CN220613647U - Gear clamping mechanism and gear torque measuring device - Google Patents
Gear clamping mechanism and gear torque measuring device Download PDFInfo
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- CN220613647U CN220613647U CN202320246245.7U CN202320246245U CN220613647U CN 220613647 U CN220613647 U CN 220613647U CN 202320246245 U CN202320246245 U CN 202320246245U CN 220613647 U CN220613647 U CN 220613647U
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- clamping mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 48
- 238000012360 testing method Methods 0.000 claims abstract description 29
- 210000000078 claw Anatomy 0.000 claims description 27
- 238000005259 measurement Methods 0.000 claims description 4
- 238000000034 method Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The embodiment of the utility model provides a gear clamping mechanism and a gear torque measuring device, which comprise a box body, two movable check blocks and two screws, wherein the side wall of the box body is provided with a threaded hole, the top of the box body is provided with a convex connector, the connector is used for being connected with torque testing equipment/instruments, the two movable check blocks are positioned in the box body and are symmetrically arranged, the screws are provided with external threads matched with the threaded hole of the box body, one end of each screw is connected with the back surface of each movable check block, the other end of each screw passes through the threaded hole and is arranged outside the box body, and the screws can rotate relative to the movable check blocks. According to the utility model, the movable stop block in the box body is moved by rotating the screw rod, so that the box body can clamp gears with different sizes within a certain size range, a large number of gears can be conveniently tested, a clamping mechanism is not required to be customized according to the size of the gears, the cost is reduced, and the efficiency is improved.
Description
Technical Field
The utility model relates to the technical field of machinery, in particular to a gear clamping mechanism and a gear torque measuring device.
Background
The gear and the shaft often adopt an interference fit mode to realize the function of transmitting torque or certain axial force, and the maximum torque which can be transmitted by the interference fit is often different from the actual value through theoretical calculation. In order to accurately measure the maximum torque which can be transmitted by the interference fit of the gear and the shaft, the gear needs to be clamped by a clamping mechanism, and then the torque is tested by a torque measuring device.
However, the clamping mechanism is usually required to be customized according to the size of the gear, so that the cost is high, the period is long, and the clamping tightness degree is inconvenient to adjust.
Disclosure of Invention
In view of the above problems, the embodiments of the present utility model provide a gear clamping mechanism and a gear torque measuring device, so as to solve the problems that the conventional clamping mechanism is usually required to be customized according to the size of a gear, and has high cost, long period, and inconvenience in adjusting the tightness degree of clamping.
The embodiment of the utility model discloses a gear clamping mechanism, which is used for clamping a tested gear and comprises the following components:
the box body is provided with a threaded hole on the side wall, a convex connector is arranged on the top, and the connector is used for being connected with torque testing equipment/instruments;
the two movable stop blocks are positioned in the box body and are symmetrically arranged;
the two screws are provided with external threads matched with the threaded holes of the box body, one end of each screw is connected with the back surface of the movable stop block, the other end of each screw passes through the threaded holes to be arranged outside the box body, and the screws can rotate relative to the movable stop blocks;
when the screw rotates in the forward direction, the two movable stop blocks are close to each other, so that the tested gear is clamped through the front surface of the movable stop blocks.
Optionally, the device further comprises a claw nut, wherein the claw nut is provided with a threaded hole, the claw nut is positioned outside the box body, and the claw nut is sleeved on the external thread of the screw rod through the threaded hole of the claw nut;
after the movable stop block clamps the tested gear, the claw nut is rotated to enable the claw nut to abut against the outer surface of the box body to lock the screw.
Optionally, a limit groove is formed in the side wall, parallel to the screw, of the box body, and a limit block matched with the limit groove is arranged on the side surface of the movable stop block;
and when the screw rotates, the limiting block of the movable stop block moves along the limiting groove.
Optionally, when the screw rotates in the forward direction, one end of the screw abuts against the back surface of the movable stop block to push the movable stop block to approach the other movable stop block;
when the screw is rotated in the reverse direction, one end of the screw is away from the back surface of the movable stopper.
Optionally, the limit groove is a rectangular groove, and the length direction of the rectangular groove is parallel to the screw rod.
Optionally, the device further comprises an adjusting column, wherein one end of the adjusting column is provided with external threads, the side surface of the movable stop block is provided with a threaded hole matched with the external threads of the adjusting column, one end of the adjusting column is arranged in the threaded hole of the movable stop block through the external threads of the adjusting column, and the other end of the adjusting column is arranged outside the movable stop block to form a limiting block.
