CN214868387U - Carrier roller cross beam assembly welding tool of belt conveyor - Google Patents
Carrier roller cross beam assembly welding tool of belt conveyor Download PDFInfo
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- CN214868387U CN214868387U CN202122246025.8U CN202122246025U CN214868387U CN 214868387 U CN214868387 U CN 214868387U CN 202122246025 U CN202122246025 U CN 202122246025U CN 214868387 U CN214868387 U CN 214868387U
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Abstract
The utility model discloses a bearing roller crossbeam assembly welding frock of belt conveyor, including weldment work platform, the floorbar, the slide, weldment work platform top surface one side is equipped with first connection bedplate locating piece and second connection bedplate locating piece along the length direction interval, but and the second is connected bedplate locating piece horizontal displacement and is adjusted and interval between the first connection bedplate locating piece, weldment work platform top surface opposite side is fixed with the floorbar along its length direction, the floorbar sets up with first connection bedplate locating piece and second connection bedplate locating piece interval, the floorbar top surface is fixed with the slide along length direction, the slide top surface is equipped with two limit locating plates that can follow its length direction adjusting position. The utility model provides a pair of belt conveyor's bearing roller crossbeam assembly welding frock, each location size can adjust, is suitable for the assembly welding of the bearing roller crossbeam of multiple specification model, guarantees the uniformity of the same specification crossbeam simultaneously, improves assembly welding efficiency.
Description
Technical Field
The utility model relates to a bearing roller crossbeam assembly welding frock technical field specifically is a belt conveyor's bearing roller crossbeam assembly welding frock.
Background
The belt conveyor is a common bulk cargo conveying device, has the advantages of large conveying capacity in unit time, long conveying distance, low conveying cost and the like, and is increasingly adopted in mines, stock yards and other occasions. The carrier roller crossbeam is a welding structure member with the largest use amount of the equipment, and has various specifications and models according to the width of a conveying belt, the material conveying state, the conveying path angle and other factors. The installation sizes of the carrier roller cross beams of the same model require consistency and interchangeability. At present, the welding mode of the carrier roller cross beam is manual scribing positioning assembly welding or special assembly welding clamping fixture assembly welding, the size cannot reach interchangeability, or a plurality of assembly welding clamping fixtures are required for assembly welding, the production field is occupied, the clamping fixtures are frequently replaced, and the production efficiency is influenced. The welding of the carrier roller cross beam becomes the bottleneck process of the belt conveyor production.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a belt conveyor's bearing roller crossbeam assembly welding frock, each location size can adjust, is suitable for the assembly welding of the bearing roller crossbeam of multiple specification model, guarantees the uniformity of the same specification crossbeam simultaneously, improves assembly welding efficiency, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a bearing roller crossbeam assembly welding frock of belt conveyor, including weldment work platform, the floorbar, the slide, weldment work platform top surface one side is equipped with first connection bedplate locating piece and second connection bedplate locating piece along the length direction interval, but second connection bedplate locating piece horizontal displacement adjusts and the interval between the first connection bedplate locating piece, weldment work platform top surface opposite side is fixed with the floorbar along its length direction, the floorbar sets up with first connection bedplate locating piece and second connection bedplate locating piece interval, the floorbar top surface is fixed with the slide along length direction, the slide top surface is equipped with two limit locating plates that can follow its length direction adjusting position, be equipped with two well locating plates that can follow slide length direction adjusting position between two limit locating plates.
Further, the first connecting seat board positioning block and the second connecting seat board positioning block are both provided with connecting seat board positioning block positioning holes, the top surface of the welding workbench is provided with connecting seat board positioning block positioning grooves corresponding to the connecting seat board positioning block positioning holes, fasteners used for fastening the second connecting seat board positioning block in a matched manner with the connecting seat board positioning block positioning grooves are arranged in the connecting seat board positioning holes, the surface of the sliding plate is provided with a plurality of positioning holes along the length direction, the side support positioning plate is provided with side support positioning plate positioning grooves corresponding to the positioning holes, fasteners matched with the positioning holes and used for fastening the side support positioning plate are arranged in the side support positioning plate positioning grooves, the surface of the middle support positioning plate is provided with a middle support positioning plate positioning groove corresponding to the positioning holes, fasteners matched with the positioning holes and used for fastening the middle support positioning plate are arranged in the middle part of the top surface of the welding workbench along the length direction, and the beam angle steel positioning plate can adjust the position corresponding to the width direction of the welding workbench.
