Boiler postweld heat treatment trolley

Abstract

The utility model discloses a boiler postweld heat treatment trolley which comprises a trolley body, supports, a driving motor, a transmission mechanism, a mounting frame, a mounting plate and a heating belt, the two sides of the trolley body are each provided with one support in the longitudinal direction, and the driving motor is arranged on the rear portion of the trolley body and is in transmission connection with the transmission mechanism arranged on the supports. The mounting frame is arranged on the front side of the support and is in transmission connection with the transmission mechanism, the mounting plates are arranged on the front side of the mounting frame at intervals, the two mounting plates are connected through the multiple supporting rods, the heating belt is arranged on the front sides of the multiple supporting rods, and a power interface is formed in the back of the mounting frame. And the heating tape is connected with the power interface. The mounting plate and the heating belt are driven by the driving motor and the transmission mechanism to move up and down along the support, so that the height of the heating belt is adjusted, the outer wall of the boiler is heated through the heating belt so as to adapt to boilers of different sizes, the heating belt can be replaced according to different requirements, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment, in particular to a post-welding heat treatment trolley for boilers. Background Art

[0002] The main purposes of post-welding heat treatment of boilers are to relax welding residual stress, stabilize the shape and size of the structure, improve the performance of the base material and welded joints, enhance the ability to resist stress corrosion, and further release harmful gases, especially hydrogen, in the weld metal to prevent the occurrence of delayed cracks.

[0003] At present, the post-welding heat treatment of boilers is mainly carried out by using heating tapes. During the treatment, the heating tapes need to be wound or attached to the outer wall of the boiler. However, this method has the following two problems:

[0004] First, the process of winding or attaching the heating tapes takes a long time, and once fixed, it is difficult to change the position of the heating tapes easily. If the heating position needs to be adjusted, the heating tapes can only be removed and wound or attached to a new position, which is very time-consuming. Therefore, the use efficiency is low.

[0005] Second, the density of the electric heating tapes affects the heating effect and service life. Too high or too low winding density will affect the uniformity and stability of heating. Generally speaking, the winding or attaching density should be adjusted according to the use conditions and actual requirements. Therefore, this has relatively high requirements for the winding or attaching skills and experience, and the operation threshold is high, making it impossible for ordinary personnel to operate.

[0006] In summary, the existing post-welding heat treatment methods for boilers need to be improved. Content of the Utility Model

[0007] To solve the above technical problems, the utility model discloses a post-welding heat treatment trolley for boilers, which includes a vehicle body, brackets, a driving motor, a transmission mechanism, a mounting frame, a mounting plate, and a heating tape. On both sides of the vehicle body, a bracket is longitudinally provided respectively. The driving motor is arranged at the rear of the vehicle body and is in transmission connection with the transmission mechanism arranged on the brackets. The mounting frame is arranged in front of the brackets and is in transmission connection with the transmission mechanism. The mounting plates are arranged at intervals in front of the mounting frame, and are connected by a plurality of support rods between the two mounting plates. The heating tape is arranged in front of the plurality of support rods. A power supply interface is provided on the back of the mounting frame, and the heating tape is connected to the power supply interface.

[0008] Further, the transmission mechanism includes a pulley, a belt and a connecting block. Grooves are provided on the outer sides of both brackets. A pulley is provided on each of the upper and lower sides of the groove. The drive motor is in transmission connection with the lower pulley. The belt is arranged around the upper and lower pulleys. A sliding groove is provided on the side wall of the groove close to the mounting frame. The connecting block passes through the sliding groove and is connected to the mounting frame.

[0009] Further, the connecting block is connected to the belt and the mounting frame by bolts.

[0010] Further, a suspension opening is provided on the front side of the mounting frame, and an inverted L-shaped hook is provided on the back side of the mounting plate. The inverted L-shaped hook is arranged in the suspension opening.

[0011] Further, an extended support arm is provided on the front side of the vehicle body.

[0012] Further, a first caster is provided on the rear side of the vehicle body, and a second caster is provided on the front side of the support arm.

[0013] Further, a handrail is further provided on the rear side of the top of the bracket.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The post-weld heat treatment trolley for boilers of the present utility model drives the mounting plate and the heating belt to move up and down along the bracket through the drive motor and the transmission mechanism, so as to adjust the height of the heating belt, and heats the outer wall of the boiler through the heating belt to adapt to boilers of different sizes, and the heating belt can be replaced according to different requirements, improving the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0018] Figure 2 is a side view of the partial structure of the present utility model;

[0019] Figure 3 is Figure 2 a partial structure cross-sectional view at A in

[0020] Reference numerals:

[0021] 1 - vehicle body, 2 - bracket, 3 - drive motor, 4 - mounting frame, 5 - mounting plate, 6 - heating tape, 7 - support rod, 8 - power interface, 9 - support arm, 10 - first caster, 11 - second caster, 12 - handrail, 13 - pulley, 14 - belt, 15 - connecting block, 16 - groove, 17 - chute, 18 - bolt, 19 - suspension port, 20 - inverted L-shaped hook. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0023] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0024] In addition, the descriptions involving "first", "second", etc. in the present invention are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features.

