CN219455365U - Belt pulley nut fastening torque measuring device of drum washing machine - Google Patents
Belt pulley nut fastening torque measuring device of drum washing machine Download PDFInfo
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- CN219455365U CN219455365U CN202321638619.6U CN202321638619U CN219455365U CN 219455365 U CN219455365 U CN 219455365U CN 202321638619 U CN202321638619 U CN 202321638619U CN 219455365 U CN219455365 U CN 219455365U
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- washing machine
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- drum washing
- tightening torque
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Abstract
The utility model discloses a device for measuring the tightening torque of a pulley nut of a drum washing machine, which belongs to the field of torque measurement and solves the problem that the tightening torque of the pulley nut cannot be accurately detected. The utility model is mainly used for accurately detecting whether the tightening torque of the pulley nut meets the preset requirement.
Description
Technical Field
The utility model relates to torque measurement, in particular to a device for measuring tightening torque of a pulley nut of a drum washing machine.
Background
The dehydration drum of the drum washing machine is generally connected with a driving motor in a transmission way through a belt transmission way, the dehydration drum and a belt pulley are required to be coaxially fixed, a connecting shaft is arranged on the dehydration drum, and then the belt pulley is fastened on the connecting shaft through a belt pulley nut, so that the belt pulley drives the dehydration drum to rotate through the connecting shaft. Therefore, on the production line of the drum washing machine, the fastening effect of the belt pulley needs to be quantitatively detected, the belt pulley is not easy to loosen relative to the connecting shaft in the subsequent long-term use of the drum washing machine, the fastening moment of the belt pulley nut needs to be measured, and the belt pulley can be stably fastened on the connecting shaft only when the fastening moment of the belt pulley nut meets the preset requirement. Because the pulley nut is fixed at the end of the connecting shaft, and when torque is directly applied to the pulley nut by using the torque wrench for detection, the torque generated by the torque wrench can be transmitted to the connecting shaft through the pulley nut, so that the connecting shaft and the pulley nut rotate together, and whether the fastening torque of the pulley nut meets the preset requirement cannot be accurately detected.
Disclosure of Invention
The utility model aims to provide the device for measuring the tightening torque of the pulley nut of the drum washing machine, solve the problem that the tightening torque of the pulley nut cannot be accurately detected, and facilitate accurate detection of whether the tightening torque of the pulley nut meets the preset requirement.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a drum type washing machine pulley nut tightening torque measuring device, includes moment of torsion spanner and stop spanner, moment of torsion spanner includes first spanner portion, locates first spanner portion and the adapter sleeve of being connected with pulley nut and locates first spanner portion and be used for showing the display part of moment of torsion size, stop spanner includes second spanner portion and locates two at least connectors of second spanner portion, and the connector cooperates with the hub hole of belt pulley and restricts the belt pulley rotation, and the connector is located the one end of second spanner portion, and the distance L of the other end of second spanner portion to the connector is greater than the connector to the high distance H of placing drum type washing machine's mesa, makes the other end of second spanner portion support in the mesa and splines.
After the technical scheme is adopted, the utility model has the following advantages:
according to the utility model, the stop wrench is matched with the hub hole of the belt pulley through the connector, so that the belt pulley can be limited to rotate, when the torque wrench applies torque to the belt pulley nut to detect, the belt pulley nut can be prevented from driving the belt pulley to rotate together, the detection result of the torque wrench is more similar to the actual fastening torque of the belt pulley nut, the detection precision of the torque wrench is improved, and whether the fastening torque of the belt pulley nut meets the preset requirement can be accurately detected; in addition, the stop spanner is provided with at least two connectors, so that the stop cooperation between the stop spanner and the belt pulley is more stable, and the possibility of rotation of the belt pulley is reduced; because the distance L between the two ends of the second wrench part is greater than the height H from the connector to the table top, the other end of the second wrench part automatically abuts against the table top in the detection process, so that the rotation of the belt pulley is limited; when L is less than H, the second spanner portion cannot be contacted with the table top, and the belt pulley rotation can be limited only by fixing the second spanner portion through manual work or other positioning devices, so that the labor cost can be increased or the fixing process of the second spanner portion can be increased, and the detection efficiency can be remarkably reduced.
