CN212599812U - Welding wheel of narrow lap welding machine - Google Patents

Abstract

The utility model discloses a narrow overlap joint welding machine welding wheel, it can avoid the emergence of the dead accident of drive gear card through the gear safety cover of installing additional below bonding tool drive gear and the lower drive pinion, fine stability and the security of having guaranteed welding process have improved the operating rate of production line to operation safety, convenience, stability are good.

Description

Welding wheel of narrow lap welding machine

Technical Field

The utility model belongs to the steel industry machinery, concretely relates to narrow overlap joint welding machine welds wheel, especially relates to a narrow overlap joint welding machine who installs the safety cover above the drive gear who welds the wheel.

Background

The welding process is a key process necessary for the continuous production process of hot galvanizing, continuous annealing, silicon steel and other strip steels, and the safety and the high efficiency of the welding operation directly influence the production rhythm and the continuity of a production line. In the production line of galvanizing, continuous annealing and silicon steel, the annealing process of the strip steel is required, the connection of all the working procedures is strong, and the product quality is influenced and even waste products are generated by any one-time speed reduction and stop. The narrow lap welder is mainly used for a plate processing line for deep processing of metallurgical enterprises, is a necessary single device for realizing continuous production of a production line, and has the characteristics of high integration level, good stability, lower price than a laser welder and the like, so that the narrow lap welder still has wide application prospect at present. The welding wheel driving device is a key component of the narrow lap welding machine, the service life and the stability of the driving device directly influence the operation stability of the welding machine and the quality of a welding seam of strip steel, and further influence the stability of the whole continuous production line. In normal production, pinion about upper and lower pneumatic motor drives respectively, upper and lower pinion meshes together respectively with the upper and lower gear wheel of upper and lower welding wheel fixed, it rolls belted steel and accomplishes welding operation to weld the wheel to carry out synchronous revolution under its pneumatic motor's drive separately from top to bottom, welding process and welding wheel can produce a large amount of welding slag and drop at the online coping in-process, because this gear drive is open structure, welding slag and dust can drop to the gear of welding wheel down frequently, the wearing and tearing of gear have aggravated, lead to the dead phenomenon of gear card even, in case the irrotational that will directly lead to welding wheel is died to the gear card in welding process, finally lead to welding operation's failure and driving motor's damage. The production line is shut down, accident time and unqualified products are generated, and the operating rate of the production line is influenced. Therefore, the service life and the stability of the driving transmission gear of the welding wheel are important.

SUMMERY OF THE UTILITY MODEL

Aiming at one or more problems in the prior art, the utility model provides a welding wheel of a narrow lap welding machine, which comprises a lower welding wheel (1), a lower welding head (2), a lower welding head driving gear (3), a lower driving pinion (4), a lower driving motor (5), a lower welding head lifting cylinder (6), an upper welding wheel (7), an upper welding head (8), an upper welding head driving gear (9), an upper driving pinion (10), an upper driving motor (11), a welding wheel grinding wheel (12), a bracket (13), a lower rolling wheel (14), a first supporting seat (15), a hydraulic cylinder (16), an upper rolling wheel (17) and a second supporting seat (18), wherein the lower welding wheel (1) is arranged on the lower welding head (2), the lower welding head driving gear (3) and the lower welding wheel (1) are fixed together and can be synchronously arranged on the lower welding head (2), the lower driving pinion (4) is arranged on the lower driving motor (5), and is connected with a lower welding head driving gear (3), a lower driving motor (5) is arranged on the lower welding head (2), and the cylinder head of a lower welding head lifting cylinder (6) is connected with the lower welding head (2); the upper welding wheel (7) is arranged on the upper welding head (8), an upper welding head driving gear (9) and the upper welding wheel (7) are fixed together and are jointly arranged on the upper welding head (8) to be capable of synchronously rotating, an upper driving pinion (10) is arranged on an upper driving motor (11), and is connected with an upper welding head driving gear (9), an upper driving motor (11) is arranged on an upper welding head (8), a welding wheel grinding wheel (12) is arranged on a bracket (13), a lower grinding wheel (14) is arranged on a first supporting seat (15), the first supporting seat (15) is connected with a cylinder rod of a hydraulic cylinder (16), an upper grinding wheel (17) is arranged on a second supporting seat (18), wherein the welding wheel of the narrow lap welder also comprises a gear protective cover (21) which is fixedly arranged on the lower welding head (2), and is located above the lower horn drive gear (3) and the lower drive pinion (4).

The gear protection cover (21) is fixedly arranged on the lower welding head (2) through a fixing bolt (22).

