Welding device and coal pulverizer beater plate

Abstract

A welding device, comprising: a structural assembly (100), comprising a structural member (101) and a beater plate member (102); and clamping assemblies (200), each comprising a clamping member (201) arranged on one side of the structural member (101), an adjustment member (202) arranged on one side of the structural member (101), a locking member (203) arranged on one side of the structural member (101), and an unlocking member (204) arranged on one side of the locking member (203). Each clamping member (201) comprises a mounting block (201a) arranged on one side of the structural member (101) and a clamping block (201c) slidably arranged on one side of the mounting block (201a), the clamping block (201c) being in close contact with the beater plate member (102). The welding device facilitates rapid and synchronous clamping and unlocking, and improves welding stability. The present application also relates to a coal pulverizer beater plate.

Description

Welding device and coal mill beating plate TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mill beating plate, and particularly relates to a welding device and a coal mill beating plate. BACKGROUND

[0002] The main reason for the fracture of the motor squirrel cage bar of the coal mill is heavy load and frequent starting, so the beating plate needs to be arranged to protect the motor squirrel cage bar of the coal mill. The manufacturing process of the coal mill beating plate is mostly casting and welding. Compared with the welding process, the casting needs molding, pouring, cleaning and a bad environment, and the toughness of the cast beating plate is poor and cracks exist inside. The base material of the welded beating plate is a good toughness steel plate, and the impact resistance is strong. Since the beating wheel is a high-speed running equipment, the safety of production safety is increased. In the welding process, it is difficult to quickly and synchronously clamp and fix the base material of the beating plate, so that the beating plate body may slide in the welding process, thereby reducing the welding efficiency and bringing great inconvenience. SUMMARY

[0003] To solve the above technical problems, the present application provides the following technical scheme: a welding device, comprising a structure assembly including a structure member and a beating plate member; a clamping assembly including a clamping member arranged on one side of the structure member, an adjusting member arranged on one side of the structure member, a locking member arranged on one side of the structure member, and an unlocking member arranged on one side of the locking member; the clamping member includes a mounting block arranged on one side of the structure member, and a clamping block slidingly arranged on one side of the mounting block, and the clamping block is in close contact with the beating plate member.

[0004] The welding device has the following advantages: the clamping assembly includes a clamping member arranged on one side of the structure member, an adjusting member arranged on one side of the structure member, a locking member arranged on one side of the structure member, and an unlocking member arranged on one side of the locking member. The clamping assembly is used in cooperation to facilitate quick and synchronous clamping and fixing and unlocking of the beating plate body during welding, improve the stability of the beating plate during welding, and improve the welding efficiency and effect.

[0005] In view of the actual use, the beating plate has poor wear resistance and ventilation.

[0006] To solve the above technical problems, the present application further provides the following technical scheme: a coal mill beating plate, comprising the above welding device, further comprising a wear-resistant assembly including a wear-resistant member arranged on one side of the beating plate body and a ventilation member arranged on one side of the beating plate body; the wear-resistant member includes a hardfacing wear-resistant layer arranged on one side of the beating plate body, and the ventilation member includes a ventilation opening arranged on one side of the beating plate body.

[0007] The coal mill striking plate has the beneficial effects that: the wear-resistant hardfacing layer is arranged, the weight of the striking plate is reduced by adopting the welding process, the wear resistance of the striking plate is improved, the ventilation area of the striking wheel is increased by the ventilation opening, and the output of the striking wheel is increased. BRIEF DESCRIPTION OF DRAWINGS

[0008] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor. Among them:

[0009] Fig. 1 is a front view of the whole according to one or some embodiments of the present application.

[0010] Fig. 2 is a side view of the workbench according to one or some embodiments of the present application.

[0011] Fig. 3 is a structural schematic view of the clamping member according to one or some embodiments of the present application.

[0012] Fig. 4 is a sectional view of the clamping member according to one or some embodiments of the present application.

[0013] Fig. 5 is an enlarged view of the structure at A in Fig. 3.

[0014] Fig. 6 is a structural schematic view of the locking member according to one or some embodiments of the present application.

[0015] Fig. 7 is a front view of the locking member according to one or some embodiments of the present application.

[0016] Fig. 8 is a structural schematic view of the striking plate body according to one or some embodiments of the present application.

[0017] Fig. 9 is a structural schematic view of the hardfacing wear-resistant layer according to one or some embodiments of the present application.

