Automatic welding trolley walking device with clutch

Abstract

The utility model discloses a kind of automatic welding trolley walking devices with clutch, for being installed on annular welding track of coaxial sleeve being arranged on pipeline, including bedplate, the bedplate is equipped with driving wheel, driven wheel, at least two press wheels and motor;The driving wheel, the driven wheel, each The press wheel can be rotatably arranged, and the driving wheel with The driven wheel with The outer wall of welding track is contacted, two The press wheel is contacted with the inner wall of two sides of welding track respectively;The output end of the motor is connected with driving gear, the driving end of the driving wheel is connected with driven gear, the driven gear with The driving gear is connected by transmission between the clutch mechanism, the clutch mechanism is used to drive the driving gear with The driven gear engages or disengages engagement.The utility model satisfies the demand of fast recovery to initial position after pipeline welding is completed, reduces non-welding state time, improves welding efficiency.

Description

Technical Field

[0001] This utility model relates to the technical field of pipeline welding robots, and in particular to an automatic welding trolley walking device with a clutch. Background Technology

[0002] In the field of pipe welding robots, welding methods are mainly divided into rail-based welding and railless welding. In rail-based welding, the track is stationary relative to the pipe to be welded, while the robot body moves relative to the track to complete the welding. However, in actual welding processes, due to limitations such as communication cables, it is impossible to continuously rotate in one direction for welding. Furthermore, according to pipe welding process requirements, the robot must return to the starting position after completing one revolution of welding. The primary task of existing automatic welding trolley walking mechanisms is to ensure welding speed, resulting in a relatively slow maximum travel speed on the track. This makes it time-consuming for the pipe welding robot body to return to its initial position, with a large proportion of time spent in non-welding state, severely impacting welding efficiency.

[0003] While some gas-shielded welding trolleys on the market currently possess clutch functionality in their travel mechanisms, they primarily control the meshing relationship between gears via eccentric cams. This approach suffers from drawbacks such as a large overall structure, complex manufacturing, and high assembly difficulty. However, the automatic welding trolley discussed in this paper operates in space-constrained environments, placing stringent requirements on the size of its travel mechanism's clutch design. It needs to be compact, easy to install and maintain, highly efficient, stable, and convenient. Therefore, it is necessary to explore a small, easy-to-install, easy-to-maintain, efficient, stable, and convenient travel mechanism to meet the actual needs of pipeline welding, reduce non-welding time, improve welding efficiency, and lower operating costs. Utility Model Content

[0004] In view of the above-mentioned problems of existing walking devices, the present invention aims to provide an automatic welding trolley walking device with clutch.

[0005] The specific technical solution is as follows: An automatic welding trolley traveling device with a clutch is used to be installed on a ring welding track coaxially sleeved on a pipe, including a base, on which a driving wheel, a driven wheel, at least two pressure rollers and a motor are installed; The driving wheel, the driven wheel, and each of the pressure wheels are rotatably arranged, and the driving wheel and the driven wheel are in contact with the outer wall of the welding track, while the two pressure wheels are in contact with the inner walls of both sides of the welding track, respectively. The output end of the motor is connected to a drive gear, and the drive end of the drive wheel is connected to a driven gear. The driven gear and the drive gear are connected by a clutch mechanism, which is used to drive the drive gear to engage or disengage with the driven gear. The clutch mechanism includes: A sliding sleeve is mounted on the outside of the drive end of the driving wheel via a key structure. The driven gear is fixedly sleeved on the outside of the sliding sleeve. A limiting groove is provided around the outer wall of one end of the sliding sleeve. A knob plunger is threadedly mounted on the base, with one end of the knob plunger located in the limiting groove and forming a circumferential sliding fit with the limiting groove.

[0006] As a further improvement and optimization of this solution, the clutch mechanism also includes: A spring, which is sleeved outside the drive end of the driving wheel and located between the driven gear and the base, is used to push the driven gear outward; A hand-tightening disc wheel has a limiting part at one end, which is threaded onto the machine base and makes limiting contact with the outer side of the sliding sleeve.

[0007] As a further improvement and optimization of this solution, rubber wheels are fitted on both sides of the driving wheel and the driven wheel, and the rubber wheels are in contact with the outer wall of the welding track.

[0008] As a further improvement and optimization of this solution, a traveling gear is sleeved in the middle of the drive wheel, and an external gear ring is provided on the outside of the welded track, with the traveling gear meshing with the external gear ring.

[0009] As a further improvement and optimization of this solution, the two pressure rollers are located between the driving roller and the driven roller.

[0010] As a further improvement and optimization of this solution, an adjustment mechanism is provided between each pressure roller and the machine base for adjusting the pressure roller upwards or downwards.

