Driving mechanism of creeping welding machine

Abstract

According to the technical scheme, the driving mechanism of the creeping welding machine is characterized by comprising a driving motor, an upper transmission shaft and a lower transmission shaft are arranged below the driving motor, and a rotating shaft of the driving motor is connected with one end of the upper transmission shaft through a first chain wheel assembly. An upper transmission gear and a lower transmission gear are fixedly arranged on one side of the upper transmission shaft and one side of the lower transmission shaft respectively, a transition shaft is arranged between the upper transmission gear and the lower transmission gear and sleeved with a transition gear, an upper pressing roller shaft and a lower pressing roller shaft are arranged on the rear side of the upper transmission shaft and the rear side of the lower transmission shaft respectively, and a steering shaft is arranged on one side of the upper pressing roller shaft. The steering shaft is connected with the other side of the upper transmission shaft through a second chain wheel assembly, an upper pressing gear and a steering gear are fixedly arranged on the upper pressing roller shaft and the steering shaft respectively, and the other end of the lower transmission roller is connected with one side of the lower pressing roller shaft through a third chain wheel assembly. The utility model has the advantages of simple structure, reduced volume, stable synchronous rotation, increased pressing force and improved welding effect.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, in particular to a driving mechanism of a climbing welding machine. Background Art

[0002] A climbing welder is an automated welding machine primarily used for hot-melt welding of large, continuous flexible materials (such as geomembranes and waterproofing sheets). It is widely used in water conservancy projects, municipal construction, environmental protection, and anti-seepage measures. Its mechanized crawling motion and precise temperature control enable efficient lap welding of materials, ensuring the tightness and strength of the joints. Compared to manual welding, it offers greater stability and standardization. In terms of its operating principle, the climbing welder uses an electric heating element to precisely control the welding temperature within the material's melting point. A mechanical transmission mechanism drives the machine to automatically crawl along the material joint. During this crawling motion, a pressure wheel applies constant pressure to the overlapping portion of the heated and molten material, fusing the two layers together. Upon cooling, a tight, sealed weld is formed. The core components of the crawling welding machine include the drive mechanism (the motor and transmission device that drives the equipment to crawl), the temperature control system (thermocouple sensor and intelligent temperature controller to ensure stable heating temperature), the heating module (usually a heating plate or heating wheel to evenly transfer heat), the pressure wheel assembly (provides welding pressure, commonly a silicone wheel or steel wheel, and the pressure can be adjusted according to the material) and the operation panel (used to set parameters such as welding speed and temperature. Some high-end models are equipped with a display screen to monitor data in real time).

[0003] The drive mechanism of a climbing welding machine generally includes a drive motor and two pressure rollers, each with a pressure wheel mounted on it. Upper and lower transmission shafts are located below the drive motor. The drive motor drives the upper and lower transmission shafts, which in turn drive the two pressure rollers to rotate. This allows the two pieces of welding material to be welded to pass through between the two pressure rollers, offset left and right, and the weld joint to overlap and dislocate. However, the two pressure rollers in the existing climbing welding machine drive mechanism are prone to asynchronous rotation speeds and low pressing force during use. This results in inconsistent feed speeds of the two welding materials, affecting the welding effect at the joint between the two materials and, in turn, the performance of the climbing welding machine. Furthermore, the drive motor in the drive mechanism requires a large number of gears or sprockets to drive the upper and lower transmission shafts, resulting in a complex drive mechanism structure and, to a certain extent, increasing the overall size of the climbing welding machine. Therefore, improvements to the existing drive mechanism of climbing welding machines are highly desirable. Utility Model Content

[0004] The utility model discloses a drive mechanism of the welding machine of climbing in order to solve the prior art's insufficient, has simple structure, reduces the volume of welding machine of climbing to a certain extent, and the synchronous reverse rotation of upper pressure roller axle and lower pressure roller axle can be stabilized, and the surface pressure of welding material is increased, and the welding effect of welding material is greatly improved, and the effect that effectively pulls welding material and feeds is carried out.

