CN107299490B - Fastening tool and fastening method for heat dissipation wheel of washing machine - Google Patents
Fastening tool and fastening method for heat dissipation wheel of washing machine Download PDFInfo
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- CN107299490B CN107299490B CN201710497560.6A CN201710497560A CN107299490B CN 107299490 B CN107299490 B CN 107299490B CN 201710497560 A CN201710497560 A CN 201710497560A CN 107299490 B CN107299490 B CN 107299490B
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
- D06F37/00—Details specific to washing machines covered by groups D06F21/00 - D06F25/00
- D06F37/30—Driving arrangements
Abstract
The invention provides a fastening tool for a heat dissipation wheel of a washing machine and a fastening method thereof, wherein the fastening tool comprises a base, a first force transmission component and a second force transmission component, the first force transmission component and the second force transmission component are arranged on the base and can be matched with a nut of a bolt, the first force transmission component and the second force transmission component can be matched with the nut, the first force transmission component and the second force transmission component respectively transmit rotating torque on the base to the bolt and the nut and drive the bolt and the nut to be rotatably installed, and a first set torque transmission component is arranged between the first force transmission component and the base; when the bolt is fastened in place, the rotation torque on the base is continuously transmitted to the second force transmission component and drives the nut to rotate and fasten. Therefore, the first force transmission part drives the bolt to be installed in place and then does not continue to transmit the torque in one process, the second force transmission part continues to transmit the torque to the nut, the bolt and the nut can be fastened and finished through one process, the firmness of bolt fixing is facilitated, and the installation efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of washing machine manufacturing, and particularly relates to a fastening tool for a washing machine heat dissipation wheel and a fastening method using the fastening tool.
Background
The washing machine is a device for removing pollutant from the washing in the inner tub by using washing water, detergent and mechanical rotation. In addition, the washing machine performs washing, rinsing, dehydration, and other processes in sequence when removing contaminants from laundry. In detail, the driving device provides driving force for the inner drum or the impeller to perform washing operation on the washings.
The driving device comprises a motor fixed on the outer cylinder, and a heat dissipation wheel is sleeved and fixed on a motor shaft; the heat dissipation wheel is provided with a radial threaded hole, the motor shaft is provided with a pin hole, and the bolt is screwed on the threaded hole and extends into the pin hole to stop the axial movement of the heat dissipation wheel. Because the washing machine is greatly vibrated in the working process, the heat dissipation wheel is fixed by the bolt, the vibration resistance is not strong, and the bolt is loosened outwards and separated from the pin hole in the long-term use process; in order to increase the firmness of bolt fixing, a fixing mode of a bolt and a nut is considered, so that the firmness can be greatly improved, and the anti-vibration capability is increased; however, the number of installation processes of the bolts is increased, the bolts need to be fastened in place, and then the nuts need to be fastened, so that the process of fastening the nuts is increased, the assembly time is prolonged, and the installation efficiency is reduced.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a fastening tool for a heat dissipation wheel of a washing machine, which can be used for quickly fastening a bolt and a nut, simplifies the process and improves the production efficiency.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a fastening tool for a heat dissipation wheel of a washing machine is used for fastening a bolt and a nut of the heat dissipation wheel and comprises a base, a first force transmission component and a second force transmission component, wherein the first force transmission component and the second force transmission component are arranged on the base and can be matched with a nut of the bolt, the second force transmission component can be matched with the nut, the first force transmission component and the second force transmission component respectively transmit the rotation torque on the base to the bolt and the nut and drive the bolt and the nut to be rotatably installed, and a first set torque transmission component is arranged between the first force transmission component and the base; when the bolt is fastened in place, the rotating torque given to the bolt by the first force transmission component reaches a first set torque, at the moment, the first force transmission component idles relative to the base, and the rotating torque on the base is continuously transmitted to the second force transmission component and drives the nut to rotate and fasten.
Further, the first set torque is smaller than the torque required for screwing the nut.