[0011] As a further improvement and optimization of this solution, each of the aforementioned adjustment mechanisms includes: An adjusting rod, one end of which is rotatably mounted on the machine base and located on the side of the welding track, and the inner side of the other end of the adjusting rod rotates the pressure roller; A drive assembly is connected to the adjusting rod for rotating the adjusting rod around one end of itself for adjustment.

[0012] As a further improvement and optimization of this solution, the driving component includes: A telescopic rod, which is slidably mounted on the machine base, and one end of the telescopic rod is hinged to the adjusting rod; An adjustment handle is threaded onto the other end of the telescopic rod and abuts against the limiting position of the base.

[0013] As a further improvement and optimization of this solution, the telescopic rod is set at an angle.

[0014] As a further improvement and optimization of this solution, both the driving gear and the driven gear are spur gear structures.

[0015] The positive effects of the above technical solution compared with the existing technology are: (1) In this utility model, by setting up a base, driving wheel, driven wheel, pressure wheel and motor, the walking device is installed and operated on the welding track. The design of the clutch mechanism allows the driving gear and the driven gear to mesh or disengage. In the meshing state, the motor can drive the automatic welding trolley to walk along the track; in the disengaged state, the trolley can be moved quickly by external action to meet the requirement of quickly returning to the initial position after the pipeline welding is completed, reduce the non-welding state time and improve welding efficiency.

[0016] (2) The clutch mechanism in this utility model includes a sliding sleeve and a knob plunger. When one end of the knob plunger is in the limiting groove, it will be limited to the position of the driven gear. At this time, the driven gear and the driving gear are in a meshing state. When the knob plunger is rotated and the knob plunger is disengaged from the limiting groove, the sliding sleeve can slide axially under the action of the key structure, thereby disengaging the driven gear from the driving gear. The overall structure is small, easy to process, and easy to assemble.

[0017] (3) In this utility model, the two pressure rollers are set between the driving roller and the driven roller, which can distribute the pressure more reasonably, make the walking device more firmly fixed on the welded track, enhance the overall stability of the device, and reduce the shaking and deviation during operation.

[0018] (4) The adjustment mechanism in this utility model allows the distance between the pressure roller and the machine base to be adjusted according to the actual situation, thereby adapting to welding tracks of different specifications, improving the versatility and adaptability of the walking device, and meeting diverse welding needs. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the working state of an automatic welding trolley traveling device with a clutch according to this utility model; Figure 2 This is a schematic diagram of the structure of an automatic welding trolley traveling device with a clutch according to the present invention; Figure 3 This is a schematic diagram of the clutch mechanism of an automatic welding trolley traveling device with a clutch in the disengaged state according to the present invention; Figure 4 This is a schematic diagram of the adjustment mechanism of an automatic welding trolley traveling device with a clutch according to the present invention; In the attached diagram: 1. Pipe; 2. Welding rail; 3. Machine base; 4. Drive wheel; 5. Driven wheel; 6. Motor; 7. Drive gear; 8. Driven gear; 9. Clutch mechanism; 10. Pressure roller; 20. Adjustment mechanism; 21. External gear ring; 41. Travel gear; 91. Sliding sleeve; 92. Spring; 93. Hand-operated disc wheel; 94. Knob plunger; 911. Limiting groove; 201. Adjusting rod; 202. Telescopic rod; 203. Adjusting handle. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Figure 1 This is a schematic diagram of the working state of an automatic welding trolley traveling device with a clutch according to this utility model; Figure 2 This is a schematic diagram of the structure of an automatic welding trolley traveling device with a clutch according to the present invention; Figure 3 This is a schematic diagram of the clutch mechanism of an automatic welding trolley traveling device with a clutch in the disengaged state according to the present invention; Figure 4 This is a schematic diagram of the adjustment mechanism of an automatic welding trolley traveling device with a clutch according to this utility model. Figure 1-4The diagram illustrates a preferred embodiment of an automatic welding trolley with a clutch, mounted on a coaxially fitted annular welding track 2 on a pipe 1. The trolley includes a base 3, on which are mounted a drive wheel 4, a driven wheel 5, at least two pressure rollers 10, and a motor 6. The drive wheel 4, driven wheel 5, and each pressure roller 10 are rotatably mounted. The drive wheel 4 and driven wheel 5 contact the outer wall of the welding track 2, while the two pressure rollers 10 contact the inner walls of both sides of the welding track 2. A drive gear 7 is connected to the output end of the motor 6, and a driven gear 8 is connected to the drive end of the drive wheel 4. The driven gear 8 and the driving gear 7 are connected by a clutch mechanism 9. The clutch mechanism 9 is used to drive the driving gear 7 to engage or disengage with the driven gear 8. The clutch mechanism 9 includes a sliding sleeve 91 and a knob plunger 94. The sliding sleeve 91 is installed on the outside of the driving end of the driving wheel 4 through a key structure. The driven gear 8 is fixedly sleeved on the outside of the sliding sleeve 91. A limiting groove 911 is provided on the outer wall of one end of the sliding sleeve 91. The knob plunger 94 is threaded on the base. One end of the knob plunger 94 is located in the limiting groove 911 and forms a circumferential sliding fit with the limiting groove 911.