[0005] In order to realize the above-mentioned purpose, the utility model provides technical scheme as follows: a drive mechanism of the welding machine of climbing, including with the drive motor of mutual fixed connection of the welding machine of climbing, the drive motor below is provided with with its adaptation transmission shaft and lower transmission axle, the rotary shaft of drive motor and the one end of transmission axle are connected with each other through setting first sprocket assembly, transmission axle is located the upper of lower transmission axle and both are mutually parallel and set, and the one side of transmission axle and lower transmission axle is respectively fixed with transmission gear and lower transmission gear, and the transmission gear and lower transmission gear are provided with the axle between transmission gear and lower transmission gear, and the axle is provided with the transmission gear of fixed connection with it on the axle, and the rear side of transmission axle and lower transmission axle is provided with upper pressure roller axle and lower pressure roller axle respectively, and upper pressure roller axle is located the upper of lower pressure roller axle and both are mutually parallel, and the one side of upper pressure roller axle is provided with the steering axle with it parallel, and the other side of steering axle and transmission axle is connected with each other through setting second sprocket assembly, and upper pressure gear and steering gear are respectively fixed with upper pressure gear and steering gear on upper pressure roller axle and steering axle, and upper pressure gear and steering gear are connected with each other through meshing mode, and the other end of lower transmission roller is connected with the one side of lower pressure roller axle through setting third sprocket assembly.

[0006] Through adopting above-mentioned technical scheme, drive motor is driven transmission axle to carry out synchronous rotation through first sprocket assembly, and transmission axle is driven lower transmission axle to carry out synchronous rotation through transmission gear, transmission gear and lower transmission gear, and transmission axle is driven steering axle to carry out synchronous rotation through second sprocket assembly, and then steering axle is driven upper pressure roller axle to carry out synchronous rotation through steering gear and upper pressure gear, and conversion gear plays the role of conversion rotation direction, and lower transmission axle is driven lower pressure roller axle to carry out synchronous rotation through third sprocket assembly simultaneously, so as to form upper pressure roller axle and lower pressure roller axle synchronous rotation and opposite rotation direction, and the upper and lower surfaces of welding material are pressed and pulled in by the guide pressure wheel on upper pressure roller axle and lower pressure roller axle, and welding material is fed, and also make the welding machine along the welding material laying direction moves, and completes welding material welding work, and the connecting structure between transmission axle and lower transmission axle is simplified, and the overall structure of drive mechanism can be reduced, and then the volume of welding machine of climbing is reduced, and in addition, the force loss of transmission axle transmission to lower transmission axle can be reduced under the condition that the power of drive motor remains unchanged, and then welding material moves better, so as to improve the welding effect of welding material.

[0007] The utility model is further configured as follows: the first sprocket assembly includes a first transmission sprocket and a second transmission sprocket fixedly connected to the driving motor rotating shaft and one end of the upper transmission shaft respectively, and the first transmission sprocket and the second transmission sprocket are connected to each other by setting a first transmission chain.

[0008] By adopting the above technical solution, the first transmission sprocket and the second transmission sprocket are connected by the first transmission chain, and the driving motor rotation shaft drives the upper transmission shaft to rotate through the first transmission sprocket, the second transmission sprocket and the first transmission chain.

[0009] The utility model is further configured as follows: the second sprocket assembly includes a third transmission sprocket and a fifth transmission sprocket fixedly connected to the upper transmission shaft and the steering shaft respectively, and the third transmission sprocket and the fifth transmission sprocket are connected to each other by setting a second transmission chain.

[0010] By adopting the above technical solution, the third transmission sprocket and the fifth transmission sprocket are connected through the second transmission chain, so that the upper transmission shaft drives the steering shaft to rotate through the third transmission sprocket, the fifth transmission sprocket and the second transmission chain.

[0011] The utility model is further configured as follows: the third sprocket assembly includes a fourth transmission sprocket and a sixth transmission sprocket fixedly connected to the lower transmission shaft and the lower pressure roller shaft respectively, and the fourth transmission sprocket and the sixth transmission sprocket are connected to each other by setting a third transmission chain.

[0012] By adopting the above technical solution, the fourth transmission sprocket and the sixth transmission sprocket are connected by the third transmission chain, so that the lower transmission shaft drives the lower pressure roller shaft to rotate through the fourth transmission sprocket, the sixth transmission sprocket and the third transmission chain.