Optionally, the front surface of the movable block is a tooth surface.
Optionally, the front surface of the movable stop block is a V-shaped surface or an arc-shaped surface.
Optionally, the measured gear is a gear on a gear shaft in the 3D printer.
The utility model also discloses a gear torque measuring device, which comprises a torque testing device/instrument and any one of the gear clamping mechanisms;
the torque testing device/instrument is provided with a containing part, and the containing part is used for containing at least one part of the connector of the gear clamping mechanism so as to detachably connect the torque testing device/instrument to the gear clamping mechanism.
The embodiment of the utility model has the following advantages: through the movable stop dog in the rotatory T letter screw rod removal box, quick clamp when realizing the gear torsion test is adorned with quick dismantlement for the box can the centre gripping not unidimensional gear in the certain size range, and the big batch gear inspection of being convenient for need not to order fixture according to the size of gear, reduce cost, raise the efficiency. Meanwhile, the force provided by the clamping of the movable stop block is easy to adjust, and the measured gear is not easy to loosen due to the fact that the force provided by the clamping of the movable stop block is large.
Drawings
FIG. 1 is a schematic illustration of a gear clamping mechanism according to an embodiment of the present utility model;
fig. 2 is a second schematic diagram of a gear clamping mechanism according to an embodiment of the present utility model, and fig. 3 is a third schematic diagram of a gear clamping mechanism according to an embodiment of the present utility model.
Reference numerals:
110-box body, 111-threaded hole of box body, 112-limit groove, 120-connector, 130-movable stop block, 140-screw, 150-claw nut and 160-adjusting column;
210-a gear to be tested and 220-a gear shaft.
Detailed Description
In order that the above-recited objects, features and advantages of the present utility model will become more readily apparent, a more particular description of the utility model will be rendered by reference to the appended drawings and appended detailed description.
Referring to fig. 1 and 2, fig. 1 shows one of the schematic structural diagrams of a gear clamping mechanism provided in an embodiment of the present utility model, and fig. 2 shows the second schematic structural diagram of a gear clamping mechanism provided in an embodiment of the present utility model. The gear clamping mechanism is used to clamp the gear under test 210 so that torque measurement equipment can be used to measure the maximum torque that can be transferred between the gear and the shaft to which it is connected. The gear clamping mechanism includes a housing 110, two movable stops 130, and two screws 140.
The screw 140 may be a T-shaped screw, an L-shaped screw, a 9-shaped screw, or the like, and of course, other screws or bolts may be used, and may be specifically set according to actual needs.
The top of the box 110 is provided with a connector 120 protruding outwards, the connector 120 is used for being connected with a torque testing device/instrument, the torque testing device/instrument is provided with a containing part, for example, an output end/output shaft of the torque testing device/instrument is provided with a containing part, the containing part is used for containing at least one part of the connector 120 of the gear clamping mechanism, or the connector 120 is provided with a containing part, through which at least one part of the output end/output shaft of the torque testing device/instrument is contained, so that the torque testing device/instrument can be detachably connected to the gear clamping mechanism, for example, the connector 120 can be a hexagon head/pentagon head, the containing part is a corresponding hexagon head/pentagon head, and at least one part of the hexagon head/pentagon head is contained through the hexagon head/pentagon head, so that the torque testing device/instrument can be detachably connected to the gear clamping mechanism. The shape of the output end and the shape of the receiving portion of the connector/the torque testing device/the torque testing instrument can be set according to actual needs, and the output end and the receiving portion are not limited in the embodiment of the utility model.
The two movable stop blocks 130 are located in the box body 110 and are symmetrically arranged, threaded holes 111 are formed in the side wall of the box body 110, particularly, threaded holes are formed in the side wall, facing the back face, of the movable stop blocks 130, of the screw rod 140, external threads matched with the threaded holes 111 are formed in the screw rod 140, the screw rod 140 is assembled on the side wall of the box body 110 through the external threads and the threaded holes 111, one end of the screw rod 140 is connected with the back face of the movable stop blocks 130 in the box body 110, the other end of the screw rod 140 is arranged outside the box body 110, the screw rod 140 is movably connected with the movable stop blocks 130, and the screw rod 140 can rotate relative to the movable stop blocks 130.