Further, the first set torque transmission part comprises a first outer ring fixed with the base and a first inner ring fixed with the first transmission part, and when the rotation torque of the base is smaller than the first set torque, the first inner ring rotates along with the first outer ring; when the rotation torque of the base reaches a first set torque, the first inner ring idles relative to the first outer ring.
Furthermore, a second set torque transmission part is arranged between the second force transmission part and the base, when the nut is fastened in place, the rotation torque given to the nut by the second force transmission part reaches a second set torque, and the first set torque is smaller than the second set torque.
Furthermore, the base is provided with a concave cavity for fixing the first set torque transmission part and an extension part extending upwards along the edge of the concave cavity, and the second force transmission part is positioned on the inner side of the extension part.
Furthermore, fastening tool still includes the rifle body of exportable turning moment, be equipped with on the base can with the input shaft that the rifle body matches.
Furthermore, a second set torque transmission part is arranged between the input shaft and the gun body, when the nut is fastened in place, the second set torque is given to the nut by the second force transmission part, and the base stops rotating.
Furthermore, the first force transmission part is a sleeve which can be sleeved on the outer side of a nut of the bolt.
Furthermore, the first force transmission part comprises a part body and a cylindrical rod extending out of the part body, and a concave groove matched with the end part of the cylindrical rod is formed in a nut of the bolt.
Furthermore, an elastic member is provided between the first force transmission member and the base, and the elastic member gives a force that the first force transmission member approaches in the direction of the bolt.
Based on the fastening tool for the heat dissipation wheel of the washing machine, the invention also provides a fastening method for the fastening tool for the heat dissipation wheel of the washing machine, which can be used as a tool for quickly fastening bolts and nuts, simplifies the process and improves the production efficiency.
A fastening method of the fastening tool includes the steps of:
A. setting the maximum transmission torque of the first set torque transmission part as a first set torque;
B. matching the first force transmission component with a nut of a bolt, and matching the second force transmission component with a nut;
C. giving a rotating moment to the base, so that the first force transmission component and the second force transmission component transmit the rotating moment on the base to the bolt and the nut respectively to drive the bolt and the nut to be rotatably installed;
D. when the rotating torque given to the bolt by the first force transmission component reaches a first set torque, the first force transmission component idles relative to the base, and the bolt is fastened in place; the rotary torque on the base is continuously transmitted to the second force transmission component and drives the nut to rotate and install;
E. and the nut is fastened in place, and the installation is finished.
Furthermore, the fastening tool also comprises a gun body capable of outputting a rotating torque, an input shaft capable of being matched with the cavity is arranged on the base, and a second set torque transmission part is arranged between the input shaft and the cavity; in step A, the maximum transmission torque of the second setting torque transmission part is set as a second setting torque, and in step C, the gun body is started to give a rotating torque to the base.
According to the fastening tool for the heat dissipation wheel of the washing machine, the first force transmission part and the second force transmission part which are respectively matched with the bolt and the nut are arranged on the base, so that the bolt and the nut can be simultaneously and rotatably installed; and by providing a first set torque transmitting member; when the bolt is fastened in place, the first force transmission component idles relative to the base, and the rotating torque on the base is continuously transmitted to the second force transmission component and drives the nut to rotate and fasten; therefore, the first force transmission part drives the bolt to be installed in place and then does not continue to transmit the torque in one process, the second force transmission part continues to transmit the torque to the nut, the bolt and the nut can be fastened and finished through one process, the firmness of bolt fixing is facilitated, and the installation efficiency is improved.
Other features and advantages of the present invention will become more apparent from the following detailed description of the invention when taken in conjunction with the accompanying drawings.