[0013] The utility model is further configured as follows: both ends of the upper transmission shaft and the lower transmission shaft are respectively provided with transmission bearings connected to the climbing welding machine body, both ends of the upper pressure roller shaft and the lower pressure roller shaft are also respectively provided with pressure roller bearings connected to the climbing welding machine body, and the transition shaft and the steering shaft are also provided with rotating shaft bearings connected to the climbing welding machine body.

[0014] By adopting the above technical solution, the transmission bearing facilitates the rotation of the upper transmission shaft and the lower transmission shaft, the pressure roller bearing facilitates the rotation of the upper pressure roller shaft and the lower pressure roller shaft, and the rotating shaft bearing facilitates the rotation of the transition shaft and the steering shaft.

[0015] The utility model further sets up: the upper and lower two sides of the over gear are connected with the upper transmission gear and lower transmission gear respectively, and the center points of the over gear, the upper transmission gear and the lower transmission gear are on the same straight line.

[0016] By adopting the above technical scheme, the first pressure wheel through hole and the second pressure wheel through hole facilitate heat dissipation of the guide pressure wheel, thereby preventing the guide pressure wheel from overheating and increasing the internal temperature of the welding machine to damage electronic components, and the guide pressure pattern increases the friction between the guide pressure wheel and the welding material surface, so that the guide pressure wheel better pulls the welding material for feeding.

[0017] The utility model further sets up: the upper and lower two sides of the over gear are connected with the upper transmission gear and lower transmission gear respectively, and the center points of the over gear, the upper transmission gear and the lower transmission gear are on the same straight line.

[0018] By adopting the above technical scheme, the center points of the over gear, the long transmission gear and the lower transmission gear are on the same straight line, which facilitates force transmission from the upper transmission gear to the lower transmission gear, prevents unnecessary loss in the transmission process, thereby ensuring that the force of the guide pressure wheel on the upper pressure roller shaft and the lower pressure roller shaft is pressed on the welding material surface, and only one over gear is used to synchronously drive the upper transmission shaft and the lower transmission shaft, which simplifies the internal structure and reduces the size of the driving mechanism to a certain extent.

[0019] In summary, the utility model has the following beneficial effects:

[0020] 1, drive motor through first sprocket assembly drive upper transmission shaft synchronous rotation, upper transmission shaft is driven by the upper transmission gear, over gear and lower transmission gear lower transmission shaft synchronous rotation, and upper transmission shaft is driven by the second sprocket assembly synchronous rotation steering shaft, and then steering shaft is driven by the steering gear and the upper pressure gear synchronous rotation upper pressure roller shaft, and the conversion gear plays the role of conversion rotation direction, and the lower transmission shaft is driven by the third sprocket assembly synchronous rotation lower pressure roller shaft, thereby forming the upper pressure roller shaft and the lower pressure roller shaft synchronous rotation and the rotation direction is opposite, and the guide pressure wheel on the upper pressure roller shaft and the lower pressure roller shaft is pressed on the upper and lower surfaces of the welding material and pulls the welding material for feeding, so that the welding machine moves along the welding material laying direction, completes the welding work of the welding material, and the connection structure between the upper transmission shaft and the lower transmission shaft is simplified, the overall structure of the driving mechanism can be reduced, and the size of the welding machine is reduced.

[0021] 2、By adopting the technical scheme, the first pressure wheel through hole and the second pressure wheel through hole facilitate heat dissipation of the guide pressure wheel, thereby preventing the guide pressure wheel from being overheated to increase the internal temperature of the welding machine and damage electronic components, and the guide pressure wheel increases the friction between the guide pressure wheel and the surface of the welding material, so that the guide pressure wheel better drags the welding material to feed. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic view of the whole welding machine.

[0023] Figure 2 It is a structural schematic view of the driving mechanism.

[0024] Figure 3 It is a right view of the utility model.

[0025] Figure 4 It is a left view of the utility model.

[0026] Figure 5 It is a rear view of the utility model.

[0027] Figure 6 It is Figure 5 a sectional view at A-A.

[0028] Figure 7 It is Figure 5 a sectional view at B-B.