Further, the second wrench part is provided with an avoidance channel which is used for avoiding the connecting sleeve in the axial direction of the pulley nut, and the connecting sleeve penetrates through the avoidance channel to be connected with the pulley nut. By adopting the technical scheme, the connection position of the second spanner part and the belt pulley does not need to be specially adjusted during detection, the quick connection of the connecting sleeve and the belt pulley nut is facilitated, and the detection efficiency can be improved.
Furthermore, the avoidance channel is an avoidance through hole, and the connectors are circumferentially distributed on the periphery of the avoidance through hole. By adopting the technical scheme, the stress points of the belt pulley can be uniformly dispersed on the periphery of the central shaft of the belt pulley, so that the limiting force on the belt pulley is uniform, and the possibility of damage of the belt pulley is reduced.
Further, the connectors are uniformly distributed on the periphery of the avoidance through hole. By adopting the technical scheme, the stress of the belt pulley is more uniform, and the possibility of damage of the belt pulley is further reduced.
Further, the second wrench part is provided with a hollowed-out through hole.
Further, the second spanner portion is equipped with the strengthening rib between fretwork through-hole and dodging the passageway. By adopting the technical scheme, the strength of the second spanner part can be improved, so that the second spanner part can bear larger acting force, the limitation on the belt pulley is firmer and more stable, and whether the fastening moment of the belt pulley nut meets the preset requirement or not can be accurately detected.
Further, an open slot is formed in one end of the second wrench part, and the open slot forms an avoidance channel. By adopting the technical scheme, the connecting sleeve can enter or leave the avoidance channel from the opening of the opening groove, so that the connecting sleeve is more convenient to be connected with the pulley nut, and the detection efficiency is improved.
Further, the periphery of the connector is provided with a limiting step, and the limiting step abuts against the end face of the belt pulley to limit. By adopting the technical scheme, after the connector is matched with the hub hole, the limiting step is abutted with the end face of the belt pulley, so that the shaking amplitude of the connector in the hub hole can be reduced, the rotation floating of the belt pulley after being limited is further reduced, and the detection result of the torque wrench is more accurate.
Further, the display part is a mechanical dial or an electronic screen.
Further, the connecting sleeve is provided with an inner hexagonal blind hole matched with the pulley nut.
Drawings
The utility model is further described below with reference to the accompanying drawings:
fig. 1 is a schematic view showing a structure of a dehydrating drum in a drum washing machine;
FIG. 2 is a sectional view of a dehydrating drum in a drum washing machine;
FIG. 3 is a schematic view showing a structure of a stopping wrench for a drum washing machine in cooperation with a pulley according to the present utility model;
FIG. 4 is a schematic view of a stopping wrench for a drum washing machine according to the present utility model;
FIG. 5 is a partial cross-sectional view of a stopping wrench for a drum washing machine according to the present utility model;
FIG. 6 is a rear view of the drum washing machine of the present utility model placed on a table top;
fig. 7 is a front view of an open slot in the stop wrench of the present utility model.
Reference numerals: 1 belt pulley, 11 belt pulley nut, 12 hub hole, 13 connecting axle, 2 stop spanner, 21 connector, 211 spacing step, 22 dodge passageway, 221 open slot, 23 fretwork through-hole, 24 strengthening rib, 3 dehydration cylinder, 4 cylinder washing machine, 5 mesa.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments.
The terms "first," "second," and the like in the description and in the claims, if any, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order, and do not necessarily indicate a "first" even if a "second" is used before a certain feature. It should be understood that in the present utility model, "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. It should be understood that in the present utility model, "plurality" means two or more. "and/or" is merely an association relationship describing an association object, meaning that three relationships may exist, for example, X and/or Y may represent: x alone, X and Y together, and Y alone. The character "/" generally indicates that the context-dependent object is an "or" relationship. "comprising X, Y and Z", "comprising X, Y, Z" means that all three of X, Y, Z comprise, "comprising X, Y or Z" means that one of the three comprises X, Y, Z, and "comprising X, Y and/or Z" means that any one or any two or three of the three comprise X, Y, Z.
The technical scheme of the utility model is described in detail below by specific examples. The following specific embodiments may be combined with or replaced with each other according to actual situations, and the same or similar concepts or processes may not be described in detail in some embodiments.