[0025] In the description of the embodiments, unless otherwise clearly specified and limited, terms such as "set", "connected", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected, or connected through an intermediate medium, or the internal communication of two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] As Figure 1 shown, the post-weld heat treatment trolley for boilers in this embodiment includes a vehicle body 1, brackets 2, a drive motor 3, a transmission mechanism, a mounting frame 4, a mounting plate 5, and a heating tape 6. On both sides of the vehicle body 1, a bracket 2 is provided longitudinally. The drive motor 3 is arranged at the rear of the vehicle body 1 and is in transmission connection with the transmission mechanism arranged on the bracket 2. The mounting frame 4 is arranged on the front side of the bracket 2 and is in transmission connection with the transmission mechanism. The mounting plates 5 are arranged at intervals on the front side of the mounting frame 4, and the two mounting plates 5 are connected by a plurality of support rods 7. The heating tape 6 is arranged on the front side of the plurality of support rods 7. A power interface 8 is provided on the back of the mounting frame 4, and the heating tape 6 is connected to the power interface 8.

[0027] At the front side of the vehicle body 1, there is an extended support arm 9. At the rear side of the vehicle body 1, there is a first caster 10. At the front side of the support arm 9, there is a second caster 11. At the rear side of the top of the bracket 2, there is also a handrail 12. The whole trolley can be moved by pushing it through the handrail 12. The support arm 9 can be used to assist in carrying goods, realizing the multi-purpose use of one vehicle.

[0028] The transmission mechanism includes a pulley 13, a belt 14 and a connecting block 15. On the outer sides of the brackets 2 on both sides, there are grooves 16. On the upper and lower sides of each groove 16, there is a pulley 13. The driving motor 3 is in transmission connection with the lower pulley 13, and the belt 14 is arranged around the upper and lower pulleys 13.

[0029] As Figure 2 shown, on the side wall of the groove 16 close to the mounting frame 4, there is a chute 17. The connecting block 15 passes through the chute 17 and is connected to the mounting frame 4. The connecting block 15 is connected to the belt 14 and the mounting frame 4 through bolts 18.

[0030] The driving motor 3 drives the pulley 13 on one side to rotate, and then drives the connecting block 15 to move up and down along the chute 17 through the belt 14, so as to drive the mounting frame 4 to move up and down along the bracket 2, thereby realizing the adjustment of the height of the heating belt 6 to adapt to boilers of different sizes.

[0031] As Figure 3 shown, on the front side of the mounting frame 4, there is a suspension opening 19. On the back side of the mounting plate 5, there is an inverted L-shaped hook 20. The inverted L-shaped hook 20 is arranged in the suspension opening 19. Through the cooperation of the inverted L-shaped hook 20 and the suspension opening 19, the mounting plate 5 and the heating belt 6 can be detached from the mounting frame 4, and the heating belt 6 with different densities can be replaced, so as to adapt to the heat treatment under different working conditions.

[0032] When the utility model is in use, the boiler to be heat-treated is placed horizontally on the roller bracket, and the boiler can rotate on the roller bracket. During heat treatment, the heating belt 6 is adjusted to a suitable height, and the trolley is pushed to make the heating belt 6 closely attached to the outer wall of the boiler. After the heat treatment of this part is completed, the boiler is rotated or the trolley is moved to perform heat treatment on another part.

[0033] The above are only the preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those skilled in the art can implement it; when the combination of the technical solutions is contradictory or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the protection scope required by the present utility model.

Claims

1. A boiler post-weld heat treatment trolley, characterized in that: It includes a vehicle body, a bracket, a driving motor, a transmission mechanism, a mounting frame, a mounting plate and a heating belt. A bracket is provided on each side of the vehicle body along the longitudinal direction. The driving motor is arranged at the rear of the vehicle body and is connected to the transmission mechanism arranged on the bracket. The mounting frame is arranged at the front side of the bracket and is connected to the transmission mechanism. The mounting plates are arranged at intervals in front of the mounting frames, and the two mounting plates are connected by a plurality of support rods. The heating belt is arranged in front of the plurality of support rods. A power interface is provided at the back of the mounting frame, and the heating belt is connected to the power interface.

2. The boiler post-weld heat treatment trolley according to claim 1, characterized in that: The transmission mechanism includes a pulley, a belt and a connecting block. The outer sides of the brackets on both sides are provided with grooves, and a pulley is provided on the upper and lower sides of the groove respectively. The drive motor is connected to the pulley on the lower side for transmission, and the belt is arranged around the upper and lower pulleys. A slide groove is provided on the side wall of the groove close to the mounting frame, and the connecting block is connected to the mounting frame through the slide groove.

3. The boiler post-weld heat treatment trolley according to claim 2 is characterized in that: The connecting block is connected to the belt and the mounting frame by bolts.

4. The boiler post-weld heat treatment trolley according to claim 1, characterized in that: A hanging opening is provided on the front side of the installation frame, and an inverted L-shaped hook is provided on the back side of the installation plate. The inverted L-shaped hook is arranged in the hanging opening.

5. The boiler post-weld heat treatment trolley according to claim 1, characterized in that: An extended supporting arm is arranged on the front side of the vehicle body.

6. The boiler post-weld heat treatment trolley according to claim 5, characterized in that: The rear side of the vehicle body is provided with a first caster, and the front side of the support arm is provided with a second caster.

7. The boiler post-weld heat treatment trolley according to claim 1, characterized in that: A handrail is also provided on the rear side of the top of the support.

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