Specifically, when the gear 210 to be tested needs to be clamped, the gear 210 to be tested needs to be placed at a position between the two movable blocks 130, and then the screw 140 is rotated forward, so that the screw 140 drives the movable blocks 130 to approach the gear 210 to be tested (the other movable block 130) until the front surfaces of the two movable blocks 130 are contacted with the tooth surfaces of the gear 210 to be tested and clamped, so as to clamp the gear 210 to be tested.
After the tested gear 210 is clamped, the gear shaft 220 on the tested gear 210 passes through the bottom of the box 110 and is arranged outside the box 110, the gear shaft 220 on the tested gear 210 needs to be clamped by other measuring equipment/clamping equipment, after the gear shaft 220 on the tested gear 210 is clamped, the connector 120 at the top of the box 110 is connected by the torque measuring equipment and rotates, and then the box 110 and the tested gear 210 clamped in the box 110 can be driven by the connector 120 to rotate together, and as the gear shaft 220 is clamped, the maximum torque between the tested gear 210 and the gear shaft 220 can be measured when the gear and the gear shaft 220 skid.
After the torque measurement is completed, the screw 140 can be reversely rotated to drive the movable stop 130 away from the gear 210 to be measured.
In the embodiment of the utility model, the movable stop 130 in the box body 110 is moved by rotating the screw 140, so that the box body 110 can clamp gears with different sizes within a certain size range, a large number of gears are convenient to test, a clamping mechanism is not required to be customized according to the sizes of the gears, the cost is reduced, and the efficiency is improved. Meanwhile, the force provided by the clamping of the movable stop 130 is easy to adjust, and the measured gear 210 is not easy to loosen due to the large force.
On the basis of the above embodiments, modified embodiments of the above embodiments are proposed, and it is to be noted here that only the differences from the above embodiments are described in the modified embodiments for the sake of brevity of description.
In an embodiment of the present utility model, the gear clamping mechanism further includes a claw nut 150, the claw nut 150 is provided with a threaded hole, the claw nut 150 is located outside the box 110, and the claw nut 150 is sleeved on the external thread of the screw 140 through the threaded hole thereof.
Specifically, after the movable stopper 130 clamps the measured gear 210 by rotating the screw 140 in the forward direction, one end surface of the claw nut 150 may abut against the outer surface of the case 110 by rotating the claw nut 150, so as to lock the screw 140, and prevent the measured gear 210 from loosening during the torque measurement process.
Referring to fig. 2, a side wall of the case 110 parallel to the screw 140 is provided with a limit groove 112, a side surface of the movable stopper 130 is provided with a limit block adapted to the limit groove 112, and as shown in the figure, the case 110 is provided with two limit grooves 112, and each movable stopper 130 is provided with two limit blocks.
When the screw 140 rotates, the stopper of the movable stopper 130 moves along the limiting groove 112, preventing the movable stopper 130 from being deviated during the clamping process of the gear 210 to be tested.
In one embodiment of the present utility model, the screw 140 and the movable block 130 are connected in two ways, one is that an accommodating cavity is provided on the back of the movable block 130 to accommodate one end of the screw 140, and the screw 140 can rotate relative to the movable block 130, when the screw 140 rotates forward/backward, the screw 140 drives the movable block 130 to move forward or backward, and the connection between the screw 140 and the movable block 130 is not broken.
In the other type of contact connection, one end of the screw 140 is only abutted against the back surface of the movable stopper 130, and when the screw 140 moves in a direction away from the movable stopper 130, one end of the screw 140 is separated from the back surface of the movable stopper 130, and the connection between the screw 140 and the movable stopper 130 is disconnected. Specifically, when the screw 140 rotates in the forward direction, one end of the screw 140 abuts against the back surface of the movable stop block 130, so as to push the movable stop block 130 to approach the other movable stop block 130, and when the screw 140 rotates in the reverse direction, one end of the screw 140 is far away from the back surface of the movable stop block 130, the movable stop block 130 is kept in place and is not moved, at this time, a limiting block located in the limiting groove 112 can be moved outside the box 110, and the movable stop block 130 is driven to move in the box 110 by the limiting block, so that the movable stop block 130 is reset.
In an embodiment of the present utility model, the limiting groove 112 is a rectangular groove, and the length direction of the rectangular groove is parallel to the screw 140, so that the movable stop 130 moves along the length direction of the rectangular groove in the moving process, and the movable stop 130 is prevented from being offset in the clamping process of the gear 210 to be tested. Of course, the limiting groove 112 may be any other groove, and may be specifically configured according to practical needs, and the present utility model is not limited thereto, for example, the limiting groove 112 is an elliptical groove.
