Clamping tool for welding fan bracket of wind power gear box

Abstract

The utility model provides a clamping tool for welding a fan bracket of a wind power gear box, which is characterized in that a left baffle plate is fixedly arranged on the left side of a tool base, and the left baffle plate is fixedly arranged on the right side of the tool base; the left side edge and the right side edge of the trapezoidal pressing module are vertical, and the front side edge and the rear side edge are parallel; the supporting block is fixed on the tool base; the tool screw penetrates through the threaded hole in the supporting block in a matched and threaded mode and then penetrates through the threaded hole in the corresponding position of the rear side edge of the pressing module in a matched and threaded mode, the round nut is screwed to the thread, exposed out of the rear side edge, of the tool screw, and the tool screw and the rear side edge are fixed. The left support and the right support are perpendicularly placed on the tool base, the left side edge of the pressing module presses the left support to make contact, the left support presses the left baffle to make contact, the right side edge of the pressing module presses the right support, the right support presses the right baffle, and the left support and the right support are fixed to the tool base. According to the utility model, the tool cost is saved, the safety is improved, and the quality of the bracket is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of wind power gear box, concretely is a kind of clamping tool for the welding of fan support of wind power gear box. BACKGROUND

[0002] Wind turbine gear box is an important part of wind energy conversion into electrical energy, gear will generate a lot of heat in the working process, if long time in high temperature state, then it can accelerate the damage of gear, reduce the life of unit.Therefore, the cooling of gear box is very necessary.The function of cooling system is to take away the heat inside the gear box by circulating lubricating oil or air, reduce the temperature of gear box to normal range, so as to protect the life of gear and unit.High temperature can also reduce the viscosity of lubricating oil, aggravate mechanical wear, thereby affecting the operation of rotor, reduce power generation, affect wind energy utilization rate.Through gear box cooling, wind energy utilization rate can be effectively improved, wear is reduced, unit maintenance frequency is reduced, power generation benefit is improved.

[0003] In summary, gear box cooling system has a very important role for the normal operation of wind turbine, protecting gear box, prolonging the life of unit and improving wind energy utilization rate.A high-power fan is usually installed above wind power gear box, and the temperature of gear box is reduced by air circulation.The fan is fixed at the top of gear box after being installed on the support, and the supports of fan are often connected by welding.

[0004] Technical scheme of prior art one:

[0005] Two fan supports to be welded are fixed by pressing plate, and then welding work is carried out.

[0006] Disadvantages of prior art one:

[0007] 1.When the fan support is fixed by pressing plate, one side of the pressing plate needs to be placed on the cushion block, and the other side needs to be placed on the fan support.Because the specifications and models of fan supports may be different, the height of cushion block used is also different, resulting in high cost of tooling.

[0008] 2.The support is fixed by pressing plate, and the contact area between pressing plate and fan support is small.If the pressure is too large when pressing, local deformation of support may occur, affecting the quality of support.

[0009] 3.The two supports to be welded need to be fixed respectively, and the clamping efficiency is low.

[0010] Technical scheme of prior art two:

[0011] Two supports to be welded are fixed by manual holding.

[0012] Disadvantages of prior art two:

[0013] 1. The temperature is high during the welding process, and if the operation is not proper, the personal safety of workers will be affected.

[0014] 2. The manual fixing method needs two workers to operate simultaneously, one for fixing and the other for welding, which causes waste of personnel working efficiency. Content of the utility model

[0015] The utility model provides a clamping tool for fan support welding of wind power gear box, which aims at solving the defects of prior art, saving tooling cost, improving safety and ensuring the quality of the support itself.

[0016] The utility model solves the technical problems by adopting the following technical scheme:

[0017] A clamping tool for fan support welding of wind power gear box, characterized by:

[0018] The left baffle is fixedly installed on the left side of the tool base, the right baffle is fixedly installed on the right side of the tool base, and the left baffle and the right baffle are perpendicular;

[0019] The clamping tool has a trapezoidal compression module, the left side and the right side of the trapezoidal compression module are perpendicular, and the front side and the rear side are parallel;

[0020] The support block is fixed on the tool base; after the tool screw is screwed through the threaded hole above the support block and then screwed through the threaded hole corresponding to the rear side of the compression module, the circular nut is tightened to the thread exposed on the rear side of the tool screw, so that the tool screw and the rear side are fixed;

[0021] The left support and the right support are placed vertically on the tool base, the left side of the compression module compresses the left support, the left support compresses the left baffle, the right side of the compression module compresses the right support, and the right support compresses the right baffle, so that the left support and the right support are fixed on the tool base.

[0022] The cylindrical pin is installed in the pin hole corresponding to the tool base and the left baffle, the bolt is screwed in the threaded hole corresponding to the left baffle after passing through the counterbore of the tool base, so that the left baffle is fixed on the tool base; the cylindrical pin is installed in the pin hole corresponding to the tool base and the right baffle, the bolt is screwed in the threaded hole corresponding to the right baffle after passing through the counterbore of the tool base, so that the right baffle is fixed on the tool base.