Further, still be equipped with the bearing roller crossbeam, the bearing roller crossbeam includes the crossbeam angle steel, the limit is propped, the connection bedplate, the inboard that first connection bedplate locating piece and second connection bedplate locating piece are relative all is equipped with the connection bedplate, two connection bedplate top surfaces are connected with crossbeam angle steel both ends respectively, crossbeam angle steel top is close to both ends and is equipped with the limit respectively and prop, the interval is equipped with two well props between two limits, and prop up and set up at crossbeam angle steel top in, the limit props up and props up the top and be equipped with the locating lever rather than establishing ties each other.
Furthermore, crossbeam angle steel locating plate constant head tank that is used for following weldment work platform width direction adjusting position is seted up to crossbeam angle steel locating plate face, and the weldment work platform top surface is seted up a plurality of crossbeam angle steel locating plate locating holes that are used for installing crossbeam angle steel locating plate with crossbeam angle steel locating plate constant head tank cooperation along length direction.
Furthermore, the top surface of the side supporting positioning plate is fixed with a side supporting plate with a vertical plate surface, the side supporting plate surface is provided with a side supporting plate positioning plate with adjustable height, and the upper part of the side supporting plate positioning plate is provided with an outward flange.
Furthermore, the side supporting plate positioning groove is formed in the side supporting plate surface, and the height positioning hole corresponding to the side supporting plate positioning groove is formed in the side supporting plate positioning plate surface.
Furthermore, a reinforcing plate with a vertical plate surface is fixed on the top surface of the middle support positioning plate.
Further, the fastener is a bolt or a pin.
Furthermore, the first connecting seat plate positioning block and the second connecting seat plate positioning block are provided with openings for conveniently taking the connecting seat plates corresponding to the side edges of the connecting seat plates.
Further, the opening of the beam angle steel is downward.
Compared with the prior art, the beneficial effects of the utility model are that: placing two connecting seat boards at the inner sides of a first connecting seat board positioning block and a second connecting seat board positioning block respectively, placing a beam angle steel transversely on the top surface of the connecting seat boards, wherein two ends of the beam angle steel correspond to the two connecting seat boards respectively, the two beam angle steel positioning plates are abutted against the beam angle steel, so that the length direction of the beam angle steel is positioned to be vertical to the length direction of the connecting seat boards, placing two side supports at the top parts of the beam angle steel near two ends, simultaneously, enabling the side support positioning plates and the side support positioning plates to be matched and positioned and support the side supports by abutting against the side support positioning plates, placing two middle supports at the top parts of the beam angle steel and between the two side supports, simultaneously, respectively abutting against two middle support positioning plates to position the middle supports, when the distance between the two connecting seat boards needs to be adjusted, and by adjusting the position of the second connecting positioning block, so as to be positioned and adapted to the distance between the two connecting seat boards, the fastener passes through the positioning hole of the positioning block of the connecting seat plate and the positioning groove of the positioning block of the connecting seat plate to fix the position of the positioning block of the second connecting seat plate, when the position of the crossbeam angle steel positioning plate is adjusted, so that the crossbeam angle steel positioning plate adjusts and positions the crossbeam angle steel, the fastener passes through the positioning hole of the crossbeam angle steel positioning plate and the positioning hole of the crossbeam angle steel positioning plate to fix the position of the crossbeam angle steel positioning plate, when the position of the side support is required to be adjusted and positioned, the position of the side support positioning plate on the sliding plate is adjusted, then the fastener passes through the positioning hole of the side support positioning plate and the positioning hole to fix the position of the side support positioning plate, when the side support positioning plate is required to adapt to the height of the side support, the height of the side support positioning plate is adjusted, then the fastener passes through the height positioning hole of the side support positioning hole and the positioning hole of the side support positioning plate to fasten the side support positioning plate, when the middle support positioning plate is required to adapt to the position of the middle support, the position of the middle support positioning plate on the sliding plate is adjusted, and then the fastener penetrates through the positioning groove of the middle support positioning plate and the positioning hole to fasten the position of the middle support positioning plate, so that the assembly welding of carrier roller cross beams with various specifications is suitable for the adjustment of each positioning piece.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention;
FIG. 3 is a schematic view of the positioning groove of the side support plate of the present invention;
fig. 4 is a schematic diagram of the structure of the side supporting height positioning plate of the present invention.