In an embodiment of the present utility model, the gear clamping mechanism further includes an adjusting post 160, one end of the adjusting post 160 is provided with an external thread, a side surface of the movable stopper 130 is provided with a threaded hole adapted to the external thread of the adjusting post 160, one end of the adjusting post 160 is disposed in the threaded hole of the movable stopper 130 through the external thread thereof, and the other end is disposed outside the movable stopper 130 to form a stopper.
In an embodiment of the present utility model, the front surface of the movable block 130 may be a tooth surface, so as to facilitate clamping the tooth surface of the gear 210 under test.
In an embodiment of the present utility model, the front surface of the movable block 130 may be a V-shaped surface, so as to clamp the tooth surface of the gear 210 under test.
In an embodiment of the present utility model, the front surface of the movable block 130 may be an arc surface, so as to clamp the tooth surface of the gear 210 to be tested.
In an embodiment of the present utility model, the measured gear may be a gear on a gear shaft in the 3D printer.
Specifically, in the using process of the 3D printer, a gear (to-be-measured gear) and another bearing are generally required to clamp the consumable, so that the gear clamps the consumable, and the driving gear can push the consumable to move back and forth depending on the rotation direction of the gear. Therefore, the 3D printer has certain requirements on the maximum torque between the gear and the gear shaft, and the situation that the gear and the gear shaft are easy to slip due to the fact that the maximum torque between the gear and the gear shaft is small, so that uneven discharging or breakage of the 3D printer occurs in the using process is avoided.
Therefore, before the gear and the gear shaft are installed in the 3D printer, the gear is clamped by the gear clamping mechanism, the maximum torque between the gear and the gear shaft is measured by the torque testing equipment/instrument, and the maximum torque between the gear and the gear shaft is ensured to meet the use requirement of the 3D printer.
In the above embodiment, the gear clamping mechanism can realize quick clamping and quick disassembly in the torsion test of the tested gear 210, and the clamping mechanism does not depend on external tools, so that the clamping mechanism can provide large force and is not easy to loosen, and is convenient for measuring the maximum torque between the gear and the gear shaft.
The utility model also discloses a gear torque measuring device, which comprises a torque testing device/instrument and a gear clamping mechanism, wherein the gear clamping mechanism comprises:
the torque testing device/instrument comprises a box body, wherein a threaded hole is formed in the side wall of the box body, a protruding connector is arranged at the top of the box body, and a containing part is arranged on the torque testing device/instrument and used for containing at least one part of the connector so as to detachably connect the torque testing device/instrument to the gear clamping mechanism;
the two movable stop blocks are positioned in the box body and are symmetrically arranged;
the two screws are provided with external threads matched with the threaded holes of the box body, one end of each screw is connected with the back surface of the movable stop block, the other end of each screw passes through the threaded holes to be arranged outside the box body, and the screws can rotate relative to the movable stop blocks;
when the screw rotates in the forward direction, the two movable stop blocks are close to each other, so that the tested gear is clamped through the front surface of the movable stop blocks.
In one embodiment of the utility model, the gear clamping mechanism further comprises a claw nut, wherein the claw nut is provided with a threaded hole, the claw nut is positioned outside the box body, and the claw nut is sleeved on the external thread of the screw rod through the threaded hole of the claw nut;
after the movable stop block clamps the tested gear, the claw nut is rotated to enable the claw nut to abut against the outer surface of the box body to lock the screw.
In one embodiment of the utility model, a limit groove is arranged on the side wall of the box body, which is parallel to the screw rod, and a limit block matched with the limit groove is arranged on the side surface of the movable stop block;
and when the screw rotates, the limiting block of the movable stop block moves along the limiting groove.
In one embodiment of the present utility model,
when the screw rotates in the forward direction, one end of the screw abuts against the back surface of the movable stop block to push the movable stop block to approach the other movable stop block;
when the screw is rotated in the reverse direction, one end of the screw is away from the back surface of the movable stopper.
In an embodiment of the utility model, the limit groove is a rectangular groove, and a length direction of the rectangular groove is parallel to the screw.