[0023] The left pressing plate, the front connecting plate, the right pressing plate and the rear connecting plate are welded into a pressing module; the left pressing plate and the right pressing plate are perpendicular, the front connecting plate connects the front ends of the left pressing plate and the right pressing plate, the rear connecting plate connects the rear ends of the left pressing plate and the right pressing plate, and the front connecting plate and the rear connecting plate are parallel; the left pressing plate is a left side of a trapezoid, the right pressing plate is a right side of the trapezoid, the front connecting plate is a front side of the trapezoid, and the rear connecting plate is a rear side of the trapezoid.

[0024] The left pressing plate, the right pressing plate and the rear connecting plate have the same height and are greater than the height of the supporting block.

[0025] The utility model discloses the beneficial aspect lies in:

[0026] 1) without needing through manual mode, only needs to use the tooling in the utility model just can realize the welding work of fan support in certain appearance size range, saves the tooling cost, and safe and effective.

[0027] 2) use the tooling in the utility model can fix two supports that need to weld simultaneously, and with the support contact area is big, effectively avoided the risk that the support partial deformation is caused by too small stress area of tooling, effectively guaranteed the quality of support itself. BRIEF DESCRIPTION OF DRAWINGS

[0028] The utility model is further described below in connection with the drawings and examples.

[0029] Figure 1 It is the use state diagram of the tooling of the utility model for fan support welding;

[0030] Figure 2 It is Figure 1 A partial view of the utility model;

[0031] Figure 3 It is Figure 1 B partial view of the utility model;

[0032] Figure 4 It is Figure 1 C partial view of the utility model;

[0033] Figure 5 It is the effect diagram of the tooling of the utility model when not placing the support. DETAILED DESCRIPTION

[0034] In order to more clearly illustrate the technical scheme of the utility model, the following will be briefly introduced the drawings needed to be used in the description, obviously, the drawings in the following description only some embodiments of the utility model, for the ordinary skilled person in the art, under the premise of not paying the creative labor, still can obtain other embodiments according to these drawings. In order to facilitate the understanding of the utility model, the following will be more detailed description of the utility model in connection with the drawings and specific examples.

[0035] It should be noted that when an element is referred to as being "fixed" to another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "upper", "lower", "inner", "outer", "bottom", and the like used in the description are used for the purpose of illustration and description and are not intended to limit the scope of the present application to a particular orientation or configuration, and thus are not intended to be limiting.

[0036] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 ,

[0037] The tool base 1 is an integral cover plate type part, and the left baffle 2 is a rectangular cover plate type part. The left baffle 2 is installed to the left side of the tool base 1, and the left baffle 2 is fixed to the tool base 1 by two pins 19 and two bolts 20. Two pin holes and two counterbores are pre-processed on the left side of the tool base 1, and two pin holes and two threaded holes are pre-processed on the corresponding positions below the left baffle 2. Two cylindrical pins 19 are installed into the corresponding pin holes of the tool base 1 and the left baffle 2, and then the bolts 20 are screwed into the corresponding threaded holes of the left baffle 2 through the counterbores of the tool base 1. In this way, the left baffle 2 can be fixed on the tool base 1.

[0038] The right baffle 3 is installed to the right side of the tool base 1, and the right baffle 3 is also fixed to the tool base 1 by two pins and two bolts. The fixing method of the right baffle 3 is consistent with that of the left baffle 2. Two pin holes and two counterbores are pre-processed on the top of the tool base 1, and two pin holes and two threaded holes are pre-processed on the corresponding positions below the right baffle 3. Two cylindrical pins 19 are installed into the corresponding pin holes of the tool base 1 and the right baffle 3, and then the bolts 20 are screwed into the corresponding threaded holes of the right baffle 3 through the counterbores of the tool base 1. In this way, the right baffle 3 can be fixed on the tool base 1.

[0039] The left baffle 2 and the right baffle 3 are perpendicular.

[0040] The left pressing plate 6, the front connecting plate 7, the right pressing plate 8 and the rear connecting plate 9 are cover plate parts with the same height, and the plates are connected into a structure similar to a trapezoid through welding. The left pressing plate 6 and the right pressing plate 8 are perpendicular, the front connecting plate 7 connects the front ends of the left pressing plate 6 and the right pressing plate 8, the rear connecting plate 9 connects the rear ends of the left pressing plate 6 and the right pressing plate 8, and the front connecting plate 7 and the rear connecting plate 9 are parallel. The structure composed of the left pressing plate 6, the front connecting plate 7, the right pressing plate 8 and the rear connecting plate 9 is the pressing module of the tool.