[0018] In the figure: 100, a construction assembly; 101, a construction piece; 101a, a bottom plate; 101b, a support rod; 101c, an adjusting plate; 101d, a workbench; 102, a striking plate piece; 102a, a striking plate body; 200, a clamping assembly; 201, a clamping piece; 201a, a mounting block; 201b, an adjusting groove; 201c, a clamping block; 201d, a first sticking block; 201e, a second sticking block; 201f, an adjusting rod; 201g, a through groove; 201h, a limiting block; 202, an adjusting piece; 202a, an inner cavity; 202b, an adjusting bolt; 202c, a rebounding block; 202d, a rebounding column; 202e, a tension spring; 202f, a blocking column; 202g, a hook-shaped block; 203, a locking piece; 203a, a sliding block; 203b, a locking block; 203c, a rotating shaft; 203d, a locking box; 203e, a pressing plate; 203f, a wedge block; 203g, a limiting rod; 203h, a compression spring; 204, an unlocking piece; 204a, a support frame; 204b, a toothed plate; 204c, a toothed disc; 204d, a rotating rod; 204e, a return spring; 204f, a torsion spring; 300, a wear-resistant assembly; 301, a wear-resistant piece; 301a, a hardfacing wear-resistant layer; 302, a ventilation piece; 302a, a ventilation opening. DETAILED DESCRIPTION

[0019] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0020] In the following description, a lot of specific details are set forth in order to give a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0021] Secondly, "one embodiment" or "embodiment" referred to herein means that a specific feature, structure or characteristic can be included in at least one implementation of the present application. "In one embodiment" appearing in different places in the specification does not mean the same embodiment, nor is it an embodiment that is independent of or mutually exclusive of other embodiments.

[0022] Embodiment 1

[0023] Referring to FIG. 1-5, for the first embodiment of the present application, the embodiment provides a welding device, comprising a structure assembly 100, including a structure member 101 and a striking plate member 102; a clamping assembly 200, including a clamping member 201 arranged on one side of the structure member 101, an adjusting member 202 arranged on one side of the structure member 101, a locking member 203 arranged on one side of the structure member 101, and an unlocking member 204 arranged on one side of the locking member 203; the clamping member 201 includes a mounting block 201a arranged on one side of the structure member 101, and a clamping block 201c slidingly arranged on one side of the mounting block 201a, and the clamping block 201c is in close contact with the striking plate member 102.

[0024] In some embodiments, the structure member 101 includes a bottom plate 101a, a support rod 101b arranged on one side of the bottom plate 101a, an adjusting plate 101c slidingly arranged on the outside of the support rod 101b, and a workbench 101d arranged on one side of the support rod 101b, and the striking plate member 102 includes a striking plate body 102a arranged on one side of the structure member 101.

[0025] In some embodiments, the clamping member 201 includes a mounting block 201a arranged on one side of the workbench 101d, an adjusting groove 201b opened on one side of the mounting block 201a, a clamping block 201c slidingly arranged on one side of the adjusting groove 201b, the clamping block 201c is arranged as an arc-shaped block on the side in contact with the adjusting groove 201b, so that it can slide along the direction of the adjusting groove 201b, a first sticking block 201d arranged on one side of the clamping block 201c, and a second sticking block 201e arranged on one side of the clamping block 201c, during welding, the first sticking block 201d is in close contact with the upper surface of the striking plate body 102a, and the second sticking block 201e is in close contact with the side wall surface of the striking plate body 102a, so as to clamp and fix the striking plate body 102a, the clamping member 201 includes an adjusting rod 201f slidingly arranged on one side of the adjusting plate 101c, and a through groove 201g opened on both sides of the clamping block 201c, one end of the adjusting rod 201f extends into the clamping block 201c and is slidingly arranged therein, and the clamping member 201 further includes a limiting block 201h arranged on both sides of the adjusting rod 201f, one end of the limiting block 201h extends into the through groove 201g, and the limiting block 201h is used for limiting the clamping block 201c.

[0026] In some embodiments, the adjusting piece 202 includes an inner cavity 202a opened on one side of the mounting block 201a, an adjusting bolt 202b threaded on one side of the mounting block 201a, the adjusting bolt 202b is slid inwards and outwards by rotating, so as to adjust the space inside the inner cavity 202a, thereby limiting the sliding distance of the rebound block 202c and the rebound column 202d, the rebound block 202c is slidably arranged on one side of the inner cavity 202a, the rebound column 202d is arranged on one side of the rebound block 202c, and the tension spring 202e is sleeved on one side of the rebound column 202d, the two ends of the tension spring 202e are connected with the side wall of the rebound column 202d and the side wall of the inner cavity 202a respectively, and the rebound block 202c and the rebound column 202d are reset at the same time, the adjusting piece 202 further includes a blocking column 202f arranged on one side of the clamping block 201c and a hook-shaped block 202g arranged on one side of the rebound block 202c, the hook-shaped block 202g is arranged on the outer side of the blocking column 202f, and the hook-shaped block 202g is used for limiting the blocking column 202f, thereby reducing the possibility of the blocking column 202f and the clamping block 201c falling off when sliding in the adjusting groove 201b.