Drawings
Fig. 1 is a schematic view of components of a first embodiment of a fastening tool for a heat dissipation wheel of a washing machine according to the present invention;
FIG. 2 is a schematic structural diagram of the base in FIG. 1;
FIG. 3 is an enlarged schematic view of the first force transfer member of FIG. 1;
FIG. 4 is an enlarged view of the gun body of FIG. 1;
FIG. 5 is an enlarged view of the bolt of FIG. 1;
FIG. 6 is a schematic view showing the components of a second embodiment of a fastening tool for a heat dissipation wheel of a washing machine according to the present invention;
FIG. 7 is an enlarged structural view of the first force-transmitting member of FIG. 1;
FIG. 8 is a schematic view showing the components of a fastening tool for a heat dissipation wheel of a washing machine according to a third embodiment of the present invention;
fig. 9 is a schematic diagram of the components of a fourth embodiment of a fastening tool for a heat dissipation wheel of a washing machine according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "inside", "upper", "lower", "left", "right", etc. indicate the positional relationship based on the positional relationship shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
One, embodiment one
Referring to fig. 1 to 5, a first embodiment of a fastening tool for a heat dissipation wheel of a washing machine according to the present invention is a fastening tool for fastening a bolt 10 and a nut 20, wherein the nut 20 is tightly screwed on the bolt 10, the fastening tool includes a base 1, and a first force transmission member 2 and a second force transmission member 3 disposed on the base 1, wherein the first force transmission member 2 is capable of cooperating with a nut 101 of the bolt 10 and transmitting a rotation torque on the base 1 to the bolt 10, so as to drive the bolt 10 to be screwed; the second force transfer member 3 is adapted to engage the nut 20 and to transfer a rotational torque on the base 1 to the nut 20, driving the tightening of the nut 20 in rotation. A first setting torque transmission part 4 is arranged between the first transmission part 2 and the base 1, the maximum rotation torque which can be borne by the first setting torque transmission part 4 can be set in a certain range by the first setting torque transmission part 4, and the maximum rotation torque which can be borne by the first setting torque transmission part 4 is set to be the torque required when the bolt 10 is fastened and is defined as a first setting torque; when the bolt 10 is fastened in place, the rotation torque given to the bolt 10 by the first force transmission member 2 reaches a first set torque, at this time, the first force transmission member 2 idles relative to the base 1, that is, the first force transmission member 2 is stationary, the rotation torque on the base 1 is not transmitted to the bolt 10, the rotation torque on the base 1 is transmitted to the second force transmission member 3, the second force transmission member 3 drives the nut to rotate and fasten, that is, the first set torque is smaller than the torque required for screwing the nut 20. Thus, the bolt 10 and the nut 20 can be fastened through one process, which is beneficial to the firmness of bolt fixation and improves the installation efficiency.
In this embodiment, referring to fig. 1 and 3, the first setting torque transmission part 4 includes a first outer ring 41 fixed to the base and a first inner ring 42 fixed to the first power transmission part 2, a maximum bearing torque between the first outer ring 41 and the first inner ring 42 is set to be a first setting torque, and when a rotation torque on the first outer ring 41 is smaller than the first setting torque, the first inner ring 42 rotates along with the first outer ring 41, that is, the bolt 10 is driven to be screwed rotationally; when the rotational torque on the first outer race 41 reaches the first set torque, the first inner race 42 idles with respect to the first outer race 41, that is, when the first inner race 42 and the bolt 10 are in a stationary state, the second outer race 41 rotates along with the base 1. The first set torque transmission part 4 is arranged, so that the set first set torque is enabled to act on the bolt 10, the bolt 10 is fastened, and the fastening effect of the bolt 10 is guaranteed; and the bolt 1 can be installed in place firstly, and then the nut 20 is installed in place again, and the installation can be finished through one process.
In this embodiment, referring to fig. 1 and 2, the base 1 is provided with a recessed portion 11 for fixing the first setting torque transmission member 4, and an extending portion 12 extending upward along the edge of the recessed portion 11, and the second force transmission member 3 is fixed inside the extending portion 12. In order to save labor and utilize the gun body 30 capable of outputting the rotation torque to drive the base 1 to rotate, the motor 301 is arranged in the gun body 30 to drive the base 1 to rotate, and the input shaft 13 matched with the gun body 30 is arranged on the base 1, so that the gun body 30 drives the base 1 to rotate, and labor can be saved.