[0041] The support block 10 is a cuboid part with a certain thickness, and a threaded hole is formed in advance at the center position. A threaded hole is also formed in advance at the center position of the rear connecting plate 9. The threaded hole on the support block 10 corresponds to the threaded hole on the rear connecting plate 9. The support block 10 is fixed to the tool base 1 through welding. The tool screw 11 is first screwed through the threaded hole on the support block 10, and then the tool screw 11 is screwed through the threaded hole on the rear connecting plate 9. After the tool screw 11 is screwed onto the rear connecting plate 9, a portion of the threaded part of the tool screw 11 needs to be exposed. The round nut 12 is installed on the exposed threaded part of the tool screw 11, and the tool screw 11 is fixed to the rear connecting plate 9 by tightening the round nut 12. Finally, the left support 4 and the right support 5 to be welded are placed vertically on the tool base 1. The length of the tool screw 11 is controlled by turning the tool screw 11. Since the tool screw 11 is fixed to the rear connecting plate 9, the pressing module composed of the left pressing plate 6, the front connecting plate 7, the right pressing plate 8 and the rear connecting plate 9 will also move. With the movement of the pressing module, the left pressing plate 6 will be in close contact with the left support 4, the left support 4 will be in close contact with the left baffle 2, the right pressing plate 8 will be in close contact with the right support 5, and the right support 5 will be in close contact with the right baffle 3. Finally, the left support 4 and the right support 5 are fixed to the tool base 1. After being fixed and clamped, the left support 4 and the right support 5 can be welded at the connection position.

[0042] The heights of the left pressing plate 6, the right pressing plate 8 and the rear connecting plate 9 are consistent, and the heights are slightly higher than the height of the support block 10.

[0043] The existing welded fan support is pressed tightly by a pressing plate or fixed manually. These two methods not only have hidden dangers to the quality of the fan support itself, but also have certain safety hazards to the operator. The tool of the utility model can simultaneously fix two fan supports to be welded, which can effectively ensure the quality of the fan support itself and can be operated by a single person without causing harm to the operator.

[0044] The utility model discloses nature tooling can be applicable to the welding work of fan support in a certain size range, need not to switch tooling back and forth, and the contact area of the utility model tooling and fan support is bigger, it is more stable like this, and it is time -saving and labor -saving to operate.

[0045] The utility model discloses tooling has the advantages of:

[0046] 1. Simple structure, easy to process and manufacture.

[0047] 2. Strong universality, can be applicable to the welding work of fan support in a certain range, save the cost.

[0048] 3. The fan support that needs to carry out welding is fixed through the mode of the utility model, reduces the risk that the fan support deforms because of the small contact area previously, and simultaneously, the tooling operation also does not have any security risk.

[0049] 4. One person can operate, effectively saves the labor cost.

[0050] The embodiments in the specification adopt progressive mode and each embodiment focuses on the difference from other embodiments, and the same or similar parts of each embodiment can be referred to each other. The above description of the disclosed embodiments enables the person skilled in the art to implement or use the utility model. Various modifications of the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to the embodiments shown in the text, but will conform to the widest scope consistent with the principles and novel features disclosed in the text.

Claims

1. A clamping tool for welding of a fan bracket for a wind turbine gearbox, characterized in that: The left baffle is fixedly installed on the left side of the tool base, the right baffle is fixedly installed on the right side of the tool base, and the left baffle and the right baffle are perpendicular; the pressing module is trapezoidal, the left side and the right side of the trapezoidal are perpendicular, and the front side and the rear side are parallel; the support block is fixed on the tool base; the tool screw is screwed through the threaded hole above the support block, then is screwed through the threaded hole corresponding to the position of the rear side of the pressing module, and the round nut is tightened on the thread exposed from the rear side of the tool screw to fix the tool screw and the rear side; the left support and the right support are placed vertically on the tool base, the left side of the pressing module presses the left support, the left support presses the left baffle, the right side of the pressing module presses the right support, the right support presses the right baffle, and the left support and the right support are fixed on the tool base.

2. A clamping tool for welding of fan bracket of wind turbine gearbox according to claim 1, characterized in that: The cylindrical pin is installed into the pin hole corresponding to the tool base and the left baffle, the bolt is screwed into the threaded hole corresponding to the left baffle through the counterbore of the tool base, and the left baffle is fixed on the tool base; the cylindrical pin is installed into the pin hole corresponding to the tool base and the right baffle, the bolt is screwed into the threaded hole corresponding to the right baffle through the counterbore of the tool base, and the right baffle is fixed on the tool base.

3. A clamping tool for welding of fan bracket of wind turbine gearbox as claimed in claim 1, wherein: The left pressing plate, the front connecting plate, the right pressing plate and the rear connecting plate are welded into the pressing module; the left pressing plate and the right pressing plate are perpendicular, the front connecting plate connects the front ends of the left pressing plate and the right pressing plate, the rear connecting plate connects the rear ends of the left pressing plate and the right pressing plate, and the front connecting plate and the rear connecting plate are parallel; the left pressing plate is the left side of the trapezoid, the right pressing plate is the right side of the trapezoid, the front connecting plate is the front side of the trapezoid, and the rear connecting plate is the rear side of the trapezoid.

4. A clamping tool for welding of fan bracket of wind turbine gearbox as claimed in claim 1, wherein: The left pressing plate, the right pressing plate and the rear connecting plate have the same height and are greater than the height of the support block.

Images