[0027] Operation process: before welding, place the to-be-welded striking plate on the workbench 101d, then pull down the adjusting plate 101c, the adjusting plate 101c drives the adjusting rod 201f to slide, thereby driving the clamping block 201c to slide obliquely downward along the direction of the adjusting groove 201b, so that the first pad 201d tightly abuts against the upper surface of the striking plate body 102a, and the second pad 201e tightly abuts against the side wall surface of the striking plate body 102a, then the locking piece 203 is used for fixing, thereby realizing synchronous driving and clamping of the four clamping blocks 201c, quickly clamping and fixing the four corners of the striking plate, and then starting welding.

[0028] When the striking plate body 102a is taken out after welding, the unlocking piece 204 is used for unlocking, after unlocking, the adjusting rod 201f slides upward again, under the influence of the reset force of the tension spring 202e, the rebound column 202d and the rebound block 202c are reset and slide, thereby driving the blocking column 202f and the clamping block 201c to slide obliquely upward along the direction of the adjusting groove 201b, so that the clamping block 201c is away from the striking plate body 102a, and the clamping is released, and the adjusting bolt 202b is rotated and slid inwards and outwards, so as to adjust the space inside the inner cavity 202a, thereby limiting the sliding distance of the rebound block 202c and the rebound column 202d, and the hook-shaped block 202g is used for limiting the blocking column 202f during the sliding process, thereby reducing the possibility of the blocking column 202f and the clamping block 201c falling off when sliding in the adjusting groove 201b.

[0029] Embodiment 2

[0030] Referring to FIGS. 2-7, the second embodiment of the present application is different from the previous embodiment in that the locking member 203 comprises a sliding block 203a arranged outside the adjusting column, a locking block 203b arranged on one side of the sliding block 203a, the locking member 203 further comprises a rotating shaft 203c rotatably arranged on one side of the workbench 101d, a locking box 203d arranged on one side of the rotating shaft 203c, the locking box 203d is rotatable to drive the rotating shaft 203c to rotate, a pressing plate 203e slidingly arranged in the locking box 203d, and a wedge block 203f arranged on one side of the pressing plate 203e, the inclined surface of the wedge block 203f is in contact with the inclined surface of the locking block 203b.

[0031] In some embodiments, the locking member 203 further comprises a limiting rod 203g arranged in the locking box 203d and a compression spring 203h arranged in the locking box 203d, the two ends of the compression spring 203h are connected with the side wall of the pressing plate 203e and the inner side wall of the locking box 203d respectively, the compression spring 203h is used to drive the pressing plate 203e to reset, thereby driving the wedge block 203f to reset, when the sliding block 203a slides downward, the inclined surface of the locking block 203b is in contact with the inclined surface of the wedge block 203f, and the wedge block 203f is inwardly extruded, so that the wedge block 203f and the pressing plate 203e slide towards the locking box, when it is needed to pull the sliding block 203a upward, the horizontal part of the locking block 203b is in contact with the horizontal part of the wedge block 203f, thereby locking the sliding block 203a to achieve the fixation of the adjusting rod 201f and the clamping block 201c.

[0032] In some embodiments, the unlocking member 204 comprises a support frame 204a arranged on one side of the adjusting plate 101c, a toothed plate 204b slidingly arranged on the upper side of the support frame 204a, the upper side of the support frame 204a is provided with a sliding groove, the toothed plate 204b slides in the sliding groove and cannot fall off, and the length of the toothed plate 204b is greater than the length of the support frame 204a, a toothed disc 204c arranged on one side of the locking box 203d, and a rotating rod 204d arranged on one side of the toothed disc 204c, the toothed disc 204c and the toothed plate 204b are in meshing arrangement, the rotating rod 204d is fixedly arranged on one side of the toothed plate 204b, the rotating rod 204d drives the toothed disc 204c to rotate, the toothed disc 204c drives the toothed plate 204b to slide, and the toothed plate 204b is always in meshing arrangement with the toothed disc 204c and cannot fall off.