In the embodiment, referring to fig. 1, a second setting torque transmission member 5 is disposed between the input shaft 13 and the gun body 30, when the nut 20 is fastened in place, the second force transmission member 3 applies a second setting torque to the rotation torque of the nut 20, and at this time, the base 1 idles relative to the gun body 30, that is, the base 1 is stationary, wherein the second setting torque is greater than the first setting torque, which ensures that the bolt 10 is fastened in place first and then the nut 20 is fastened in place.
In the present embodiment, referring to fig. 1 and 4, the second setting torque transmission member 5 is a second outer ring 51 fixed to the motor shaft of the gun body 30 and a second inner ring 52 fixed to the input shaft 13 of the base 1, a maximum bearing torque between the second outer ring 51 and the second inner ring 52 is set to be a second setting torque, when the rotation torque transmitted from the gun body 30 to the base 1 is smaller than the second setting torque, the base 1 rotates together with the second outer ring 51 under the driving of the motor 301, and when the rotation torque transmitted from the gun body 30 to the base 1 reaches the second setting torque, the second inner ring 52 idles relative to the second outer ring 51, that is, the base 1 is in a stationary state at this time, the nut 20 is fastened in place, and the second outer ring 51 rotates together with the motor shaft. Through setting up second settlement moment transmission part 5, can guarantee to set for second settlement moment and act on nut 20, realize the fastening of nut 20, be favorable to guaranteeing the fastening effect of nut 20.
In this embodiment, the first force transmission member 2 has at least two opposite claws engaged with the outer side of the nut 101, preferably, the first force transmission member 2 is a sleeve that can be sleeved on the outer side of the nut 101 of the bolt 10, and the cross section of the sleeve is an equilateral hexagon that can be sleeved on the outer side of the nut 101 to transmit the rotation torque to the nut. Similarly, the second force-transmitting member 3 is provided with at least two oppositely arranged catches for engagement with the outer side of the nut 20, preferably the second force-transmitting member 3 is a sleeve which can be fitted around the outer side of the nut 20.
Referring to fig. 1, a fastening method of the fastening tool in the present embodiment is explained, including the steps of:
A. the maximum transmission torque of the first setting torque transmission member 4 is set to the first setting torque.
Specifically, first, the maximum torque to be transmitted by the first setting torque transmission member 4 is set according to the torque required to fasten the bolt 10 to be fastened, and the first setting torque is the torque required to fasten the bolt 10 to be fastened.
At the same time, the maximum torque to be transmitted by the second torque transmission member 5 is set according to the torque required for fastening the nut 20 to be fastened, and the second set torque is the torque required for fastening the bolt 20 to be fastened.
The torque required for fastening the bolts 10 is the same for the same type of washing machine, i.e. the first setting torque does not need to be adjusted and set for the heat dissipation wheel bolts 10 of each washing machine, and only needs to be adjusted again when the model of the washing machine is changed.
B. The first force transfer member 1 is fitted to the nut 101 of the bolt 10 and the second force transfer member 2 is fitted to the nut 20.
Specifically, the first force transmission member 2 of the base 1 is fitted around the outer side of the nut 101 of the bolt 10, and the second force transmission member 3 is fitted around the outer side of the nut 20.
C. A rotational torque is imparted to the base 1 such that the first force transfer member 2 and the second force transfer member 3 transfer the rotational torque on the base 1 to the bolt 10 and the nut 20, respectively, driving the rotational mounting of the bolt 10 and the nut 20.
Specifically, the gun body 30 is started, so that the motor 301 drives the base 1 to rotate, and then the first force transmission component 2 and the second force transmission component 3 respectively transmit the rotation torque on the base 1 to the bolt 10 and the nut 20.
