Torque multiplier for wind power

Abstract

The utility model relates to the technical field of torque multipliers, in particular to a torque multiplier for wind power, which comprises an input shaft, a gear piece fixed at the end part of the input shaft, and an output shaft fixed at one end, far away from the input shaft, of the gear piece, and a clamping groove is formed in the side wall of the output shaft. A plurality of sleeves can be arranged on the inner wall of the clamping groove in a clamped mode, and large bolts of different models can be arranged on the sleeves in a clamped mode. The torque multiplier has the effect that the torque multiplier can conduct fastening work on large bolts of different models, and therefore the working range of the torque multiplier is enlarged.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of torque multiplier, in particular to a torque multiplier for wind power. BACKGROUND

[0002] The torque multiplier is a mechanical tool for amplifying torque output, commonly used in scenarios that require high torque but manual tools cannot directly reach, mainly applied to the tightening work of large steel structure bolts, especially in the power environment to undertake high-precision torque control tasks.

[0003] The existing torque multiplier includes a bracket, a primary gear, a secondary gear and a tertiary gear mounted on the inner wall of the bracket, wherein the primary gear is engaged with the secondary gear, and the secondary gear is engaged with the tertiary gear, the upper end of the bracket is fixed with a crossbar for easy gripping through bolts, and the lower end of the bracket is fixed with a hexagonal sleeve through bolts. When the worker uses the torque multiplier to work, the worker places the bracket at the position of the large bolt to be worked, then controls the crossbar to drive the bracket to rotate, and realizes the tightening of the large bolt through the speed reduction of the primary gear, the secondary gear and the tertiary gear.

[0004] The above-mentioned torque multiplier only tightens the large bolts of fixed models, the working range is small, and there is room for improvement. CONTENT OF THE UTILITY MODEL

[0005] In order to enable the torque multiplier to tighten the large bolts of different models, thereby increasing the working range of the torque multiplier, the present application provides a torque multiplier for wind power.

[0006] The torque multiplier for wind power provided by the present application adopts the following technical scheme:

[0007] A torque multiplier for wind power, comprising an input shaft, a gear piece fixed to the end of the input shaft, an output shaft fixed to the end of the gear piece away from the input shaft, a clamping groove is formed in the side wall of the output shaft, and the inner wall of the clamping groove can clamp a plurality of sleeves, and the plurality of sleeves can clamp large bolts of different models respectively.

[0008] By adopting the above technical scheme, when the worker uses the torque multiplier, the worker installs the sleeve corresponding to the model of the large bolt on the inner wall of the clamping groove, then controls the torque multiplier to be placed above the large bolt, at this time the inner wall of the sleeve abuts against the outer wall of the large bolt, the worker can control the output shaft through the rotation of the input shaft to realize the tightening work of the large bolt, when the worker needs to work on large bolts of different models, the worker dismounts and replaces the sleeve from the inner wall of the clamping groove. This setting enables the torque multiplier to tighten the large bolts of different models, thereby increasing the working range of the torque multiplier.

[0009] Optionally, a side wall of the output shaft is provided with a spring pin, and an end of the spring pin is capable of abutting against a side wall of the sleeve.

[0010] By using the above technical scheme, when the staff installs the sleeve, the staff installs the sleeve on the inner wall of the clamping groove, at this time the spring pin pops out and is clamped on the side wall of the sleeve, thereby realizing the fixation of the sleeve. This arrangement forms a mechanical lock for the sleeve, which is convenient for the staff to operate.

[0011] Optionally, the gear member comprises a gear cover fixed to the outside of the input end, a sun gear installed on the input shaft near one end of the output shaft, and a planetary gear installed outside the sun gear. The outer ring of the sun gear is engaged with the inner ring of the planetary gear, the inner ring of the sun gear is interference-fitted with the side wall of the input end, and the output shaft is fixed to the end of the planetary gear away from the output shaft.

[0012] By using the above technical scheme, the combination of the sun gear and the planetary gear amplifies the torque of the input shaft. At the same time, the arrangement of the planetary gear around the sun gear reduces the radial dimension of the overall gear set in the environment of the gear cover, improves the space utilization of the device, and makes the torque multiplier also work in a narrow space.

[0013] Optionally, a side wall of the output shaft is provided with a spring pin, and an end of the spring pin is capable of abutting against a side wall of the sleeve.

[0014] By using the above technical scheme, the arrangement of the counterforce wall plate forms a rigid support structure with the gear cover, so that the reaction force during the operation of the torque multiplier is transmitted to the external environment through the counterforce wall plate, thereby improving the work efficiency of the staff using the torque multiplier.

[0015] Optionally, a side wall of the output shaft is provided with a spring pin, and an end of the spring pin is capable of abutting against a side wall of the sleeve.