[0033] In some embodiments, the unlocking piece 204 further comprises a reset spring 204e sleeved outside the adjusting rod 201f, two ends of the reset spring 204e being connected with the side wall of the sliding block 203a and the side wall of the workbench 101d respectively, the reset spring 204e being used for reset driving of the sliding block 203a, a torsion spring 204f sleeved outside the rotating shaft 203c, the torsion spring 204f being used for reset rotation of the rotating shaft 203c and the locking box after unlocking, for next locking and fixing.

[0034] The rest of the structure is the same as that of Example 1.

[0035] Operation process: during the sliding of the sliding block 203a downwards, the inclined surface part of the locking block 203b is in contact with the inclined surface part of the wedge block 203f, the wedge block 203f is pressed inwards, and the wedge block 203f and the pressing plate 203e slide towards the inside of the locking box; when the sliding block 203a needs to be pulled upwards, the horizontal part of the locking block 203b is in contact with the horizontal part of the wedge block 203f, the sliding block 203a is locked and fixed, so as to realize the fixing of the adjusting rod 201f and the clamping block 201c, and the clamping and fixing of the impact plate body 102a.

[0036] When the adjusting plate 101c slides downwards to the end position, the toothed plate 204b can be engaged with the toothed disc 204c; when unlocking is needed, the rotating rod 204d is rotated to drive the toothed disc 204c to rotate, the toothed disc 204c drives the toothed plate 204b to slide, the toothed plate 204b drives the inner toothed disc 204c to rotate synchronously during the sliding of the toothed plate 204b, the toothed disc 204c drives the locking box 203d to rotate, so that the wedge block 203f and the locking block 203b are separated from each other, the sliding block 203a and the adjusting rod 201f can be adjusted up and down, so as to release the locking and fixing of the locking block 203b, and the four clamping blocks 201c are simultaneously released from the clamping and fixing of the impact plate body 102a; during the upward sliding, the toothed plate 204b is separated from the toothed disc 204c, the locking and fixing of the toothed disc 204c are released, and the locking box 203d is driven by the reset force of the torsion spring 204f to rotate, for next locking and fixing.

[0037] Example 3

[0038] Referring to FIGS. 8-9, the third embodiment of the present application is different from the above embodiments in that the third embodiment provides a coal mill striking plate including the welding device and further including a wear-resistant assembly 300 including a wear-resistant piece 301 arranged on one side of the striking plate body 102a and a ventilation piece 302 arranged on one side of the striking plate body 102a; the wear-resistant piece 301 includes a hardfacing wear-resistant layer 301a arranged on one side of the striking plate body 102a, and the ventilation piece 302 includes a ventilation opening 302a arranged on one side of the striking plate body 102a.

[0039] In some embodiments, the ventilation area of the striking wheel is increased by the ventilation opening 302a.

[0040] The remaining structures are the same as those of the second embodiment.

[0041] Operation process: The fan coal mill striking wheel is originally designed to have an outer striking plate 110 mm thick and an inner striking plate 130 mm thick, which are casted by a casting production process. Now, the striking plate is reformed to have an outer striking plate 80 mm thick and an inner striking plate 100 mm thick by a welding manufacturing process, and the base material is a hardfacing wear-resistant layer produced by a welding process. The comparison before and after the improvement is as follows:

[0042] The weight of one set of the original design striking plate is 3750 kg, and the weight of one set of the striking plate after the thickness change is 2849.88 kg. The weight of one set of the striking plate is reduced by 900.12 kg. After the weight is reduced, the starting inertia of the striking wheel when starting and stopping is changed, the starting current is reduced, the motor squirrel cage of the coal mill is protected, the energy consumption is reduced, the cost is saved, the ventilation area of each ventilation opening 302a of the striking wheel is increased after the design structure size is changed, the ventilation area of the striking wheel is increased, the manufacturing process is changed from casting to welding, and the service life of the striking plate is increased from 800 hours to 2000 hours.

[0043] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and all should be covered in the scope of the claims of the present application.

Claims

1. A welding device characterized by: The utility model relates to a construction assembly (100) and a clamping assembly (200), and the construction assembly (100) comprises a construction part (101) and a beating plate part (102). The clamping assembly (200) comprises a clamping part (201) arranged on one side of the construction part (101), an adjusting part (202) arranged on one side of the construction part (101), a locking part (203) arranged on one side of the construction part (101), and an unlocking part (204) arranged on one side of the locking part (203). The clamping part (201) comprises a mounting block (201a) arranged on one side of the construction part (101) and a clamping block (201c) slidingly arranged on one side of the mounting block (201a), and the clamping block (201c) is in close contact with the beating plate part (102). The construction part (101) comprises a bottom plate (101a), a support rod (101b) arranged on one side of the bottom plate (101a), an adjusting plate (101c) slidingly arranged on the outer side of the support rod (101b), and a workbench (101d) arranged on one side of the support rod (101b).

