CN214518615U - Accurate centering device of gear box output end double cranks - Google Patents
Accurate centering device of gear box output end double cranks Download PDFInfo
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- CN214518615U CN214518615U CN202120015841.5U CN202120015841U CN214518615U CN 214518615 U CN214518615 U CN 214518615U CN 202120015841 U CN202120015841 U CN 202120015841U CN 214518615 U CN214518615 U CN 214518615U
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Abstract
The utility model discloses a gear box output double crank accurate centering device for double crank centering on the flying shear gear box including first crank and second crank, include: the mounting structure comprises a first mounting block, a second mounting block and a square strip; the first mounting block is provided with a first long groove matched with the square long strip, the first mounting block is detachably mounted on the first crank and can rotate along with the first crank, and the first mounting block is provided with a first distance sensor pointing to the first long groove; a second long groove matched with the square long strip is formed in the second mounting block, the second mounting block is detachably mounted on the second crank and can rotate along with the second crank, and the second mounting block is provided with a second distance sensor pointing to the second long groove; the square strip can be placed in the first long groove and the second long groove and can be in contact with the first distance sensor and the second distance sensor. The device not only can realize the centering of flying shear gear box output end double crank, but also the device simple structure operation, reuse.
Description
Technical Field
The utility model relates to a flying shear gear box equips technical field, concretely relates to accurate centering device of gear box output double crank.
Background
The existing crank type flying shear connects the upper flying shear and the lower flying shear, when the motor drives the mechanism to move, the upper flying shear blade moves downwards, the lower flying shear blade lifts upwards to form shearing on a rolled piece, the flying shears return to the original position through the crank mechanism to prepare for next shearing, and the process is repeated. The assembly of the flying shear gear box mechanism has the problem of crank centering assembly, and the deviation of the central line of the upper crank and the lower crank is less than 0.3 mm.
SUMMERY OF THE UTILITY MODEL
Aiming at the problems in the prior art, the double-crank accurate centering device for the output end of the gear box is provided, the aim of centering the double cranks at the output end of the flying shear gear box can be achieved, and the device is simple in structure and operation and can be repeatedly used.
The specific technical scheme is as follows:
the utility model provides a gear box output double crank accurate centering device for double crank centering on the flying shear gear box including first crank and second crank, its characterized in that includes: the mounting structure comprises a first mounting block, a second mounting block and a square strip;
the first mounting block is provided with a first long groove matched with the square long strip, the first mounting block is detachably mounted on the first crank and can rotate along with the first crank, and the first mounting block is provided with a first distance sensor pointing to the first long groove;
the second mounting block is provided with a second long groove matched with the square long strip, the second mounting block is detachably mounted on the second crank and can rotate along with the second crank, and the second mounting block is provided with a second distance sensor pointing to the second long groove;
the square strip can be placed in the first long groove and the second long groove and can be in contact with the first distance sensor and the second distance sensor.
The double-crank accurate centering device at the output end of the gearbox is characterized by further comprising a data acquisition and display device, wherein the first distance sensor and the second distance sensor are electrically connected with the data acquisition and display device through signal lines respectively.
The double-crank accurate centering device at the output end of the gearbox is characterized in that the first mounting block is detachably connected with the first crank through a positioning piece and a fastener, and the second mounting block is detachably connected with the second crank through a positioning piece and a fastener.
In the above-mentioned double crank precision centering device at the output end of the gear box, it is also characterized in that the first distance sensor and the second distance sensor are both LVDT sensors.
In a gearbox output end dual crank precision centering device as described above, further characterized in that said LVDT sensor includes a sensor body fixed to said first mounting block and a contact head pointing toward said first elongated slot; and/or
The sensor body is fixed on the second mounting block, and the contact head points to the second long groove.
The double-crank accurate centering device at the output end of the gearbox is characterized by further comprising a sensor fixing component, wherein the sensor fixing component is sleeved on the outer side of the sensor body, and the two opposite ends of the sensor fixing component are fixed on the first mounting block and/or the second mounting block.
The double-crank accurate centering device at the output end of the gear box is characterized in that the sensor fixing assembly comprises a first semicircular clamp, a second semicircular clamp and a fixing piece, wherein first fixing holes are formed in two opposite ends of the first semicircular clamp, second fixing holes are formed in two opposite ends of the second semicircular clamp, the first fixing holes are aligned with the second fixing holes, and the fixing piece is arranged in the first fixing holes in a penetrating mode.
The double crank precision centering device at the output end of the gearbox is also characterized in that a first groove for accommodating the LVDT sensor and the sensor fixing component is arranged on the first mounting block, and a second groove for accommodating the LVDT sensor and the sensor fixing component is arranged on the second mounting block.