In an embodiment of the utility model, the gear clamping mechanism further comprises an adjusting column, one end of the adjusting column is provided with external threads, a threaded hole matched with the external threads of the adjusting column is formed in the side face of the movable stop block, one end of the adjusting column is arranged in the threaded hole of the movable stop block through the external threads of the adjusting column, and the other end of the adjusting column is arranged outside the movable stop block to form a limiting block.
In an embodiment of the utility model, the front surface of the movable block is a tooth surface.
In an embodiment of the utility model, the front surface of the movable stop block is a V-shaped surface.
In an embodiment of the utility model, a front surface of the movable block is an arc surface.
In an embodiment of the utility model, the measured gear is a gear on a gear shaft in the 3D printer.
For the gear torque measuring device embodiment, the description is relatively simple as it is substantially similar to the gear clamping mechanism embodiment, with reference to the partial description of the gear clamping mechanism embodiment.
The embodiments of the present utility model have been described above with reference to the accompanying drawings, but the present utility model is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present utility model and the scope of the claims, which are to be protected by the present utility model.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.
Claims (10)
1. A gear clamping mechanism for clamping a gear to be tested, comprising:
the box body is provided with a threaded hole on the side wall, a convex connector is arranged on the top, and the connector is used for being connected with torque testing equipment/instruments;
the two movable stop blocks are positioned in the box body and are symmetrically arranged;
the two screws are provided with external threads matched with the threaded holes of the box body, one end of each screw is connected with the back surface of the movable stop block, the other end of each screw passes through the threaded holes to be arranged outside the box body, and the screws can rotate relative to the movable stop blocks;
when the screw rotates in the forward direction, the two movable stop blocks are close to each other, so that the tested gear is clamped through the front surface of the movable stop blocks.
2. The gear clamping mechanism according to claim 1, further comprising a claw nut, wherein the claw nut is provided with a threaded hole, the claw nut is located outside the box body, and the claw nut is sleeved on the external thread of the screw rod through the threaded hole of the claw nut;
after the movable stop block clamps the tested gear, the claw nut is rotated to enable the claw nut to abut against the outer surface of the box body to lock the screw.
3. The gear clamping mechanism according to claim 1, wherein a limiting groove is formed in the side wall, parallel to the screw, of the box body, and a limiting block matched with the limiting groove is arranged on the side face of the movable stop block;
and when the screw rotates, the limiting block of the movable stop block moves along the limiting groove.
4. A gear clamping mechanism according to claim 3, wherein,
when the screw rotates in the forward direction, one end of the screw abuts against the back surface of the movable stop block to push the movable stop block to approach the other movable stop block;
when the screw is rotated in the reverse direction, one end of the screw is away from the back surface of the movable stopper.
5. A gear gripping device according to claim 3 wherein the limit slot is a rectangular slot and the length of the rectangular slot is parallel to the screw.
6. The gear clamping mechanism according to claim 3, further comprising an adjusting column, wherein one end of the adjusting column is provided with external threads, a threaded hole matched with the external threads of the adjusting column is formed in the side face of the movable stop block, one end of the adjusting column is placed in the threaded hole of the movable stop block through the external threads of the adjusting column, and the other end of the adjusting column is placed outside the movable stop block to form a limiting block.
7. The gear clamp mechanism of claim 1 wherein the front face of the movable stop is a tooth face.
8. The gear clamping mechanism of claim 1 wherein the front face of the movable stop is a V-shaped face or an arcuate face.
9. The gear clamping mechanism of claim 1, wherein the gear under test is a gear on a gear shaft in a 3D printer.
10. A gear torque measurement device comprising a torque testing apparatus/instrument and a gear clamping mechanism according to any one of claims 1 to 9 ；
The torque testing device/instrument is provided with a containing part, and the containing part is used for containing at least one part of the connector of the gear clamping mechanism so as to detachably connect the torque testing device/instrument to the gear clamping mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320246245.7U CN220613647U (en) | 2023-02-10 | 2023-02-10 | Gear clamping mechanism and gear torque measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320246245.7U CN220613647U (en) | 2023-02-10 | 2023-02-10 | Gear clamping mechanism and gear torque measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220613647U true CN220613647U (en) | 2024-03-19 |
Family
ID=90217885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320246245.7U Active CN220613647U (en) | 2023-02-10 | 2023-02-10 | Gear clamping mechanism and gear torque measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220613647U (en) |
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2023
- 2023-02-10 CN CN202320246245.7U patent/CN220613647U/en active Active
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