[0024] In this application, by setting up a base 3, a driving wheel 4, a driven wheel 5, a pressure wheel 10, and a motor 6, the walking device is installed and operated on the welding track 2. The design of the clutch mechanism 9 allows the driving gear 7 and the driven gear 8 to mesh or disengage. In the meshing state, the motor 6 can drive the automatic welding trolley to walk along the track; in the disengaged state, the trolley can be moved quickly by external action to meet the requirement of quickly returning to the initial position after the pipe 1 is welded, reduce the non-welding state time, and improve welding efficiency.

[0025] In this application, the clutch mechanism 9 includes a sliding sleeve 91 and a knob plunger 94. When one end of the knob plunger 94 is located in the limiting groove 911, it will be limited to the position of the driven gear 8. At this time, the driven gear 8 and the drive gear 7 are in a meshing state. When the knob plunger 94 is rotated and the knob plunger 94 is disengaged from the limiting groove 911, the sliding sleeve 91 can slide axially under the action of the key structure, thereby disengaging the driven gear 8 from the drive gear 7. The overall structure is small, easy to process, and easy to assemble.

[0026] Furthermore, as a preferred embodiment, the clutch mechanism 9 also includes a spring 92 and a hand-cranked disc wheel 93. The spring 92 is sleeved on the outside of the drive end of the drive wheel 4 and is located between the driven gear 8 and the base 3, for pushing the driven gear 8 outward. One end of the hand-cranked disc wheel 93 forms a limiting part (not shown in the figure), which is threaded onto the base and makes limiting contact with the outer side of the sliding sleeve 91.

[0027] In this application, when the knob plunger 94 is turned to disengage from the limiting groove 911, the handwheel 93 can be turned outward again, and under the joint action of the spring 92, the driven gear 8 is pushed outward so that the drive gear 7 disengages from the driven gear 8. The handwheel 93 is in limiting contact with the outer side of the sliding sleeve 91 through the limiting part, which facilitates manual operation to control the movement of the sliding sleeve 91 and realizes the switching of the clutch state. The operation is convenient and reliable.

[0028] Furthermore, as a preferred embodiment, rubber wheels are fitted on both sides of the driving wheel 4 and the driven wheel 5, and the rubber wheels contact the outer wall of the welding track 2. The rubber wheels increase the friction between the driving wheel 4, the driven wheel 5 and the welding track 2, providing good support and effectively preventing slippage under conditions such as climbing slopes, ensuring stable operation of the traveling device on the track and improving the stability of the welding process.

[0029] Furthermore, as a preferred embodiment, a traveling gear 41 is fitted onto the middle of the drive wheel 4, and an external gear ring 21 is provided on the outside of the welding track 2. The traveling gear 41 meshes with the external gear ring 21. This transmission method allows for more precise control of the traveling speed and position of the automatic welding carriage, improving welding accuracy and quality, while also making the traveling process smoother and more reliable.

[0030] Furthermore, as a preferred embodiment, the two pressure rollers 10 are located between the driving wheel 4 and the driven wheel 5. Positioning the two pressure rollers 10 between the driving wheel 4 and the driven wheel 5 allows for a more reasonable distribution of pressure, making the traveling device more securely fixed on the welded track 2, enhancing the overall stability of the device, and reducing shaking and deviation during operation.

[0031] Furthermore, as a preferred embodiment, each pressure roller 10 is provided with an adjustment mechanism 20 between itself and the base 3, for adjusting the pressure roller 10 upwards or downwards. The adjustment mechanism 20 allows the distance between the pressure roller 10 and the base 3 to be adjusted according to actual conditions, thereby adapting to welding rails 2 of different specifications, improving the versatility and adaptability of the traveling device, and meeting diverse welding needs.

[0032] Furthermore, in a preferred embodiment, each adjustment mechanism 20 includes an adjustment rod 201 and a drive assembly. One end of the adjustment rod 201 is rotatably mounted on the base and located on the side of the welded track 2. The inner side of the other end of the adjustment rod 201 rotates the pressure roller 10. The drive assembly is connected to the adjustment rod 201 for adjusting the rotation of the adjustment rod 201 around one end. The cooperation between the adjustment rod 201 and the drive assembly enables precise adjustment of the position of the pressure roller 10. By driving the adjustment rod 201 to rotate around one end through the drive assembly, the position of the pressure roller 10 is changed. This adjustment method is flexible and convenient, and can quickly and accurately adjust the contact state between the pressure roller 10 and the track, ensuring the stable fixation of the traveling device.