The positive effects of the technical scheme are as follows:
the utility model provides a pair of accurate centering device of gear box output double crank, rotate first crank and second crank, the second elongated slot that makes first elongated slot that is located first crank and second crank roughly aligns, place square rectangular in first elongated slot and second elongated slot, first compression quantity value and second compression quantity value that detect out according to first distance sensor and second distance sensor, adjust square rectangular difference absolute value until first compression quantity value and second compression quantity value is less than and predetermines the threshold value for example 0.3mm, then explain centering effect up to standard and can fix, the device not only can realize the purpose of flying shear gear box output double crank centering, and the device simple structure operation, reuse.
Drawings
Fig. 1 is a schematic structural diagram of a first state of a flying shear gear box provided by the present invention;
fig. 2 is a schematic structural diagram of a second state of the flying shear gear box provided by the present invention;
FIG. 3 is a schematic structural view of a double-crank precise centering device at the output end of the gear box provided by the present invention;
FIG. 4 is an exploded view of the dual crank centering device of the gearbox output end of FIG. 3;
FIG. 5 is a partial schematic structural view of the double crank precision centering device at the output end of the gearbox in FIG. 4;
fig. 6 is a schematic structural diagram of an LVDT sensor and a sensor fixing assembly according to the present invention.
In the drawings: 11. a first output shaft; 12. a first crank; 13. a first flying shear; 14. a box body; 15. a second flying shear; 16. a second output shaft; 17. a second crank; 21. a first mounting block; 211. a first elongated slot; 212. a first groove; 22. a second mounting block; 221. a second elongated slot; 222. a second groove; 23. a square strip; 24. a first distance sensor; 25. a second distance sensor; 245. an LVDT sensor; 2451. a sensor body; 2452. a contact head; 26. a sensor fixing assembly; 261. a first semicircular clip; 262. a second half clamp; 263. a fixing member; 27. a data acquisition and display device; 28. a signal line; 31. positioning holes; 41. a fastening hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail by the following embodiments in combination with the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The numbering of the components themselves, such as "first", "second", etc., is used herein only to distinguish between the objects depicted and not to have any sequential or technical meaning. The term "connected" and "coupled" when used in this application, unless otherwise indicated, includes both direct and indirect connections (couplings). In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
Fig. 1 is a schematic structural diagram of a first state of a flying shear gear box provided by the present invention; fig. 2 is a schematic structural diagram of a second state of the flying shear gear box provided by the present invention; FIG. 3 is a schematic structural view of a double-crank precise centering device at the output end of the gear box provided by the present invention; FIG. 4 is an exploded view of the dual crank centering device of the gearbox output end of FIG. 3; FIG. 5 is a partial schematic structural view of the double crank precision centering device at the output end of the gearbox in FIG. 4; fig. 6 is a schematic structural diagram of an LVDT sensor and a sensor fixing assembly according to the present invention. The embodiment of the utility model provides an in flying shear gear box include first output shaft 11, first crank 12, first flying shear 13, box 14, second flying shear 15, second output shaft 16, second crank 17. The axes of the first output shaft 11 and the second output shaft 16 are arranged on the box 14 in parallel, the first crank 12 is rotatably arranged on the first output shaft 11, the second crank 17 is rotatably arranged on the second output shaft 16, the first flying shear 13 is arranged on the first crank 12, the second flying shear 15 is arranged on the second crank 17, and the first crank 12 and the second crank 17 are driven by the motor to realize shearing. The center lines of the first crank 12 and the second crank 17 in this embodiment need to be aligned. Therefore the utility model discloses an accurate centering device of gear box output double crank, the device includes: a first mounting block 21, a second mounting block 22 and a square bar 23.
The first mounting block 21 is provided with a first long slot 211 matched with the square strip 23, and the first mounting block 21 is detachably mounted on the first crank 12 and can rotate along with the first crank 12.
Optionally, the first mounting block 21 and the first crank 12 are detachably connected by a positioning member and a fastening member. Alternatively, the positioning member may be a positioning pin and the fastening member may be a screw.
Optionally, in this embodiment, the positioning pins include two and opposite locations, the positioning pins sequentially pass through the first mounting block 21 and the first crank 12 to achieve positioning of the first mounting block 21, and the screws include two and opposite locations, the screws sequentially pass through the first mounting block 21 and the first crank 12 to detachably fix the first mounting block 21 on the first crank 12.
The positioning member and the fastening member may be disposed according to the existing first crank 12, and if the existing first crank 12 is provided with the positioning hole 31 and the fastening hole 41, the first mounting block 21 may be provided with the positioning hole 31 and the fastening hole 41 corresponding to the positioning hole 31 and the fastening hole 41 of the first crank 12. If there are no available positioning holes 31 and fastening holes 41 on the existing first crank 12, it is necessary to provide the positioning holes 31 and the fastening holes 41 on the existing first crank 12.