[0029] Fig. 1, driving motor; 11, first transmission sprocket; 12, first transmission chain; 2, upper transmission shaft; 21, second transmission sprocket; 22, upper transmission gear; 23, third transmission sprocket; 24, second transmission chain; 25, transmission bearing; 3, lower transmission shaft; 31, lower transmission gear; 32, fourth transmission sprocket; 33, third transmission chain; 4, overrunning shaft; 41, overrunning gear; 42, rotating shaft bearing; 5, upper compression roller shaft; 51, upper compression gear; 52, compression roller bearing; 6, lower compression roller shaft; 61, sixth transmission sprocket; 7, steering shaft; 71, fifth transmission sprocket; 72, steering gear; 8, guide pressure wheel; 81, first pressure wheel through hole; 82, second pressure wheel through hole; 83, guide pressure pattern. DETAILED DESCRIPTION

[0030] The utility model will be further explained in detail in combination with the drawings.

[0031] The embodiment discloses a driving mechanism of a welding machine, like Figures 1 to 7As shown, it includes a driving motor 1 and an upper transmission shaft 2 and a lower transmission shaft 3 horizontally arranged below the driving motor 1. The driving motor 1 is fixedly connected to the climbing welding machine body. The driving motor 1 adopts a planetary reduction motor. The planetary reduction motor has the characteristics of large torque, so it can better press and drive the welding material and improve the welding effect. The upper transmission shaft 2 is located above the lower transmission shaft 3 and the two are arranged parallel to each other. The rotating shaft of the driving motor 1 and one end of the upper transmission shaft 2 are respectively fixedly sleeved with a first transmission sprocket 11 and a second transmission sprocket 21. The first transmission sprocket 11 and the second transmission sprocket 21 are connected to each other by setting a first transmission chain 12. The driving motor 1 drives the upper transmission shaft 2 through the first transmission sprocket 11, the first transmission chain 12 and the second transmission sprocket 21. The upper and lower transmission gears 22 and 31 are meshed with each other on the upper and lower sides of the transition gear 41, and the center points of the transition gear 41, the upper transmission gear 22 and the lower transmission gear 31 are in the same straight line. The center points of the transition gear 41, the long transmission gear and the lower transmission gear are in the same straight line, which can facilitate the transmission of the force received by the upper transmission gear 22 to the lower transmission gear 31, prevent unnecessary loss in the transmission process, and ensure the rotational force of the upper transmission shaft 2 and the lower transmission shaft 3. When rotating, the lower transmission gear 31 is driven to rotate synchronously through the transition gear 41, and then the upper transmission shaft 2 and the lower transmission shaft 3 rotate synchronously and in the same direction. The other sides of the upper transmission shaft 2 and the lower transmission shaft 3 are respectively fixed with a third transmission sprocket 23 and a fourth transmission sprocket 32. The rear sides of the upper transmission shaft 2 and the lower transmission shaft 3 are respectively provided with an upper pressure roller shaft 5 and a lower pressure roller shaft 6. The upper pressure roller shaft 5 is located above the lower pressure roller shaft 6 and the two are parallel to each other. The upper pressure roller shaft 5 is also provided with a steering shaft 7 parallel to the third transmission sprocket 23 on the side thereof. A fifth transmission sprocket 71 adapted to the third transmission sprocket 23 is fixedly provided on the steering shaft 7. The third transmission sprocket 23 and the fifth transmission sprocket 71 are connected to each other by setting a second transmission chain 24. The roller shaft 5 and the steering shaft 7 are respectively fixedly provided with an upper pressure gear 51 and a steering gear 72, and the upper pressure gear 51 and the steering gear 72 are connected to each other by meshing. The upper transmission shaft 2 drives the steering shaft 7 to rotate through the third transmission sprocket 23, the second transmission chain 24 and the fifth transmission sprocket 71, and then the steering shaft 7 drives the upper pressure roller shaft 5 to rotate synchronously through the steering gear 72 and the upper pressure gear 51. A sixth transmission sprocket 61 adapted to the fourth transmission sprocket 32 ​​is fixedly provided on one side of the lower pressure roller shaft 6, and the fourth transmission sprocket 32 ​​and the sixth transmission sprocket 61 are connected to each other by setting a third transmission chain 33. The lower transmission shaft 3 drives the lower pressure roller shaft 6 to rotate synchronously through the fourth transmission sprocket 32, the third transmission chain 33 and the sixth moving sprocket.When the upper transmission shaft 2 and the lower transmission shaft 3 drive the upper pressure roller 5 and the lower pressure roller 6 to rotate synchronously, the steering shaft 7 and the steering gear 72 and the fifth transmission sprocket 71 on the steering shaft 7 make the upper pressure roller 5 and the lower pressure roller 6 rotate synchronously in opposite directions, thereby facilitating the feeding of welding materials and allowing the climbing welding machine to move along the laying direction of welding materials.