[0016] By using the above technical scheme, the arrangement of the waist-shaped hole and the counterforce wall column makes the position of the counterforce fulcrum dynamically adjustable, i.e. the counterforce wall column can adapt to different working environments, thereby increasing the working range of the torque multiplier and increasing the stability of the staff using the torque multiplier.

[0017] Optionally, the end of the counterforce wall column is provided with a locking member, and the side wall of the locking member abuts against the side wall of the counterforce wall plate.

[0018] By using the above technical scheme, the arrangement of the locking member enables the staff to lock the relative position of the counterforce wall column when the counterforce fulcrum is found, thereby further increasing the stability of the torque multiplier during operation.

[0019] Optionally, the side wall of the gear cover is fixed with a gear cylinder, the gear cylinder is located outside the planetary gear, and the lower side of the gear cylinder is fixed with the side wall of the counterforce wall plate.

[0020] By adopting the above technical scheme, the gear cylinder further optimizes the torque transmission path, and the bending strength of the torque multiplier is increased under the joint action of the gear cylinder and the counterforce wall plate. The gear cylinder reduces the possibility of dust entering the inner wall of the sun gear and the planetary gear, thereby increasing the service life of the torque multiplier.

[0021] Optionally, the side wall of the input shaft is provided with a control groove, and the control groove can abut against the side wall of the wrench.

[0022] By adopting the above technical scheme, the control groove is provided to facilitate the worker to control the input shaft through the control groove, thereby simplifying the work process of the worker controlling the torque multiplier.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] 1. When the worker uses the torque multiplier, the worker places the output shaft on the upper side of the large bolt, at this time, the inner wall of the sleeve abuts against the side wall of the large bolt, the worker drives the gear member to rotate by rotating the input shaft, and the output shaft drives the sleeve to rotate under the multiplication effect of the gear member, thereby realizing the fastening work of the large bolt. When the worker fastens the large bolt of different models, the worker replaces the sleeve of different models and repeats the above process. This setting enables the torque multiplier to fasten the large bolt of different models, thereby increasing the working range of the torque multiplier.

[0025] 2. The setting of the counterforce wall column and the counterforce wall plate improves the stability of the worker when using the torque multiplier. The setting of the counterforce wall column provides a counterforce for the torque multiplier, thereby enabling the worker to perform the fastening work on the large bolt without providing a counterforce by himself. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a schematic view of the overall structure of a torque multiplier for wind power in an embodiment of the present application.

[0027] Figure 2 is a sectional view of a torque multiplier for wind power in an embodiment of the present application.

[0028] Figure 3 is a schematic view of the overall structure of a torque multiplier for wind power in an embodiment of the present application, which is used to show the overall structure after replacing the 3 / 4" square tenon sleeve.

[0029] Figure 4Fig. 1 is a schematic view of the overall structure of a torque multiplier for wind power in the embodiment of the present application, used to show the overall structure after replacing the hexagonal sleeve.

[0030] Fig. 1 is a schematic view of the overall structure of a torque multiplier for wind power in the embodiment of the present application, used to show the overall structure after replacing the hexagonal sleeve. DETAILED DESCRIPTION

[0031] The following will be described in detail with reference to the accompanying drawings Figures 1-4 The present application will be further described in detail.

[0032] The embodiment of the present application discloses a torque multiplier for wind power.

[0033] Reference Figure 1 and Figure 2 A torque multiplier for wind power, comprising an input shaft 1, a gear part 2 installed at the end of the input shaft 1, and an output shaft 3 fixed to the end of the gear part 2 away from the input shaft 1, wherein the end of the output shaft 3 away from the input shaft 1 is provided with a clamping groove 4, and the end of the input shaft 1 away from the output shaft 3 is provided with a control groove 12, in the embodiment of the present application, the clamping groove 4 and the control groove 12 are both square, the inner wall of the clamping groove 4 is clamped and fixed with a sleeve 5, the sleeve 5 can select different models of sleeve 5 for clamping different models of large bolts, the sleeve 5 in the embodiment of the present application is preferably a 1" square tenon sleeve 5, and the inner wall of the control groove 12 can abut against the side wall of a torque wrench.

[0034] Reference Figure 1 and Figure 2 The side wall of the output shaft 3 is slidably connected with a spring pin 6, the spring pin 6 is located in the inner wall of the clamping groove 4, the end of the spring pin 6 can abut against the side wall of the sleeve 5, the gear part 2 comprises a gear cover 21 in interference fit with the outer side of the input shaft 1, a sun gear 22 installed at the end of the input shaft 1 close to the output shaft 3, and a planetary gear 23 arranged at the edge position of the sun gear 22, wherein the inner wall of the sun gear 22 is in interference fit with the outer wall of the input shaft 1, and the outer wall of the sun gear 22 is in mesh with the inner wall of the planetary gear 23.