In the figure: 101. a welding workbench; 102. a bottom beam; 103. a slide plate; 104. positioning holes; 105. a side support positioning plate; 106. a positioning groove of the side support positioning plate; 107. a side support plate; 108. a side supporting vertical plate positioning plate; 109. a side support vertical plate positioning groove; 110. a height positioning hole; 111. a middle support positioning plate; 112. a middle support positioning plate positioning groove; 113. a reinforcing plate; 114. a beam angle steel positioning plate; 115. a positioning groove of the beam angle steel positioning plate; 116. a first connecting seat plate positioning block; 117. a second connecting seat plate positioning block; 118. positioning holes of positioning blocks of the connecting seat plate; 119. connecting the positioning block positioning slot of the seat plate; 120. positioning holes of the beam angle steel positioning plates; 201. beam angle steel; 202. supporting the edges; 203. middle branch; 204. connecting the seat plate; 205. and (5) positioning the rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a bearing roller crossbeam assembly welding frock of belt conveyor, including weldment work platform 101, the floorbar 102, slide 103, weldment work platform 101 top surface one side is equipped with first connection bedplate locating piece 116 and second connection bedplate locating piece 117 along length direction interval, but second connection bedplate locating piece 117 horizontal displacement adjusts and the interval between first connection bedplate locating piece 116, weldment work platform 101 top surface opposite side is fixed with the floorbar 102 along its length direction, the floorbar 102 sets up with first connection bedplate locating piece 116 and second connection bedplate locating piece 117 interval, the floorbar 102 top surface is fixed with slide 103 along length direction, slide 103 top surface is equipped with two limit locating plates 105 that can follow its length direction adjusting position, be equipped with two middle branch locating plates 111 that can follow slide 103 length direction adjusting position between two limit locating plates 105.
Preferably, the first connecting seat plate positioning block 116 and the second connecting seat plate positioning block 117 are both provided with connecting seat plate positioning block positioning holes 118, the top surface of the welding workbench 101 is provided with connecting seat plate positioning block positioning slots 119 corresponding to the connecting seat plate positioning block positioning holes 118, fasteners for fastening the second connecting seat plate positioning block 117 in cooperation with the connecting seat plate positioning block positioning slots 119 are arranged in the connecting seat plate positioning holes 118, the plate surface of the slide plate 103 is provided with a plurality of positioning holes 104 along the length direction, the side support positioning plate 105 is provided with side support positioning plate positioning slots 106 corresponding to the positioning holes 104, fasteners for fastening the side support positioning plate 105 in cooperation with the positioning holes 104 are arranged in the side support positioning slots 106, the plate surface of the middle support positioning plate 111 is provided with middle support positioning plate positioning slots 112 corresponding to the positioning holes 104, fasteners for fastening the middle support positioning plate 111 in cooperation with the positioning holes 104 are arranged in the middle support positioning plate positioning slots 112, at least two beam angle steel positioning plates 114 are arranged in the middle of the top surface of the welding workbench 101 along the length direction, the beam angle steel positioning plates 114 can be adjusted in positions corresponding to the width direction of the welding workbench 101, the positions of the beam angle steel positioning plates 114 along the width direction of the welding workbench 101 are adjusted through beam angle steel positioning plate positioning grooves 115, and then the beam angle steel positioning plates 114 are fastened through fasteners.