[0032] The two ends of the upper transmission shaft 2 and the lower transmission shaft 3 are respectively provided with transmission bearings 25 connected to the climbing welding machine body, and the two ends of the upper pressure roller shaft 5 and the lower pressure roller shaft 6 are also respectively provided with pressure roller bearings 52 connected to the climbing welding machine body. The transition shaft 4 and the steering shaft 7 are also provided with rotating shaft bearings 42 connected to the climbing welding machine body.

[0033] The upper and lower pressing rollers 5 and 6 are both sleeved with corresponding guide pressing wheels 8, and the number of guide pressing wheels 8 is equal and set to at least two, the guide pressing wheels 8 are made of metal material, and the guide pressing wheels 8 are provided with a plurality of first pressing wheel through holes 81 and a plurality of second pressing wheel through holes 82, the first pressing wheel through holes 81 and the second pressing wheel through holes 82 are evenly distributed along the circumferential direction of the guide pressing wheel 8, and the first pressing wheel through holes 81 and the second pressing wheel through holes 82 are parallel to the mid-vertical line of the guide pressing wheel 8, and the first pressing wheel through holes 81 and the second pressing wheel through holes 82 are parallel to each other. The pressure wheel through hole 81 and the second pressure wheel through hole 82 play a heat dissipation role to prevent the guide pressure wheel 8 from overheating and increasing the internal temperature of the climbing welding machine. The surface of the guide pressure wheel 8 is also provided with a guide embossing 83 that is adapted to the surface of the welding material. The guide embossing 83 can increase the friction between the guide pressure wheel 8 and the contact surface of the welding material, ensuring that when the upper pressure roller shaft 5 and the lower pressure roller shaft 6 rotate and drive the guide pressure wheel 8 to rotate, the welding material can be pulled into the climbing welding machine, thereby enabling the climbing welding machine to move along the laying direction of the welding material when welding the welding material.

[0034] The working process is as follows: when the driving motor 1 rotates forward, the rotating shaft of the driving motor 1 drives the upper transmission shaft 2 to rotate forward synchronously through the first transmission sprocket 11, the first transmission chain 12 and the second transmission sprocket 21, and the upper transmission shaft 2 drives the lower transmission shaft 3 to rotate forward synchronously through the upper transmission gear 22, the transition gear 41 and the lower transmission gear 31, and then the upper transmission shaft 2 drives the steering shaft 7 to rotate forward synchronously through the third transmission sprocket 23, the second transmission chain 24 and the fifth transmission sprocket 71, and then the steering shaft 7 rotates forward synchronously through the rotation of the steering shaft 7. The reverse gear 72 and the upper pressure gear 51 drive the upper pressure roller 5 to rotate synchronously in the opposite direction. At the same time, the lower transmission shaft 3 drives the lower pressure roller 6 to rotate synchronously in the forward direction through the fourth transmission sprocket 32, the third transmission chain 33 and the sixth moving sprocket. The upper pressure roller 5 and the lower pressure roller 6 rotate synchronously and in opposite directions. Therefore, the guide pressure wheels 8 on the upper pressure roller 5 and the lower pressure roller 6 press the upper and lower surfaces of the welding material and pull the welding material to continuously feed for welding, which also makes the climbing welding machine move along the laying direction of the welding material; otherwise, the climbing welding machine retreats and moves backward.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the design concept of the present invention should be included in the scope of protection of the present invention.