[0035] Reference Figure 1The side wall of the output shaft 3 is interference-fitted with a counterforce wall plate 7, the counterforce wall plate 7 is arranged opposite to the gear cover 21, one side of the counterforce wall plate 7 is arranged in extension, a waist-shaped hole 8 is formed in the counterforce wall plate 7, a counterforce wall column 9 is slidingly fitted in the inner wall of the waist-shaped hole 8, the diameter of the counterforce wall column 9 is greater than the width of the waist-shaped hole 8, a locking piece 10 is installed at the upper end of the counterforce wall column 9, in the embodiment of the application, the locking piece 10 is preferably a bolt, the side wall of the locking piece 10 is threadedly connected with the inner wall of the counterforce wall column 9, when the staff uses the counterforce wall column 9, the staff can control the relative position of the counterforce wall column 9 on the side wall of the counterforce wall plate 7 through the locking piece 10, the position between the gear cover 21 and the counterforce wall plate 7 is fixed by a gear cylinder 11, the gear cylinder 11 is fixed by bolts on the side walls of the gear cover 21 and the counterforce wall plate 7 respectively, and the gear cylinder 11 is located outside the planetary gear 23.

[0036] Referring to Figure 3 and Figure 4 In the embodiment of the application, the sleeve 5 can be selected from a 1" square tenon sleeve 5, a 3 / 4" square tenon sleeve 5 and a hexagonal sleeve 5, when the staff uses the torque multiplier, the staff can change the type of the sleeve 5 according to the model of the large bolt, so as to install the sleeve 5 to fasten the large bolt.

[0037] The implementation principle of the torque multiplier for wind power in the embodiment of the application is as follows: when the staff uses the torque multiplier, the staff installs the sleeve 5 above the large bolt, at this time, the staff twists the input shaft 1 through the torque wrench, the input shaft 1 drives the sun gear 22 to rotate, and further drives the planetary gear 23 to rotate, at this time, the multiplied torque is transmitted to the side wall of the large bolt through the output shaft 3, so as to realize the fastening work of the large bolt, when it is necessary to fasten different models of large bolts, the staff changes the type of the sleeve 5 fitted in the slot 4 through the elastic pin 6, and repeats the above process for different models of large bolts, the setting enables the torque multiplier to fasten different models of large bolts, so as to increase the working range of the torque multiplier.

[0038] The above are the preferred embodiments of the application, which do not limit the protection scope of the application, therefore: any equivalent changes made on the structure, shape and principle of the application should be covered within the protection scope of the application.

Claims

1. A torque multiplier for wind power, characterized in that: It includes an input shaft (1), a gear component (2) fixed to the end of the input shaft (1), and an output shaft (3) fixed to the end of the gear component (2) away from the input shaft (1). The side wall of the output shaft (3) is provided with a locking groove (4). The inner wall of the locking groove (4) can hold a number of sleeves (5). The number of sleeves (5) can hold different types of large bolts.

2. The torque multiplier for wind power according to claim 1, characterized in that: The output shaft (3) has a spring pin (6) installed on its side wall, and the end of the spring pin (6) can abut against the side wall of the sleeve (5).

3. A torque multiplier for wind power according to claim 2, characterized in that: The gear component (2) includes a gear cover (21) fixed to the outside of the input shaft (1), a sun gear (22) mounted on one end of the input shaft (1) near the output shaft (3), and a planet gear (23) mounted on the outside of the sun gear (22). The outer ring of the sun gear (22) meshes with the inner ring of the planet gear (23), and the inner ring of the sun gear (22) is interference-fitted with the side wall of the input shaft (1). The output shaft (3) is fixed to the end of the planet gear (23) away from the output shaft (3).

4. A torque multiplier for wind power according to claim 3, characterized in that: The side wall of the output shaft (3) is fixed with a reaction wall plate (7), which is arranged opposite to the gear cover (21).

5. A torque multiplier for wind power according to claim 4, characterized in that: The side wall of the reaction wall plate (7) is provided with a waist-shaped hole (8), and a reaction wall column (9) is slidably provided on the inner wall of the waist-shaped hole (8). The rotation direction of the reaction wall column (9) is opposite to that of the input shaft (1).

6. A torque multiplier for wind power according to claim 5, characterized in that: The end of the reaction wall column (9) is provided with a locking member (10), and the side wall of the locking member (10) abuts against the side wall of the reaction wall plate (7).

7. A torque multiplier for wind power according to claim 6, characterized in that: A gear cylinder (11) is fixed to the side wall of the gear cover (21). The gear cylinder (11) is located outside the planetary gear (23). The lower side of the gear cylinder (11) is fixed to the side wall of the reaction wall plate (7).

8. A torque multiplier for wind power according to claim 7, characterized in that: The input shaft (1) has a control groove (12) on its side wall, which can abut against the side wall of the wrench.

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