As shown in fig. 1 to 5, the utility model provides a device for measuring tightening torque of a pulley nut of a drum washing machine, which comprises a torque wrench and a stop wrench 2, wherein the torque wrench comprises a first wrench part, a connecting sleeve arranged on the first wrench part and connected with the pulley nut 11, and a display part arranged on the first wrench part and used for displaying the torque, the connecting sleeve is provided with a hexagon socket hole matched with the pulley nut 11, and of course, it is understood that the connecting sleeve can be provided with matched holes according to different structures of the pulley nut 11; the display part may be a mechanical dial or an electronic screen, the stop wrench 2 includes a second wrench part and at least two connectors 21 disposed on the second wrench part, the connectors 21 cooperate with the hub hole 12 of the pulley 1 to limit the rotation of the pulley 1, and the connectors 21 are disposed at one end of the second wrench part.
As shown in fig. 1 to 3, the drum washing machine 4 in this embodiment includes a dewatering drum 3, a connecting shaft 13 is disposed on the dewatering drum 3, the pulley 1 is fastened to the connecting shaft 13 through a pulley nut 11, the pulley 1 drives the dewatering drum 3 to rotate through the connecting shaft 13, so that the pulley nut 11 rotates along with the pulley 1, the stop wrench 2 cooperates with a hub hole 12 of the pulley 1 through a connector 21 to limit the rotation of the pulley 1, when the torque wrench applies torque to the pulley nut 11 to detect, the pulley nut 11 can be prevented from driving the pulley 1 to rotate along with the rotation, so that the detected result of the torque wrench is closer to the actual fastening torque of the pulley nut 11, the detection precision of the torque wrench is improved, and whether the fastening torque of the pulley nut 11 meets the preset requirement can be accurately detected.
As shown in fig. 4 and fig. 5, in this embodiment, the second wrench part is provided with an avoidance channel 22 that is configured to avoid the connection sleeve in the axial direction of the pulley nut 11, and the connection sleeve passes through the avoidance channel 22 to be connected with the pulley nut 11, so that it is unnecessary to purposely adjust the connection position between the second wrench part and the pulley 1 during detection, which is beneficial to quick connection between the connection sleeve and the pulley nut 11, and can improve detection efficiency. Of course, in order to make the connection between the connecting sleeve and the pulley nut 11 more convenient, as shown in fig. 7, in other embodiments, one end of the second wrench part may also be provided with an open slot 221, where the open slot 221 forms the avoidance channel 22, and the connecting sleeve may enter or leave the avoidance channel 22 from the opening of the open slot 221, so that the connection between the connecting sleeve and the pulley nut 11 is more convenient, and the detection efficiency is improved.
As shown in fig. 4 and fig. 5, in order to improve the stability of the fit between the stop wrench 2 and the pulley 1, in this embodiment, the stop wrench 2 is provided with at least two connectors 21, the avoidance channel 22 is a avoidance through hole, the connectors 21 are circumferentially distributed around the periphery of the avoidance through hole, and the connectors 21 are uniformly distributed around the periphery of the avoidance through hole, and meanwhile, the connectors 21 are matched with the pulley 1, so that the contact area between the stop wrench 2 and the pulley 1 can be increased, the force applied by each connector 21 is further dispersed, the possibility that the connectors 21 are bent or broken can be reduced, and meanwhile, the stop fit between the stop wrench 2 and the pulley 1 can be more stable, and the possibility that the pulley 1 rotates can be reduced; in addition, the connectors 21 are uniformly distributed around the periphery of the avoidance through holes, so that stress points of the belt pulley 1 can be uniformly dispersed on the periphery of the central shaft of the belt pulley 1, the limiting force on the belt pulley 1 is uniform, and the possibility of damage to the belt pulley 1 is reduced.
As shown in fig. 5, in this embodiment, the outer periphery of the connector 21 is provided with a limiting step 211, the limiting step 211 abuts against the end surface of the pulley 1 to limit, after the connector 21 is matched with the hub hole 12, the limiting step 211 abuts against the end surface of the pulley 1, so that the shaking amplitude of the connector 21 in the hub hole 12 can be reduced, and further the rotation and floating of the pulley 1 after being limited can be reduced, so that the detection result of the torque wrench is more accurate.