The narrow lap welding machine welding wheel provided based on the technical scheme can avoid the occurrence of the accident of locking of the driving gear by additionally arranging the gear protection cover above the lower welding head driving gear and the lower driving pinion, well ensures the stability and the safety of the welding process, improves the operating rate of a production line, and is safe, convenient and good in operation and stability. The utility model provides a protector of narrow lap welding machine welding wheel simple structure, light in weight, convenient operation and maintenance have improved production efficiency to make drive gear flank of tooth clean, also guaranteed good lubrication, improved drive gear's life-span, practiced thrift the manufacturing cost of product, improved the competitiveness of enterprise.

Drawings

FIG. 1 is a schematic diagram of a welding wheel and its driving part of a narrow lap welder in the prior art;

fig. 2 is a schematic structural diagram of a lower driving part of a welding wheel of a narrow lap welder provided by the utility model.

Detailed Description

The following describes the present invention in detail with reference to the accompanying drawings. It should be understood that the following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

As shown in fig. 1, a schematic structural diagram of a welding wheel of a narrow lap welder and a driving part thereof in the prior art is shown, and the welding wheel of the narrow lap welder includes a lower welding wheel 1, a lower welding head 2, a lower welding head driving gear 3, a lower driving pinion 4, a lower driving motor 5, a lower welding head lifting cylinder 6, an upper welding wheel 7, an upper welding head 8, an upper welding head driving gear 9, an upper driving pinion 10, an upper driving motor 11, a welding wheel grinding wheel 12, a bracket 13, a lower rolling wheel 14, a first supporting seat 15, a hydraulic cylinder 16, an upper rolling wheel 17, and a second supporting seat 18. Wherein lower welding wheel 1 is installed on lower welding head 2, lower welding head drive gear 3 is together fixed with lower welding wheel 1, install jointly and can synchronous revolution on lower welding head 2, lower drive pinion 4 is installed on drive motor 5 down to with lower welding head drive gear 3 bonding together, lower drive motor 5 is installed on lower welding head 2, lower welding head lifting cylinder 6 cylinder head is connected with lower welding head 2, the cylinder is fixed on welding machine C type moving frame, lower welding head lifting cylinder 6 can promote lower welding head 2 to the high position. The upper welding wheel 7 is arranged on an upper welding head 8, an upper welding head driving gear 9 and the upper welding wheel 7 are fixed together, the upper welding head 8 and the upper welding head driving gear are jointly arranged and can synchronously rotate, an upper driving pinion 10 is arranged on an upper driving motor 11 and is bonded with the upper welding head driving gear 9, the upper driving motor 11 is arranged on the upper welding head 8, a welding wheel grinding wheel 12 is arranged on a support 13 and can freely roll, the support 13 is fixed on a base, a lower grinding wheel 14 is arranged on a first support seat 15 and can freely roll, the first support seat 15 is connected with a hydraulic cylinder 16 rod together, the hydraulic cylinder 16 is arranged and fixed on a welding machine C-shaped moving frame, the hydraulic cylinder 16 can push the lower grinding wheel 14 to a high position, the upper grinding wheel 17 is arranged on a second support seat 18, and the second support seat 18 is fixed on the welding machine C.

When the device is used, the head 19 and the tail 20 of the strip steel are respectively supported on platforms of a welding inlet and a welding outlet, and the tail 20 of the strip steel is partially overlapped and lapped with the head 19 of the strip steel to wait for welding operation. During welding operation, a welding signal is sent out after the lap joint of the strip steel tail part 20 and the strip steel head part 19 is finished, after a welding command is received by a welding machine, a C-shaped moving frame of the welding machine horizontally moves towards one side of the strip steel, and simultaneously drives a lower welding head 2 and an upper welding head 8 to move together, and the lower welding head 2 is lifted to a high position under the pushing of a lower welding head lifting cylinder 6, and simultaneously a lower driving motor 5 drives a lower driving pinion 4 to rotate anticlockwise, a lower welding head driving gear 3 bonded with the pinion 4 drives a lower welding wheel 1 to rotate clockwise, and simultaneously an upper driving motor 11 drives an upper driving pinion 10 to rotate clockwise, an upper welding head driving gear 9 bonded with the pinion 10 drives an upper welding wheel 7 to rotate anticlockwise, at the moment, the lower welding wheel 1 and the upper welding wheel 7 are contacted and tangent with the excircle, current is introduced before the strip steel head part 19 is contacted, the lap joint of, the hydraulic cylinder 16 pushes and lifts the lower rolling wheel 14 to a high position to form a crack with the upper rolling wheel 17, and the lower rolling wheel 14 and the upper rolling wheel 17 roll the crack after following the lower welding wheel 1 and the upper welding wheel 7, so that the welding quality of the crack is improved; until the strip steel is completely welded, the lower welding head lifting cylinder 6 is retracted to the low position, the welding wheel 1 is lowered to the initial low position, the lower driving motor 5 and the upper driving motor 11 stop rotating, the hydraulic cylinder 16 is lowered to the low position, the lower rolling wheel 14 is lowered to the initial low position, then the welding machine C-shaped movable frame returns to the initial position, the strip steel is stretched and operated after the welding operation is completed, because the narrow lap welding machine belongs to hot melt covering welding, a large amount of steel slag can be bonded on the arc surfaces of the lower welding wheel 1 and the upper welding wheel 7, and in order to guarantee the next welding, the arc surfaces of the welding wheels need to be ground online: at the moment, the lower welding wheel 1 is pushed by the lower welding head lifting cylinder 6 to be lifted to be in contact with and tangent with the outer circle of the grinding wheel 12, then the lower driving motor 5 drives the lower driving pinion 4 to rotate anticlockwise, the lower welding head driving gear 3 bonded with the lower driving pinion 4 drives the lower welding wheel 1 to rotate clockwise, meanwhile, the upper driving motor 11 drives the upper driving pinion 10 to rotate clockwise, the upper welding head driving gear 9 bonded with the pinion 10 drives the upper welding wheel 7 to rotate anticlockwise, the steel slag on the arc surfaces of the upper welding wheel and the lower welding wheel is cleaned by utilizing the interference friction of the rotating directions of the lower welding wheel 1, the upper welding wheel 7 and the welding wheel grinding wheel 12, after grinding is completed, the lower welding head lifting cylinder 6 is retracted to be in a low position, the welding wheel 1 is lowered to be in an initial low position, and the lower driving motor 5 and the upper driving motor 11 stop rotating, so that the on-line grinding operation of the welding. Welding process and welding wheel can produce a large amount of welding slags at the online coping in-process and drop, because this gear drive is open structure, welding slags and dust can fall under to the gear of welding wheel often, have aggravated the wearing and tearing of gear, lead to the dead phenomenon of gear card even, in case in welding process the gear card die will directly lead to the irrotational of welding wheel, finally lead to welding operation's failure and driving motor's damage. The production line is shut down, accident time and unqualified products are generated, and the operating rate of the production line is influenced.