Preferably, the carrier roller cross beam is further arranged, the carrier roller cross beam comprises a cross beam angle steel 201, side supports 202 and a connecting seat plate 204, the connecting seat plate 204 is arranged on the inner sides of the first connecting seat plate positioning block 116 and the second connecting seat plate positioning block 117, the top surfaces of the two connecting seat plates 204 are respectively connected with the two ends of the cross beam angle steel 201, the side supports 202 are respectively arranged at the top parts of the cross beam angle steel 201 close to the two ends, the side support positioning plate 105 is far away from one end of the sliding plate 103 and abuts against the side supports 202, two middle supports 203 are arranged between the two side supports 202 at intervals, the middle supports 203 are arranged at the top parts of the cross beam angle steel 201, the middle support positioning plate 111 is far away from one end of the sliding plate 103 and abuts against the middle supports 203, and the top ends of the side supports 202 and the middle supports 203 are provided with positioning rods 205 which are connected in series.
Preferably, a crossbeam angle steel positioning plate positioning groove 115 used for adjusting the position along the width direction of the welding workbench 101 is formed in the surface of the crossbeam angle steel positioning plate 114, a plurality of crossbeam angle steel positioning plate positioning holes 120 used for installing the crossbeam angle steel positioning plate 114 in a matching manner with the crossbeam angle steel positioning plate positioning groove 115 are formed in the top surface of the welding workbench 101 along the length direction, the position of the crossbeam angle steel positioning plate 114 along the length direction of the welding workbench 101 can be adjusted through the crossbeam angle steel positioning plate positioning holes 120, then the crossbeam angle steel positioning plate 114 is fixed through a fastener, the position of the crossbeam angle steel positioning plate 114 along the width direction of the welding workbench 101 is adjusted through the crossbeam angle steel positioning plate positioning groove 115, and then the crossbeam angle steel positioning plate 114 is fixed through the fastener.
Preferably, the top surface of the side supporting positioning plate 105 is fixed with a side supporting plate 107 with a vertical plate surface, the plate surface of the side supporting plate 107 is provided with a side supporting plate positioning plate 108 with an adjustable height, the upper part of the side supporting plate positioning plate 108 is provided with a flanging outwards used for abutting against the side supporting plate 202, and the height of the side supporting plate positioning plate 108 can be adjusted according to the height of the side supporting plate 202.
Preferably, the side supporting plate 107 has a side supporting plate positioning slot 109 formed on the plate surface, and the side supporting plate positioning plate 108 has a height positioning hole 110 formed on the plate surface corresponding to the side supporting plate positioning slot 109.
Preferably, a reinforcing plate 113 with a vertical plate surface is fixed on the top surface of the middle support positioning plate 111, and the reinforcing plate 113 reinforces the stability of the middle support positioning plate 111.
Preferably, the fastener is a bolt or a pin.
Preferably, the first connecting seat plate positioning block 116 and the second connecting seat plate positioning block 117 are provided with an opening degree for conveniently taking the connecting seat plate 204 corresponding to the side edge of the connecting seat plate 204, the opening degree is 0.3 degree, so that the carrier roller beam is prevented from being jammed in the moving-out process after being assembled and welded, and the mounting hole distance meets the precision requirement.
Preferably, the beam angle steel 201 is downward opened, and the beam angle steel 201 stably connects the two connecting seat plates 204 and simultaneously stably supports the side support 202 and the middle support 203.