Claims

1. A driving mechanism of a climbing welding machine, comprising a driving motor (1) fixedly connected to a climbing welding machine body, an upper transmission shaft (2) and a lower transmission shaft (3) adapted thereto being provided below the driving motor (1), characterized in that: The rotating shaft of the driving motor (1) and one end of the upper transmission shaft (2) are connected to each other by arranging a first sprocket assembly. The upper transmission shaft (2) is located above the lower transmission shaft (3) and the two are arranged parallel to each other. An upper transmission gear (22) and a lower transmission gear (31) are fixedly sleeved on one side of the upper transmission shaft (2) and the lower transmission shaft (3). A transition shaft (4) is arranged between the upper transmission gear (22) and the lower transmission gear (31). A transition gear (41) fixedly connected to the transition shaft (4) is sleeved on the transition shaft (4). Upper pressure roller shafts are respectively arranged on the rear sides of the upper transmission shaft (2) and the lower transmission shaft (3). (5) and a lower pressure roller shaft (6), the upper pressure roller shaft (5) is located above the lower pressure roller shaft (6) and the two are parallel to each other, a steering shaft (7) is provided on one side of the upper pressure roller shaft (5) and is parallel to the upper pressure roller shaft (5), the steering shaft (7) and the other side of the upper transmission shaft (2) are connected to each other by providing a second sprocket assembly, an upper pressure gear (51) and a steering gear (72) are fixedly provided on the upper pressure roller shaft (5) and the steering shaft (7), respectively, and the upper pressure gear (51) and the steering gear (72) are connected to each other by meshing, and the other end of the lower transmission roller is connected to one side of the lower pressure roller shaft (6) by providing a third sprocket assembly.

2. The driving mechanism of a climbing welding machine according to claim 1, characterized in that: The first sprocket assembly comprises a first transmission sprocket (11) and a second transmission sprocket (21) respectively fixedly connected to the rotating shaft of the drive motor (1) and one end of the upper transmission shaft (2); the first transmission sprocket (11) and the second transmission sprocket (21) are connected to each other by a first transmission chain (12).

3. The driving mechanism of a climbing welding machine according to claim 2, characterized in that: The second sprocket assembly comprises a third transmission sprocket (23) and a fifth transmission sprocket (71) respectively fixedly connected to the upper transmission shaft (2) and the steering shaft (7); the third transmission sprocket (23) and the fifth transmission sprocket (71) are connected to each other via a second transmission chain (24).

4. The driving mechanism of a climbing welding machine according to claim 3, characterized in that: The third sprocket assembly comprises a fourth transmission sprocket (32) and a sixth transmission sprocket (61) which are fixedly connected to the lower transmission shaft (3) and the lower pressure roller shaft (6), respectively, and the fourth transmission sprocket (32) and the sixth transmission sprocket (61) are connected to each other by arranging a third transmission chain (33).

5. The driving mechanism of a climbing welding machine according to claim 2, characterized in that: The two ends of the upper transmission shaft (2) and the lower transmission shaft (3) are respectively provided with transmission bearings (25) connected to the climbing welding machine body, the two ends of the upper pressure roller shaft (5) and the lower pressure roller shaft (6) are also respectively provided with pressure roller bearings (52) connected to the climbing welding machine body, and the transition shaft (4) and the steering shaft (7) are also provided with rotating shaft bearings (42) connected to the climbing welding machine body.

6. The driving mechanism of a climbing welding machine according to claim 1, characterized in that: The upper pressing roller shaft (5) and the lower pressing roller shaft (6) are both sleeved with guide pressing wheels (8), and the number of guide pressing wheels (8) is equal and set to at least two, and the guide pressing wheels (8) are provided with a plurality of first pressing wheel through holes (81) and a plurality of second pressing wheel through holes (82), the first pressing wheel through holes (81) and the second pressing wheel through holes (82) are evenly distributed along the circumferential direction of the guide pressing wheel (8), and the first pressing wheel through holes (81) and the second pressing wheel through holes (82) are parallel to the mid-vertical line of the guide pressing wheel (8), and the surface of the guide pressing wheel (8) is also provided with a guide embossing (83) adapted to the surface of the welding material.

7. A driving mechanism for a climbing welding machine according to any one of claims 1 to 6, characterized in that: The upper and lower sides of the transition gear (41) are respectively meshed with the upper transmission gear (22) and the lower transmission gear (31), and the center points of the transition gear (41), the upper transmission gear (22) and the lower transmission gear (31) are on the same straight line.

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