The second auxiliary pulley block 1013 is used to cooperate with the outer wall of the second telescopic arm 11. By setting the first auxiliary pulley block 914 and the second auxiliary pulley block 1013, the friction during the extension and retraction of the first telescopic arm 10 and the second telescopic arm 11 can be reduced, and the resistance of the driving mechanism 8 can be reduced; like Figure 3 , Figure 6 as well as Figure 8-11 As shown, the driving mechanism 8 includes a driving chain 801, a retracting chain 802 and an extending chain 803. The upper rear end of the fixed arm 9 is rotatably connected to a driving sprocket 911, and the upper front end is rotatably connected to a passive sprocket 912. The driving sprocket 911 is driven by a hydraulic motor. One end of the driving chain 801 is fixedly connected to the upper rear end of the first telescopic arm 10, and the other end is fixedly connected to the upper rear end of the first telescopic arm 10 after passing through the driving sprocket 911 and the passive sprocket 912 in sequence. Working principle: the extension and retraction of the first telescopic arm 10 are driven by the driving chain 801. Both ends of the driving chain 801 are fixedly connected to the first telescopic arm 10. When the hydraulic motor drives the driving sprocket 911 to rotate, the driving sprocket 911 drives the driving chain 801 to move, thereby driving the first telescopic arm 10 to extend or retract. The lower side of the third mounting frame 1006 at the rear end of the first telescopic arm 10 is rotatably connected with a retracting sprocket 1011. After one end of the retracting chain 802 is fixedly connected to the fourth mounting frame 1104 on the second telescopic arm 11, the other end passes around the retracting sprocket 1011 and is fixedly connected to the lower side of the front panel 909 of the fixed arm 9. Working principle: when the first telescopic arm 10 retracts, the retraction sprocket 1011 on the third mounting frame 1006 at the rear end of the first telescopic arm 10 pushes the retraction chain 802 in the retraction direction. Since one end of the retraction chain 802 is fixedly connected to the lower end of the front panel 909 of the fixed arm 9 and cannot move, the other end of the retraction chain 802 drives the second telescopic arm 11 to retract. An extension sprocket 1012 is rotatably connected to the vertical side wall of the front inner cavity of the first telescopic arm 10, and one end of the extension chain 803 is fixedly connected to the fourth mounting bracket 1104 of the second telescopic arm 11, and the other end passes around the extension sprocket 1012 and is fixedly connected to the rear panel 910 of the fixed arm 9; Working principle: when the first telescopic arm 10 is extended, the extension sprocket 1012 in the inner cavity of the first telescopic arm 10 pushes the extension chain 803 in the extension direction. Since one end of the extension chain 803 is fixedly connected to the rear panel 910 of the fixed arm 9 and cannot move, the other end of the extension chain 803 drives the second telescopic arm 11 to extend. By setting three chains in the driving mechanism 8, the force on a single chain is reduced during the telescopic action of the telescopic arm 3, which can effectively increase the service life of the chain and avoid damage.

[0025] like Figure 4 , Figure 6 As shown, two left-right symmetrically arranged guide groove fixing plates 907 are fixedly connected between adjacent upper rib plates 903 , and the upper side walls of the two guide groove fixing plates 907 are respectively fixedly connected with a chain guide groove 913 , and the two chain guide grooves 913 form a accommodating cavity for accommodating the driving chain 801 .

[0026] The arrangement of the chain guide groove 913 can protect the drive chain 801 and prevent the drive chain 801 from accidentally breaking and causing harm to the surrounding personnel. It can also prevent foreign debris from being drawn into the drive chain 801 and affecting the normal operation of the drive mechanism 8. In addition, in a specific embodiment, the two chain guide grooves 913 are arranged at intervals to facilitate observation and maintenance by the operator. When a fault is found, the operator can remove the chain guide groove 913 at the fault location separately for maintenance, which is flexible and convenient.

[0027] like Figure 4 , Figure 8 , Fig.10 As shown, the outer wall of the first telescopic arm 10 is provided with a plurality of guide rail plates 1005, and the guide rail plates 1005 are used to cooperate with the first auxiliary pulley group 914, and the outer wall of the second telescopic arm 11 is provided with a plurality of slide plates 1105, and the slide plates 1105 are used to cooperate with the second auxiliary pulley group 1013.

[0028] The arrangement of the guide plate 1005 and the slide plate 1105 can prevent the arm bodies of the first telescopic arm 10 and the second telescopic arm 11 from being worn during the extension and retraction process. When the guide plate 1005 and the slide plate 1105 are worn to a certain extent, they can be replaced separately, and maintenance is convenient and quick.