[0033] Furthermore, in a preferred embodiment, the drive assembly includes a telescopic rod 202 and an adjusting handle 203. The telescopic rod 202 is slidably mounted on the machine base 3, and one end of the telescopic rod 202 is hinged to the adjusting rod 201. The adjusting handle 203 is threaded onto the other end of the telescopic rod 202 and is in limiting contact with the machine base 3. The drive assembly composed of the telescopic rod 202 and the adjusting handle 203 has a simple structure and is easy to operate. By rotating the adjusting handle 203, the telescopic rod 202 can slide on the machine base 3, thereby driving the adjusting rod 201 to rotate, realizing the adjustment of the position of the pressure roller 10. The limiting contact design between the adjusting handle 203 and the machine base 3 ensures the stability and accuracy of the adjustment.

[0034] Furthermore, as a preferred embodiment, the telescopic rod 202 is inclined.

[0035] Furthermore, as a preferred embodiment, both the driving gear 7 and the driven gear 8 are spur gears. Spur gears offer advantages such as high transmission efficiency, simple structure, and ease of manufacturing. Using spur gears as the driving gear 7 and driven gear 8 ensures smooth and accurate transmission while reducing manufacturing costs and improving the reliability and economy of the device.

[0036] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An automatic welding trolley traveling device with a clutch, used for mounting on a circular welding track coaxially sleeved on a pipe, characterized in that, The machine includes a base on which a drive wheel, a driven wheel, at least two pressure rollers, and a motor are mounted. The driving wheel, the driven wheel, and each of the pressure wheels are rotatably arranged, and the driving wheel and the driven wheel are in contact with the outer wall of the welding track, while the two pressure wheels are in contact with the inner walls of both sides of the welding track, respectively. The output end of the motor is connected to a drive gear, and the drive end of the drive wheel is connected to a driven gear. The driven gear and the drive gear are connected by a clutch mechanism, which is used to drive the drive gear to engage or disengage with the driven gear. The clutch mechanism includes: A sliding sleeve is mounted on the outside of the drive end of the driving wheel via a key structure. The driven gear is fixedly sleeved on the outside of the sliding sleeve. A limiting groove is provided around the outer wall of one end of the sliding sleeve. A knob plunger is threadedly mounted on the base, with one end of the knob plunger located in the limiting groove and forming a circumferential sliding fit with the limiting groove.

2. The automatic welding trolley traveling device with clutch according to claim 1, characterized in that, The clutch mechanism further includes: A spring, which is sleeved outside the drive end of the driving wheel and located between the driven gear and the base, is used to push the driven gear outward; A hand-tightening disc wheel has a limiting part at one end, which is threaded onto the machine base and makes limiting contact with the outer side of the sliding sleeve.

3. The automatic welding trolley traveling device with clutch according to claim 1, characterized in that, Both sides of the driving wheel and the driven wheel are fitted with rubber wheels, which are in contact with the outer wall of the welding track.

4. The automatic welding trolley traveling device with clutch according to claim 2, characterized in that, A traveling gear is fitted in the middle of the drive wheel, and an external gear ring is provided on the outside of the welded track. The traveling gear meshes with the external gear ring.

5. The automatic welding trolley traveling device with clutch according to claim 1, characterized in that, The two pressure rollers are located between the driving roller and the driven roller.

6. The automatic welding trolley traveling device with clutch according to claim 5, characterized in that, Each of the pressure rollers is provided with an adjustment mechanism between itself and the machine base, for adjusting the pressure rollers upwards or downwards.

7. The automatic welding trolley traveling device with clutch according to claim 6, characterized in that, Each of the aforementioned adjustment mechanisms includes: An adjusting rod, one end of which is rotatably mounted on the machine base and located on the side of the welding track, and the inner side of the other end of the adjusting rod rotates the pressure roller; A drive assembly is connected to the adjusting rod for rotating the adjusting rod around one end of itself for adjustment.

8. The automatic welding trolley traveling device with clutch according to claim 7, characterized in that, The driving component includes: A telescopic rod, which is slidably mounted on the machine base, and one end of the telescopic rod is hinged to the adjusting rod; An adjustment handle is threaded onto the other end of the telescopic rod and abuts against the limiting position of the base.

9. The automatic welding trolley traveling device with clutch according to claim 8, characterized in that, The telescopic rod is installed at an angle.

10. The automatic welding trolley traveling device with clutch according to claim 1, characterized in that, Both the driving gear and the driven gear are spur gears.

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