D. When the rotation torque given to the bolt 10 by the first force transmission part 2 reaches a first set torque, the first force transmission part idles relative to the base 1, and the bolt 10 is fastened in place; the rotational torque on the base 1 continues to be transmitted to the second force transmission member 3 and drives the nut 20 to be rotatably mounted.
Specifically, with the rotation of the base 1, firstly, the rotation torque given to the bolt 10 by the first force transmission member 2 reaches a first set torque, the first force transmission member 2 idles relative to the base 1, that is, the first force transmission member 2 and the bolt 10 stop rotating, and the bolt 10 is fastened in place; the base 1 now continues to rotate with the motor 301 and the second force transfer member 3 continues to transfer the rotational torque to the nut 20 and the nut 20 continues to rotate.
E. The nut 20 is tightened in place and the installation is complete.
Specifically, when the rotation torque given to the nut 20 by the second force transmission member 3 reaches a second set torque, the base 1 stops rotating, at this time, the motor shaft drives the second outer ring 51 to idle, the base 1, the second force transmission member 3 on the base 1 and the nut 20 are both in a static state, the nut 10 is fastened in place, and the installation is completed.
Second, embodiment two
Referring to fig. 6 to 7, a second embodiment of a fastening tool for a heat dissipation wheel of a washing machine according to the present invention is shown, and the present embodiment is different from the first embodiment in that the arrangement of the first power transmission member 2 is different, and other structures may be the same as the first embodiment.
A fastening tool of a washing machine heat dissipation wheel is used for fastening a bolt 10 and a nut 20, and comprises a base 1, a first force transmission part 2 and a second force transmission part 3 which are arranged on the base 1, wherein the first force transmission part 2 can be matched with a nut 101 of the bolt 10, transmits the rotation torque on the base 1 to the bolt 10 and drives the bolt 10 to rotate and tighten; the second force transfer member 3 is adapted to engage with the nut 20 and to transfer a rotational torque on the base 1 to the nut 20 to drive the nut 20 to rotate and tighten, and a first set torque transfer member 4 is provided between the first force transfer member 2 and the base 1. The gun body 30 is provided with a motor 301 for driving the base 1 to rotate, the base 1 is provided with an input shaft 13 which can be matched with the gun body 30, and a second setting torque transmission part 5 is arranged between the input shaft 13 and the gun body 30.
In this embodiment, as shown in fig. 7, the first force transfer part 2 comprises a body 21 and a cylindrical rod 22 extending from the body 21, and the nut 101 of the bolt 10 is provided with a concave groove matching the end of the cylindrical rod 22, so that the end of the cylindrical rod 22 is located in the groove, and the rotation torque can be transferred to the bolt 10 through the first force transfer part 2.
In this embodiment, the elastic member 6 is disposed between the first force transmission member 2 and the cavity 11 of the base 1, and the elastic member 6 gives the first force transmission member 2 a force approaching in the bolt direction, that is, the first force transmission member 2 is pressed on the bolt 10 by disposing the spring member 6, which is beneficial for the first force transmission member 2 to transmit the rotation torque to the bolt 10.
Third, example III
Referring to fig. 8, a third embodiment of a fastening tool for a heat dissipation wheel of a washing machine according to the present invention is mainly different from the first embodiment in that a gun body and a second setting torque transmission member are not provided, and other structures are the same as the first embodiment.
A fastening tool of a washing machine heat dissipation wheel is used for fastening a bolt 10 and a nut 20, and comprises a base 1, a first force transmission part 2 and a second force transmission part 3 which are arranged on the base 1, wherein the first force transmission part 2 can be matched with a nut 101 of the bolt 10, transmits the rotation torque on the base 1 to the bolt 10 and drives the bolt 10 to rotate and tighten; the second force transfer member 3 is adapted to engage with the nut 20 and to transfer a rotational torque on the base 1 to the nut 20 to drive the nut 20 to rotate and tighten, and a first set torque transfer member 4 is provided between the first force transfer member 2 and the base 1. Thus, the base 1 is rotated by manually giving a rotating moment to the base 1, and then the first force transmission part 2 and the second force transmission part 3 respectively transmit the rotating moment on the base 1 to the bolt 10 and the nut 20 to drive the bolt 10 and the nut 20 to rotate; when the rotation torque given to the bolt 10 by the first force transmission part 2 reaches a first set torque, the first force transmission part 2 idles relative to the base 1, namely the first force transmission part 2 and the bolt 10 stop rotating, and the bolt 10 is fastened in place; at this time, the base 1 is continuously rotated, the second force transmission component 3 continuously transmits the rotation torque to the nut 20, the nut 20 continuously rotates, and the installation is completed after the nut 20 is fastened in place.