2. The welding device of claim 1, wherein: The beating plate part (102) comprises a beating plate body (102a) arranged on one side of the construction part (101). The clamping part (201) comprises a mounting block (201a) arranged on one side of the workbench (101d), an adjusting groove (201b) opened on one side of the mounting block (201a), a clamping block (201c) slidingly arranged on one side of the adjusting groove (201b), a first sticking block (201d) arranged on one side of the clamping block (201c), and a second sticking block (201e) arranged on one side of the clamping block (201c).

3. The welding device of claim 2, wherein: The clamping part (201) comprises an adjusting rod (201f) slidingly arranged on one side of the adjusting plate (101c) and a through groove (201g) opened on both sides of the clamping block (201c), and one end of the adjusting rod (201f) extends into the clamping block (201c) and is slidingly arranged therein.

4. The welding device of claim 2 or 3, wherein: The clamping part (201) further comprises limiting blocks (201h) arranged on both sides of the adjusting rod (201f), and one end of each limiting block (201h) extends into the through groove (201g). The adjusting part (202) comprises an inner cavity (202a) opened on one side of the mounting block (201a), an adjusting bolt (202b) screwedly arranged on one side of the mounting block (201a), a rebound block (202c) slidingly arranged on one side of the inner cavity (202a), a rebound column (202d) arranged on one side of the rebound block (202c), and a tension spring (202e) sleeved on one side of the rebound column (202d).

5. The welding apparatus of claim 4, wherein: The adjusting part (202) further comprises a blocking column (202f) arranged on one side of the clamping block (201c) and a hook-shaped block (202g) arranged on one side of the rebound block (202c), and the hook-shaped block (202g) is arranged on the outer side of the blocking column (202f). The locking part (203) comprises a sliding block (203a) arranged on the outer side of the adjusting column and a locking block (203b) arranged on one side of the sliding block (203a).

6. The welding apparatus of claim 5, wherein: ​ The locking piece (203) further comprises a rotating shaft (203c) arranged on one side of the workbench (101d), a locking box (203d) arranged on one side of the rotating shaft (203c), a pressing plate (203e) slidingly arranged in the locking box (203d), a wedge block (203f) arranged on one side of the pressing plate (203e). The inclined surface of the wedge block (203f) is in contact with the inclined surface of the locking block (203b).

7. The welding apparatus of claim 6, wherein: The locking piece (203) further comprises a limiting rod (203g) arranged in the locking box (203d) and a compression spring (203h) arranged in the locking box (203d), and two ends of the compression spring (203h) are connected with the side wall of the pressing plate (203e) and the inner side wall of the locking box (203d) respectively.

8. The welding device of claim 7, wherein: The unlocking piece (204) comprises a supporting frame (204a) arranged on one side of the adjusting plate (101c), a toothed plate (204b) slidingly arranged on the upper side of the supporting frame (204a), a toothed disc (204c) arranged on one side of the locking box (203d), and a rotating rod (204d) arranged on one side of the toothed disc (204c), and the toothed disc (204c) and the toothed plate (204b) are arranged in meshing mode.

9. The welding apparatus of claim 8, wherein: The unlocking piece (204) further comprises a reset spring (204e) sleeved on the outer side of the adjusting rod (201f) and a torsional spring (204f) sleeved on the outer side of the rotating shaft (203c). Two ends of the reset spring (204e) are connected with the side wall of the workbench (101d) and the side wall of the sliding block (203a) respectively.

10. A coal mill beater plate characterised in that: The welding device comprises the welding device of any one of claims 1-9, and further comprises a wear-resistant assembly (300) comprising a wear-resistant piece (301) arranged on one side of the striking plate body (102a) and a ventilation piece (302) arranged on one side of the striking plate body (102a). The wear-resistant piece (301) comprises a hardfacing wear-resistant layer (301a) arranged on one side of the striking plate body (102a), and the ventilation piece (302) comprises a ventilation opening (302a) formed on one side of the striking plate body (102a). The welding device comprises the welding device of any one of claims 1-9, and further comprises a wear-resistant assembly (300) comprising a wear-resistant piece (301) arranged on one side of the striking plate body (102a) and a ventilation piece (302) arranged on one side of the striking plate body (102a). The wear-resistant piece (301) comprises a hardfacing wear-resistant layer (301a) arranged on one side of the striking plate body (102a), and the ventilation piece (302) comprises a ventilation opening (302a) formed on one side of the striking plate body (102a).

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