When in use: placing two connecting seat plates 204 respectively at the inner sides of the first connecting seat plate positioning block 116 and the second connecting seat plate positioning block 117, placing a beam angle steel 201 transversely on the top surface of the connecting seat plate 204, wherein two ends of the beam angle steel 201 correspond to the two connecting seat plates 204 respectively, the beam angle steel 201 can be replaced by a round steel pipe, two beam angle steel positioning plates 114 abut against the beam angle steel 201, thereby positioning the length direction of the beam angle steel 201 to be vertical to the length direction of the connecting seat plate 204, placing two side supports 202 at the top of the beam angle steel 201 near two ends, simultaneously positioning the side support positioning plates 105 by abutting against the side support positioning plates 105, enabling the side support positioning plates 105 and the side support positioning plates 108 to be matched and positioned and support the side supports 202, placing two middle supports 203 at the top of the beam angle steel 201 and between the two side supports 202, simultaneously, respectively abutting against the two middle supports 203 against the two middle support positioning plates 111, so that the middle support positioning plates 111 position the middle supports 203, when the distance between the two connecting seat plates 204 needs to be adjusted, the distance between the two connecting seat plates 204 is adjusted by adjusting the position of the second connecting seat plate positioning block 117, the position of the second connecting seat plate positioning block 117 is fixed by a fastener penetrating through the connecting seat plate positioning block positioning hole 118 and the connecting seat plate positioning block positioning groove 119, when the position of the crossbeam angle steel positioning plate 114 is adjusted, the position of the crossbeam angle steel 201 is adjusted and positioned by the crossbeam angle steel positioning plate 114, the position of the crossbeam angle steel positioning plate 114 is fixed by a fastener penetrating through the crossbeam angle steel positioning plate positioning groove 115 and the crossbeam angle steel positioning plate positioning hole 120, when the position of the side support 202 needs to be adjusted, the position of the side support positioning plate 105 on the sliding plate 103 is adjusted, then the position of the side support positioning plate 105 is fixed by a fastener penetrating through the side support positioning plate positioning groove 106 and the positioning hole 104, when the side support positioning plate 108 needs to be adapted to the height of the side support 202, the height of the side support positioning plate 108 is adjusted, and then the fastener passes through the height positioning hole 110 and the side support plate positioning groove 109 to fasten the side support plate positioning plate 108, when the middle support positioning plate 111 needs to adapt to the position of the middle support 203, the position of the middle support positioning plate 111 on the sliding plate 103 is firstly adjusted, and then the fastener passes through the middle support positioning plate positioning groove 112 and the positioning hole 104 to fasten the position of the middle support positioning plate 111, so that the assembly welding of carrier roller beams with various specifications is suitable through the adjustment of each positioning piece.
The non-public part of the utility model is the prior art, and the concrete structure, the material and the working principle are not detailed. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a bearing roller crossbeam assembly welding frock of belt conveyor which characterized in that: comprises a welding workbench (101), a bottom beam (102) and a sliding plate (103), wherein one side of the top surface of the welding workbench (101) is provided with a first connecting seat plate positioning block (116) and a second connecting seat plate positioning block (117) at intervals along the length direction, and the second connecting seat plate positioning block (117) can be horizontally displaced to adjust the distance between the second connecting seat plate positioning block and the first connecting seat plate positioning block (116), a bottom beam (102) is fixed on the other side of the top surface of the welding workbench (101) along the length direction of the welding workbench, the bottom beam (102) is arranged at intervals with the first connecting seat plate positioning block (116) and the second connecting seat plate positioning block (117), a sliding plate (103) is fixed on the top surface of the bottom beam (102) along the length direction, two side supporting positioning plates (105) capable of adjusting positions along the length direction of the sliding plate (103) are arranged on the top surface of the sliding plate (103), and two middle supporting positioning plates (111) capable of adjusting positions along the length direction of the sliding plate (103) are arranged between the two side supporting positioning plates (105).
2. The assembly welding tool for the carrier roller beam of the belt conveyor according to claim 1, characterized in that: a connecting seat plate positioning block positioning hole (118) is formed in each of the first connecting seat plate positioning block (116) and the second connecting seat plate positioning block (117), a connecting seat plate positioning block positioning groove (119) corresponding to the connecting seat plate positioning block positioning hole (118) is formed in the top surface of the welding workbench (101), a fastener for fastening the second connecting seat plate positioning block (117) in a matching manner with the connecting seat plate positioning block positioning groove (119) is arranged in each connecting seat plate positioning block positioning hole (118), a plurality of positioning holes (104) are formed in the surface of the sliding plate (103) along the length direction, a side supporting positioning plate positioning groove (106) corresponding to the positioning hole (104) is formed in each side supporting positioning plate (105), a fastener for fastening the side supporting positioning plate (105) in a matching manner with the positioning holes (104) is arranged in each side supporting positioning plate positioning groove (106), a middle supporting positioning plate (111) is formed in the surface of the middle supporting positioning plate (112) corresponding to the positioning holes (104), the middle support positioning plate positioning groove (112) is internally provided with a fastener which is matched with the positioning hole (104) and used for fastening the middle support positioning plate (111), the middle part of the top surface of the welding workbench (101) is provided with at least two beam angle steel positioning plates (114) along the length direction, and the beam angle steel positioning plates (114) can be adjusted in position corresponding to the width direction of the welding workbench (101).