Fourth, example four
Referring to fig. 9, a fourth embodiment of a fastening tool for a heat dissipation wheel of a washing machine according to the present invention is mainly different from the first embodiment in that the second setting torque transmission member is disposed at a different position, and other structures may be the same as the first embodiment.
A fastening tool of a washing machine heat dissipation wheel is used for fastening a bolt 10 and a nut 20, and comprises a base 1, a first force transmission part 2 and a second force transmission part 3 which are arranged on the base 1, wherein the first force transmission part 2 can be matched with a nut 101 of the bolt 10, transmits the rotation torque on the base 1 to the bolt 10 and drives the bolt 10 to rotate and tighten; the second force transmission component 3 can be matched with the nut 20, transmits the rotating torque on the base 1 to the nut 20, drives the nut 20 to rotate and tighten, and a first set torque transmission component 4 is arranged between the first force transmission component 2 and the base 1; the first setting torque transmission part 4 can set the maximum rotation torque which can be borne by the first setting torque transmission part 4 within a certain range, and the maximum rotation torque which can be borne by the first setting torque transmission part 4 is the torque required when the bolt 10 is fastened and is defined as a first setting torque; when the bolt 10 is fastened in place, the rotation torque given to the bolt 10 by the first force transmission member 2 reaches a first set torque, at this time, the first force transmission member 2 idles relative to the base 1, that is, the first force transmission member 2 is stationary, the rotation torque on the base 1 is not transmitted to the bolt 10, the rotation torque on the base 1 is transmitted to the second force transmission member 3, the second force transmission member 3 drives the nut to rotate and fasten, that is, the first set torque is smaller than the torque required for screwing the nut 20. Thus, the bolt 10 and the nut 20 can be fastened through one process, which is beneficial to the firmness of bolt fixation and improves the installation efficiency.
In this embodiment a second force transfer member 7 is arranged between the second force transfer member 3 and the base 1, and when the nut 20 is tightened in place, the rotational torque imparted by the second force transfer member 7 to the nut 20 reaches a second set torque, and the first set torque is smaller than the second set torque.
The following describes a fastening method of the fastening tool in the present embodiment, including the steps of:
A. the maximum transmission torque of the first setting torque transmission member 4 is set to the first setting torque.
Specifically, first, the maximum torque to be transmitted by the first setting torque transmission member 4 is set according to the torque required to fasten the bolt 10 to be fastened, and the first setting torque is the torque required to fasten the bolt 10 to be fastened.
At the same time, the maximum torque to be transmitted by the second torque transmission member 5 is set according to the torque required for fastening the nut 20 to be fastened, and the second set torque is the torque required for fastening the bolt 20 to be fastened.
The torque required for fastening the bolts 10 is the same for the same type of washing machine, i.e. the first setting torque does not need to be adjusted and set for the heat dissipation wheel bolts 10 of each washing machine, and only needs to be adjusted again when the model of the washing machine is changed.
B. The first force transfer member 1 is fitted to the nut 101 of the bolt 10 and the second force transfer member 2 is fitted to the nut 20.
Specifically, the first force transmission member 2 of the base 1 is fitted around the outer side of the nut 101 of the bolt 10, and the second force transmission member 3 is fitted around the outer side of the nut 20.