[0029] like Figure 8-9 As shown, the rear end of the third mounting frame 1006 on the first telescopic arm 10 is fixedly connected with a buffer block 1010, and the buffer block 1010 cooperates with the rear panel 910 on the fixed arm 9. The front end of the third mounting frame 1006 is fixedly connected with a stop block 1009, and the front end of the inner cavity of the fixed arm 9 is provided with a limit block that cooperates with the stop block 1009.

[0030] By setting the buffer block 1010 , the stopper 1009 and the limit block, the stroke of the first telescopic arm 10 can be limited to avoid damage to the structure of the telescopic arm 3 caused by the excessive stroke of the first telescopic arm 10 .

[0031] like Figure 12-13 As shown, the first mounting frame 1 includes: a horizontally arranged bottom plate 101, parallel and symmetrical side plates 102 are respectively arranged on both sides of the bottom plate 101, the side plates 102 are perpendicular to the bottom plate 101, a first rotating shaft 103 is rotatably connected between the upper parts of the two side plates 102, and two rear cylinder ear seats 104 are fixedly connected to the rear part of the upper side wall of the bottom plate 101.

[0032] like Figure 12-13 As shown, the composite lifting mechanism 2 comprises: a rotating plate 201 rotatably connected to the first rotating shaft 103, both sides of the upper end of the rotating plate 201 are rotatably connected to the lower end of a mounting seat 202 respectively, and the lower side surface of the upper end of the rotating plate 201 is rotatably connected to one end of two front oil cylinders 203, and the other end of the front oil cylinder 203 is rotatably connected to the front end of the bottom plate 101; The first rotating shaft 103 is also rotatably connected to two rotating rods 204, which are distributed on both sides of the rotating plate 201. The upper ends of the two rotating rods 204 are respectively fixedly connected to connecting members 205, and the rear end of the connecting member 205 is rotatably connected to one end of a rear oil cylinder 206, and the other end of the rear oil cylinder 206 is rotatably connected to the corresponding rear oil cylinder ear seat 104. The front end of the connecting member 205 is rotatably connected to one end of a pull rod 207, and the other end of the pull rod 207 is rotatably connected to the upper end of the corresponding mounting seat 202; A second mounting bracket 908 is fixedly connected to the front end of the outer side wall of the fixed arm 9 , and the left and right side walls of the second mounting bracket 908 are fixedly connected to the mounting seat 202 , respectively.

[0033] By controlling the extension distance of the front cylinder 203 and the rear cylinder 206, the height and angle of the mounting base 202 can be adjusted, thereby adjusting the height and angle of the fixed arm 9, thereby adjusting the height and angle of the entire telescopic arm 3, so that the slag scraper head 4 at the front end of the telescopic arm 3 can flexibly clean the residue in the hot furnace.

[0034] like Figure 14-15 As shown, the vehicle body includes: an upper frame 5, a slewing mechanism 6 and a lower frame 7, the first mounting frame 1 is fixedly connected to the upper frame 5, the upper frame 5 is fixedly connected to the rotating part of the slewing mechanism 6, the rotating seat of the slewing mechanism 6 is fixedly connected to the lower frame 7; the slewing mechanism 6 is used to drive the upper frame 5 to rotate relative to the lower frame 7.

[0035] The upper frame 5 is provided with a cab, a control system, a hydraulic system, an alarm system, etc., which will not be described in detail here; The lower frame 7 is provided with a driving assembly for driving the lower frame 7 to move. The driving assembly can adopt a conventional wheel mechanism or a crawler mechanism, which will not be described in detail here.

[0036] See also Fig.17 As shown, the scraper also includes a control component. The control component includes a controller (not shown in the figure), an ultrasonic receiver 121 arranged on the first mounting frame 1, a first ultrasonic transmitter 122 and a second ultrasonic transmitter 123 arranged on the bottom axis of the telescopic component 3, and a third ultrasonic transmitter arranged at the bottom of the second telescopic arm 11, and the first ultrasonic transmitter 122 and the ultrasonic receiver 121 are arranged in the vertical direction, and the receiver, the transmitter and the driving mechanism 8 are all connected to the controller signal. In order to allow the signal of the third ultrasonic transmitter to be received by the ultrasonic receiver 121, as a further improvement, a long strip-shaped through hole extending along the axial direction is opened at the bottom of the first telescopic arm 10 and the fixed arm 9, so that the third ultrasonic transmitter can pass through the long strip-shaped through hole and be received by the ultrasonic receiver 121.