As shown in fig. 2, the utility model provides a structural schematic diagram of the lower driving part of the welding wheel of the narrow lap welder, wherein B is the partial structure side view of installing the gear protection cover in a, it can be seen that the welding wheel of the narrow lap welder further comprises a gear protection cover 21, which is fixedly arranged on the lower welding head 2 through a fixing bolt 22 and is located above the lower welding head driving gear 3 and the lower driving pinion 4. Therefore, the problem that a large amount of welding slag falls on the tooth surface in the welding process and the on-line grinding process of the welding wheel can be avoided, dust is prevented from depositing on the tooth surface, the cleanliness of the tooth surface is well guaranteed, good lubricating conditions are created, the service life of the driving gear is prolonged, the occurrence of the accident that the driving gear is blocked is avoided, the stability and the safety of the welding process are well guaranteed, and the operation rate of a production line is improved.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (2)

1. A welding wheel of a narrow lap welding machine comprises a lower welding wheel (1), a lower welding head (2), a lower welding head driving gear (3), a lower driving pinion (4), a lower driving motor (5), a lower welding head lifting cylinder (6), an upper welding wheel (7), an upper welding head (8), an upper welding head driving gear (9), an upper driving pinion (10), an upper driving motor (11), a welding wheel grinding wheel (12), a bracket (13), a lower grinding wheel (14), a first supporting seat (15), a hydraulic cylinder (16), an upper grinding wheel (17) and a second supporting seat (18), wherein the lower welding wheel (1) is arranged on the lower welding head (2), the lower welding head driving gear (3) and the lower welding wheel (1) are fixed together and can be arranged on the lower welding head (2) together to rotate synchronously, the lower driving pinion (4) is arranged on the lower driving motor (5) and is connected with the lower welding head driving gear (3), the lower driving motor (5) is arranged on the lower welding head (2), and the cylinder head of the lower welding head lifting cylinder (6) is connected with the lower welding head (2); the upper welding wheel (7) is arranged on the upper welding head (8), an upper welding head driving gear (9) and the upper welding wheel (7) are fixed together and are jointly arranged on the upper welding head (8) to be capable of synchronously rotating, an upper driving pinion (10) is arranged on an upper driving motor (11), and is connected with an upper welding head driving gear (9), an upper driving motor (11) is arranged on an upper welding head (8), a welding wheel grinding wheel (12) is arranged on a bracket (13), a lower grinding wheel (14) is arranged on a first supporting seat (15), the first supporting seat (15) is connected with a cylinder rod of a hydraulic cylinder (16), an upper grinding wheel (17) is arranged on a second supporting seat (18), it is characterized in that the welding wheel of the narrow lap welding machine also comprises a gear protective cover (21) which is fixedly arranged on the lower welding head (2), and is located above the lower horn drive gear (3) and the lower drive pinion (4).

2. The narrow lap welder wheel according to claim 1, characterized in that said gear guard (21) is fixedly arranged on said lower welding head (2) by means of a fixing bolt (22).

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