C. A rotational torque is imparted to the base 1 such that the first force transfer member 2 and the second force transfer member 3 transfer the rotational torque on the base 1 to the bolt 10 and the nut 20, respectively, driving the rotational mounting of the bolt 10 and the nut 20.
D. When the rotation torque given to the bolt 10 by the first force transmission part 2 reaches a first set torque, the first force transmission part idles relative to the base 1, and the bolt 10 is fastened in place; the rotational torque on the base 1 continues to be transmitted to the second force transmission member 3 and drives the nut 20 to be rotatably mounted.
Specifically, as the base 1 rotates, the bolt 10 and the nut 20 are screwed, the rotation torque on the base 1 reaches a first set torque, that is, the rotation torque given to the bolt 10 by the first force transmission member 2 reaches the first set torque, at this time, the first force transmission member 2 idles relative to the base 1, that is, the first force transmission member 2 and the bolt 10 stop rotating, and the bolt 10 is fastened in place; the base 1 now continues to rotate with the motor 301 and the second force transfer member 3 continues to transfer the rotational torque to the nut 20 and the nut 20 continues to rotate.
E. The nut 20 is tightened in place and the installation is complete.
Specifically, when the rotating torque on the base 1 reaches a second set torque, the rotating torque given to the nut 20 by the second force transmission component 3 reaches the second set torque, the second force transmission component 3 idles relative to the base 1, namely the second force transmission component 3 and the bolt 10 stop rotating, the base 1 can continue to rotate, at the moment, the nut 10 is fastened in place, the rotating torque is not given to the base 1 any more, and the installation is completed.
The foregoing is directed to preferred embodiments of the present invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the protection scope of the technical solution of the present invention.
Claims (10)
1. A fastening tool for a heat dissipation wheel of a washing machine is used for fastening a bolt and a nut of the heat dissipation wheel and is characterized by comprising a base, a first force transmission component and a second force transmission component, wherein the first force transmission component and the second force transmission component are arranged on the base and can be matched with a nut of the bolt, the second force transmission component can be matched with the nut, the first force transmission component and the second force transmission component respectively transmit rotating torque on the base to the bolt and the nut and drive the bolt and the nut to be rotatably installed, and a first set torque transmission component is arranged between the first force transmission component and the base; when the bolt is fastened in place, the rotating torque given to the bolt by the first force transmission component reaches a first set torque, at the moment, the first force transmission component idles relative to the base, and the rotating torque on the base is continuously transmitted to the second force transmission component and drives the nut to rotate and fasten.
2. The fastening tool of claim 1, wherein the first set torque transmission member includes a first outer race fixed with the base and a first inner race fixed with the first transmission member, the first inner race rotating with the first outer race when the rotational torque of the base is less than the first set torque; when the rotation torque of the base reaches a first set torque, the first inner ring idles relative to the first outer ring.
3. The fastening tool of claim 1, wherein the base is provided with a recess for securing the first setting torque transfer member, and an extension extending upwardly along an edge of the recess, the second force transfer member being located inwardly of the extension.
4. The fastening tool according to any one of claims 1 to 3, further comprising a gun body capable of outputting a rotational torque, wherein the base is provided with an input shaft capable of being matched with the gun body.
5. The fastening tool of claim 4, wherein a second set torque transfer member is provided between the input shaft and the gun body, and when the nut is fastened in place, the second force transfer member imparts a second set torque to the nut, and the base stops rotating.
6. The fastening tool of any one of claims 1 to 3, wherein the first force transfer member is a sleeve that can be fitted over the outside of the nut of the bolt.
7. The fastening tool of any one of claims 1 to 3 wherein the first force transfer member comprises a member body and a cylindrical shaft extending from the member body, the nut of the bolt being provided with a recess which is concave and mates with the end of the cylindrical shaft.
8. The fastening tool according to claim 7, wherein an elastic member is provided between the first force transmission member and the base, and the elastic member gives the first force transmission member a force to approach in the bolt direction.