3. The assembly welding tool for the carrier roller beam of the belt conveyor according to claim 1, characterized in that: still be equipped with the bearing roller crossbeam, the bearing roller crossbeam includes crossbeam angle steel (201), limit (202), connection bedplate (204), the inboard that first connection bedplate locating piece (116) and second connection bedplate locating piece (117) are relative all is equipped with connection bedplate (204), two connection bedplate (204) top surfaces are connected with crossbeam angle steel (201) both ends respectively, crossbeam angle steel (201) top is close to both ends and is equipped with limit (202) respectively, the interval is equipped with two between two limits (202) and props (203), and prop up (203) and set up at crossbeam angle steel (201) top in, limit prop up (202) and prop up (203) top and be equipped with locating lever (205) of establishing ties each other with it.
4. The assembly welding tool for the carrier roller beam of the belt conveyor according to claim 2, characterized in that: crossbeam angle steel locating plate locating slot (115) that is used for following weldment work platform (101) width direction adjusting position is seted up to crossbeam angle steel locating plate (114) face, and weldment work platform (101) top surface is seted up a plurality of crossbeam angle steel locating plate locating holes (120) that are used for installing crossbeam angle steel locating plate (114) with crossbeam angle steel locating plate locating slot (115) cooperation along length direction.
5. A roller beam assembly welding tool for a belt conveyor according to claim 1 or 2, characterized in that: the top surface of the side supporting positioning plate (105) is fixed with a side supporting plate (107) with a vertical plate surface, the plate surface of the side supporting plate (107) is provided with a side supporting plate positioning plate (108) with adjustable height, and the upper part of the side supporting plate positioning plate (108) is provided with an outward flange.
6. The assembly welding tool for the carrier roller beam of the belt conveyor according to claim 5, wherein the assembly welding tool comprises: the surface of the side supporting plate (107) is provided with a side supporting plate positioning groove (109), and the surface of the side supporting plate positioning plate (108) is provided with a height positioning hole (110) corresponding to the side supporting plate positioning groove (109).
7. A roller beam assembly welding tool for a belt conveyor according to any one of claims 1, 2 and 3, characterized in that: a reinforcing plate (113) with a vertical plate surface is fixed on the top surface of the middle support positioning plate (111).
8. The assembly welding tool for the carrier roller beam of the belt conveyor according to claim 2, characterized in that: the fastener is a bolt or a pin.
9. The assembly welding tool for the carrier roller beam of the belt conveyor according to claim 3, characterized in that: the first connecting seat plate positioning block (116) and the second connecting seat plate positioning block (117) are provided with openings for conveniently taking the connecting seat plates (204) corresponding to the side edges of the connecting seat plates (204).
10. The assembly welding tool for the carrier roller beam of the belt conveyor according to claim 3, characterized in that: the beam angle steel (201) is opened downwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122246025.8U CN214868387U (en) | 2021-09-16 | 2021-09-16 | Carrier roller cross beam assembly welding tool of belt conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122246025.8U CN214868387U (en) | 2021-09-16 | 2021-09-16 | Carrier roller cross beam assembly welding tool of belt conveyor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214868387U true CN214868387U (en) | 2021-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122246025.8U Active CN214868387U (en) | 2021-09-16 | 2021-09-16 | Carrier roller cross beam assembly welding tool of belt conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214868387U (en) |
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2021
- 2021-09-16 CN CN202122246025.8U patent/CN214868387U/en active Active
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