[0037] When the slag scraper travels to a predetermined distance of the metal casting furnace, such as generally traveling to a distance range of 0.5 to 1 meter from the slag scraper head 4 to the furnace mouth, and is turned on, the controller is used to obtain the position information of the slag scraper head 4 in real time according to the signals of the receiver and the transmitter. The ultrasonic receiver 121 and the transmitter are prior art and will not be described here. It can be understood that the present invention is not limited to ultrasonic positioning technology, and other technologies such as Bluetooth positioning technology, infrared positioning technology, radio frequency identification (RFID) technology, and radar positioning technology can be used in the present invention.

[0038] The controller is further used to drive the telescopic component 3 to work according to the input overall height H1 of the furnace mouth, the height H2 inside the furnace mouth, the depth D inside the furnace and the position information of the slag removal head 4, thereby driving the slag removal head 4 to automatically work according to the set route in the metal casting furnace to remove waste slag and prevent it from hitting the metal casting furnace.

[0039] The above is only a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A scraper, characterized in that: include: A first mounting frame (1), a composite lifting mechanism (2), a telescopic arm (3), a slag scraper head (4) and a vehicle body, wherein the first mounting frame (1) is fixedly connected to the vehicle body, the first mounting frame (1) is provided with a composite lifting mechanism (2), the composite lifting mechanism (2) is provided with a telescopic arm (3), and the extended end of the telescopic arm (3) is fixedly connected to the slag scraper head (4); the telescopic arm (3) comprises: a fixed arm (9), a first telescopic arm (10) is slidably provided in an inner cavity of the fixed arm (9), a second telescopic arm (11) is slidably provided in an inner cavity of the first telescopic arm (10), and a driving mechanism (8) is provided on the fixed arm (9); one end of the telescopic arm (3) close to the extension direction is defined as the front end, and the other end is defined as the rear end; The fixed arm (9) comprises: two bent plates (901) arranged symmetrically on the left and right, the upper parts of the two bent plates (901) are fixedly connected to first channel steels (902) arranged vertically, a plurality of upper rib plates (903) are arranged at intervals between the upper side walls of the two first channel steels (902), a plurality of transverse connecting plates (904) are arranged in parallel and at intervals between the lower side walls of the two bent plates (901), a longitudinal connecting plate (905) is fixedly connected between adjacent transverse connecting plates (904), a rear panel (910) is fixedly connected to the rear ends of the bent plates (901) and the first channel steels (902), and a front panel (909) is fixedly connected to the front ends; The first telescopic arm (10) comprises: two U-shaped plates (1001) symmetrically arranged in an upper and lower direction, the two U-shaped plates (1001) are fixedly connected via two second channel steels (1002) symmetrically arranged in a left-right direction, the rear ends of the U-shaped plates (1001) and the second channel steels (1002) are fixedly connected to a third mounting frame (1006), the front ends are fixedly connected to a front seat, and the left and right side walls of the third mounting frame (1006) are rotatably connected to a first vertical pulley (1003) and a first horizontal pulley (1007) for cooperating with the first channel steel (902); The second telescopic arm (11) comprises: a cylinder (1101), the rear end of the cylinder (1101) is fixedly connected to a fourth mounting frame (1104), the front end of the cylinder (1101) is fixedly connected to a slag scraper head (4), and the left and right side walls of the fourth mounting frame (1104) are rotatably connected to a second vertical pulley (1102) and a second horizontal pulley (1103) for cooperating with the second channel steel (1002).

2. A scraper according to claim 1, characterized in that: A plurality of lower rib plates (906) are arranged between the bent plate (901) and the corresponding first channel steel (902), the lower rib plates (906) being distributed in parallel and at intervals along the length direction of the bent plate (901) and being perpendicular to the lower side wall of the first channel steel (902); a plurality of reinforcing rib plates (1004) are arranged between the two U-shaped plates (1001) and the second channel steel (1002), the reinforcing rib plates (1004) being distributed in parallel and at intervals along the length direction of the U-shaped plate (1001) and being perpendicular to the upper side wall or the lower side wall of the second channel steel (1002).

3. A scraper according to claim 2, characterized in that: The front panel (909) is provided with a first auxiliary pulley set (914), and the first auxiliary pulley set (914) is used to cooperate with the outer side wall of the first telescopic arm (10); A pulley seat (1008) is fixedly connected to the front seat of the first telescopic arm (10), and a second auxiliary pulley block (1013) is arranged on the pulley seat (1008). The second auxiliary pulley block (1013) is used to cooperate with the outer side wall of the second telescopic arm (11).