9. The fastening tool of claim 1, wherein a second set torque transfer member is provided between the second force transfer member and the base, wherein the second force transfer member imparts a second set torque to the nut when the nut is tightened in place, and wherein the first set torque is less than the second set torque.
10. A method of fastening a fastening tool according to any one of claims 1 to 9, comprising the steps of:
A. setting the maximum transmission torque of the first setting torque transmission part as a first setting torque;
B. matching the first force transmission component with a nut of a bolt, and matching the second force transmission component with a nut;
C. giving a rotating moment to the base, so that the first force transmission component and the second force transmission component transmit the rotating moment on the base to the bolt and the nut respectively to drive the bolt and the nut to be rotatably installed;
D. when the rotating torque given to the bolt by the first force transmission component reaches a first set torque, the first force transmission component idles relative to the base, and the bolt is fastened in place; the rotary torque on the base is continuously transmitted to the second force transmission component and drives the nut to rotate and install;
E. and the nut is fastened in place, and the installation is finished.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710497560.6A CN107299490B (en) | 2017-06-27 | 2017-06-27 | Fastening tool and fastening method for heat dissipation wheel of washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710497560.6A CN107299490B (en) | 2017-06-27 | 2017-06-27 | Fastening tool and fastening method for heat dissipation wheel of washing machine |
Publications (2)
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| CN107299490B true CN107299490B (en) | 2022-03-15 |
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| CN1250708A (en) * | 1998-09-22 | 2000-04-19 | 约翰·K·琼克斯 | Electric tools |
| CN1575931A (en) * | 2003-07-23 | 2005-02-09 | 约翰·K·琼克斯 | A method of tightening and loosening an object |
| CN101062555A (en) * | 2006-04-28 | 2007-10-31 | 尤尼克斯公司 | Power-driven torque intensifier |
| CN101342689A (en) * | 2007-06-01 | 2009-01-14 | 约翰·K·琼克斯 | A fluid operated torque tool for and a method of tightening a nut on a plate on railroad crossings |
| WO2015152728A1 (en) * | 2014-04-04 | 2015-10-08 | Hytorc Norge As | Interface device for tensioning a nut and a bolt assembly |
| JP2016133197A (en) * | 2015-01-21 | 2016-07-25 | 東洋発條工業株式会社 | Metal washer and fastening structure |
| CN205628976U (en) * | 2016-04-14 | 2016-10-12 | 徐长军 | Electronic spiral orifice plate evener |
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| CN1250708A (en) * | 1998-09-22 | 2000-04-19 | 约翰·K·琼克斯 | Electric tools |
| CN1575931A (en) * | 2003-07-23 | 2005-02-09 | 约翰·K·琼克斯 | A method of tightening and loosening an object |
| CN101062555A (en) * | 2006-04-28 | 2007-10-31 | 尤尼克斯公司 | Power-driven torque intensifier |
| CN101342689A (en) * | 2007-06-01 | 2009-01-14 | 约翰·K·琼克斯 | A fluid operated torque tool for and a method of tightening a nut on a plate on railroad crossings |
| WO2015152728A1 (en) * | 2014-04-04 | 2015-10-08 | Hytorc Norge As | Interface device for tensioning a nut and a bolt assembly |
| JP2016133197A (en) * | 2015-01-21 | 2016-07-25 | 東洋発條工業株式会社 | Metal washer and fastening structure |
| CN205628976U (en) * | 2016-04-14 | 2016-10-12 | 徐长军 | Electronic spiral orifice plate evener |
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| CN107299490A (en) | 2017-10-27 |
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Effective date of registration: 20220214 Address after: 266300 in Haier Industrial Park, Haier Avenue, Jiulong sub district office, Jiaozhou City, Qingdao City, Shandong Province Applicant after: Qingdao Jiaozhou Haier washing Electric Appliance Co.,Ltd. Applicant after: Haier Zhijia Co., Ltd Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Applicant before: QINGDAO HAIER WASHING MACHINE Co.,Ltd. |
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