As shown in fig. 6, in order to reduce the labor cost of the detection, in this embodiment, the distance L from the other end of the second wrench part to the connector 21 is greater than the height distance H from the connector 21 to the table top 5 on which the drum washing machine 4 is placed, and in the detection process, the other end of the second wrench part automatically abuts against the table top 5, so as to limit the rotation of the belt pulley 1, in this embodiment, the automatic fixing of the stop wrench 2 can be realized in the detection process, no separate fixing of the stop wrench 2 is required, the single-person single-hand detection is facilitated, and the labor cost of the detection process can be reduced; when L is less than H, the second wrench part cannot be contacted with the table top 5, and the rotation of the belt pulley 1 can be limited only by fixing the second wrench part through manual work or other positioning devices, so that the labor cost can be increased or the fixing process of the second wrench part can be increased, and the detection efficiency can be obviously reduced.
As shown in fig. 3 and fig. 4, in this embodiment, the second wrench part is provided with a hollow through hole 23, and the second wrench part is provided with a reinforcing rib 24 between the hollow through hole 23 and the avoidance channel 22, so that the strength of the second wrench part can be improved, the second wrench part can bear larger acting force, the limitation on the belt pulley 1 is firmer and more stable, and the accurate detection of whether the fastening torque of the belt pulley nut 11 meets the preset requirement is facilitated.
In addition to the preferred embodiments described above, other embodiments of the present utility model are also contemplated as falling within the scope of the claimed utility model, as well as all other embodiments that may be made by one of ordinary skill in the art without making any inventive effort based on the embodiments of the present utility model.
Claims (10)
1. The utility model provides a drum type washing machine belt pulley nut tightening torque measuring device, includes moment of torsion spanner and stop spanner, moment of torsion spanner includes first spanner portion, locates first spanner portion and the adapter sleeve of being connected with belt pulley nut and locates first spanner portion and be used for showing the display part of moment of torsion size, its characterized in that, stop spanner includes second spanner portion and locates two at least connectors of second spanner portion, and the connector cooperates with the hub hole of belt pulley and restricts the belt pulley rotation, and the connector is located the one end of second spanner portion, and the distance L of the other end of second spanner portion to the connector is greater than the connector to the high distance H of placing drum type washing machine's mesa, makes the other end of second spanner portion support in the mesa and splines.
2. The device for measuring the tightening torque of the pulley nut of the drum washing machine according to claim 1, wherein the second wrench part is provided with a avoiding passage for avoiding the connecting sleeve in the axial direction of the pulley nut, and the connecting sleeve passes through the avoiding passage to be connected with the pulley nut.
3. The device for measuring the tightening torque of the pulley nut of the drum washing machine according to claim 2, wherein the avoidance channel is an avoidance through hole, and the connectors are circumferentially distributed on the periphery of the avoidance through hole.
4. The measuring device for tightening torque of pulley nuts in drum washing machine as claimed in claim 3, wherein said connection heads are uniformly distributed at the outer circumference of the avoidance through hole.
5. The measuring device for tightening torque of pulley nut in drum washing machine as claimed in claim 2, wherein the second wrench part is provided with a hollowed-out through hole.
6. The device for measuring the tightening torque of the pulley nut of the drum washing machine according to claim 5, wherein the second spanner portion is provided with a reinforcing rib between the hollowed-out through hole and the avoidance passage.
7. The measuring device for tightening torque of pulley nut in drum washing machine as claimed in claim 1, wherein one end of the second wrench part is provided with an open slot, and the open slot forms a dodging channel.
8. The device for measuring the tightening torque of the pulley nut of the drum washing machine according to claim 1, wherein a limiting step is arranged on the periphery of the connector and abuts against the end face of the pulley to limit.
9. The measuring device for tightening torque of pulley nut in drum washing machine according to claim 1, wherein the display part is a mechanical dial or an electronic screen.
10. The device for measuring tightening torque of a pulley nut in a drum washing machine as claimed in claim 1, wherein the connecting sleeve is provided with an inner hexagonal blind hole engaged with the pulley nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321638619.6U CN219455365U (en) | 2023-06-27 | 2023-06-27 | Belt pulley nut fastening torque measuring device of drum washing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321638619.6U CN219455365U (en) | 2023-06-27 | 2023-06-27 | Belt pulley nut fastening torque measuring device of drum washing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219455365U true CN219455365U (en) | 2023-08-01 |
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ID=87415902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321638619.6U Active CN219455365U (en) | 2023-06-27 | 2023-06-27 | Belt pulley nut fastening torque measuring device of drum washing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219455365U (en) |
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2023
- 2023-06-27 CN CN202321638619.6U patent/CN219455365U/en active Active
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