4. A scraper according to claim 3, characterized in that: The driving mechanism (8) comprises a driving chain (801), a retracting chain (802) and an extending chain (803); the upper rear end of the fixed arm (9) is rotatably connected to a driving sprocket (911), and the upper front end is rotatably connected to a passive sprocket (912); the driving sprocket (911) is driven by a hydraulic motor; one end of the driving chain (801) is fixedly connected to the upper rear end of the first telescopic arm (10), and the other end is fixedly connected to the upper rear end of the first telescopic arm (10) after passing through the driving sprocket (911) and the passive sprocket (912) in sequence; The lower side of the third mounting frame (1006) at the rear end of the first telescopic arm (10) is rotatably connected to a retraction sprocket (1011); one end of the retraction chain (802) is fixedly connected to the fourth mounting frame (1104) on the second telescopic arm (11), and the other end passes around the retraction sprocket (1011) and is fixedly connected to the lower side of the front panel (909) of the fixed arm (9); An extension sprocket (1012) is rotatably connected to the vertical side wall of the front end inner cavity of the first telescopic arm (10), and one end of the extension chain (803) is fixedly connected to the fourth mounting frame (1104) of the second telescopic arm (11), and the other end passes around the extension sprocket (1012) and is fixedly connected to the rear panel (910) of the fixed arm (9).

5. A scraper according to claim 4, characterized in that: Two left-right symmetrically arranged guide groove fixing plates (907) are fixedly connected between adjacent upper rib plates (903), and the upper side walls of the two guide groove fixing plates (907) are respectively fixedly connected with a chain guide groove (913), and the two chain guide grooves (913) form an accommodating cavity for accommodating the drive chain (801).

6. A scraper according to claim 5, characterized in that: The outer side wall of the first telescopic arm (10) is provided with a plurality of guide rail plates (1005), and the guide rail plates (1005) are used to cooperate with the first auxiliary pulley group (914); the outer side wall of the second telescopic arm (11) is provided with a plurality of slide plates (1105), and the slide plates (1105) are used to cooperate with the second auxiliary pulley group (1013).

7. A scraper according to claim 6, characterized in that: A buffer block (1010) is fixedly connected to the rear end of the third mounting frame (1006) on the first telescopic arm (10), and the buffer block (1010) cooperates with the rear panel (910) on the fixed arm (9); a stop block (1009) is fixedly connected to the front end of the third mounting frame (1006), and a limit block cooperating with the stop block (1009) is provided at the front end of the inner cavity of the fixed arm (9).

8. A scraper according to claim 7, characterized in that: The first mounting frame (1) comprises: a horizontally arranged bottom plate (101), parallel and symmetrical side plates (102) are respectively arranged on both sides of the bottom plate (101), the side plates (102) are perpendicular to the bottom plate (101), a first rotating shaft (103) is rotatably connected between the upper parts of the two side plates (102), and two rear cylinder ear seats (104) are fixedly connected to the rear part of the upper side wall of the bottom plate (101).

9. A scraper according to claim 8, characterized in that: The composite lifting mechanism (2) comprises: a rotating plate (201) rotatably connected to a first rotating shaft (103); both sides of the upper end of the rotating plate (201) are respectively rotatably connected to the lower end of a mounting seat (202); the lower side surface of the upper end of the rotating plate (201) is rotatably connected to one end of two front oil cylinders (203); the other end of the front oil cylinder (203) is rotatably connected to the front end of the bottom plate (101); Two rotating rods (204) are also rotatably connected to the first rotating shaft (103), and the rotating rods (204) are distributed on both sides of the rotating plate (201). The upper ends of the two rotating rods (204) are respectively fixedly connected to connecting members (205). The rear end of the connecting member (205) is rotatably connected to one end of the rear oil cylinder (206), and the other end of the rear oil cylinder (206) is rotatably connected to the corresponding rear oil cylinder ear seat (104). The front end of the connecting member (205) is rotatably connected to one end of a pull rod (207), and the other end of the pull rod (207) is rotatably connected to the upper end of the corresponding mounting seat (202); A second mounting frame (908) is fixedly connected to the front end of the outer side wall of the fixed arm (9), and the left and right side walls of the second mounting frame (908) are respectively fixedly connected to the mounting seat (202).

10. A scraper according to claim 9, characterized in that: The vehicle body comprises: an upper frame (5), a slewing mechanism (6) and a lower frame (7); the first mounting frame (1) is fixedly connected to the upper frame (5); the upper frame (5) is fixedly connected to a rotating part of the slewing mechanism (6); the rotating seat of the slewing mechanism (6) is fixedly connected to the lower frame (7); the slewing mechanism (6) is used to drive the upper frame (5) to rotate relative to the lower frame (7).

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