The second mounting block 22 is provided with a second long groove 221 matched with the square strip 23, and the second mounting block 22 is detachably mounted on the second crank 17 and can rotate along with the second crank 17.
Optionally, the second mounting block 22 and the second crank 17 are detachably connected by a positioning member and a fastening member. Specifically, the structural connection relationship among the second mounting block 22, the second crank 17, the positioning element and the fastening element is similar to the structural connection relationship among the first mounting block 21, the first crank 12, the positioning element and the fastening element, and reference is made to the foregoing description, which is not repeated herein.
The first mounting block 21 is provided with a first distance sensor 24 directed towards the first long slot 211.
The second mounting block 22 is provided with a second distance sensor 25 directed towards the second elongated slot 221.
Optionally, the LVDT sensor 245 is used for both the first distance sensor 24 and the second distance sensor 25. The LVDT sensor, known as Linear Variable Differential transducer, is an abbreviation of Linear Variable Differential Transformer and belongs to a Linear displacement sensor.
Specifically, the LVDT sensor 245 includes a sensor body 2451 and a contact 2452, the sensor body 2451 is fixed to the first mounting block 21, and the contact 2452 is directed toward the first elongated slot 211; and/or
The sensor body 2451 is fixed to the second mounting block 22 with the contact 2452 pointing towards the second slot 221.
Further, the sensor fixing assembly 26 is further included, the sensor fixing assembly 26 is sleeved outside the sensor body 2451, and opposite ends of the sensor fixing assembly 26 are fixed on the first mounting block 21 and/or the second mounting block 22.
Optionally, the sensor fixing assembly 26 includes a first semicircular clip 261, a second semicircular clip 262 and a fixing member 263, two opposite ends of the first semicircular clip 261 are provided with first fixing holes, two opposite ends of the second semicircular clip 262 are provided with second fixing holes, the first fixing holes and the second fixing holes are aligned, the fixing member 263 is inserted into the first fixing holes and the second fixing holes to fix the first semicircular clip 261 and the second semicircular clip 262 together, and the fixing member 263 further extends into the first mounting block 21 or the second mounting block 22 to fix the LVDT sensor 245 on the first mounting block 21 or the second mounting block 22. In the embodiment where the first groove 212 and the second groove 222 are provided, the fixing member 263 further extends into the groove bottom of the first groove 212 or the second groove 222 to fix the LVDT sensor 245 on the first mounting block 21 or the second mounting block 22.
Preferably, the first mounting block 21 is provided with a first recess 212 for receiving the LVDT sensor 245 and the sensor fixing assembly 26, and the second mounting block 22 is provided with a second recess 222 for receiving the LVDT sensor 245 and the sensor fixing assembly 26. This arrangement allows the LVDT sensor 245 to better contact the sides of the square strip 23 that are placed in the first and second slots 211 and 221.
The embodiment of the utility model provides an in flying shear gear box installation as follows: in the numerical control machining stage, positioning holes 31 and fastening holes 41 are respectively machined in a first crank 12 and a second crank 17, the first crank 12 is installed on a first output shaft 11 through a hot-fitting method, a first installation block 21 is installed on the first output shaft 11 through positioning pins and screws, a second installation block 22 is installed on a second output shaft 16 through positioning pins and screws, a first long groove 211 on the first crank 12 and a second long groove 221 on the second crank 17 are approximately aligned through rotating the first crank 12 and the second crank 17, a square strip 23 is embedded into the first long groove 211 and the second long groove 221, if the first long groove 211 and the second long groove 221 are not completely aligned, the square strip 23 is in contact with a first distance sensor 24 and/or a second distance sensor 25 to generate pressure, whether a deviation displacement compression quantity DeltaL detected and calculated by the first distance sensor 24 and the second distance sensor 25 exceeds a preset threshold value of 0.3mm or not is checked, if the deviation displacement compression amount is smaller than the preset threshold value, the square strip 23 can be pulled until the measured deviation displacement compression amount is smaller than the preset threshold value, which indicates that the deviation of the center lines of the first crank 12 and the second crank 17 is smaller than 0.3mm, then after cooling, the square strip 23, the first mounting block 21 and the second mounting block 22 are dismounted, and the centering installation of the first crank 12 and the second crank 17 is completed.
The first mounting block 21, the second mounting block 22 and the square strip 23 in this embodiment are matching devices, and can be reused only by ensuring the flatness and verticality of the inner surfaces of the first long groove 211 of the first mounting block 21 and the second long groove 221 of the second mounting block 22 and the square strip 23.
Wherein, Δ L ═ L2-L1|, where L1 is the compression magnitude of the first distance sensor 24 located in the first mounting block 21, L2 is the compression magnitude of the second distance sensor 25 located in the second mounting block 22, and Δ L is the offset displacement compression magnitude, specifically equal to the absolute value of the difference between L2 and L1, when Δ L is less than 0.3mm, it indicates that the mounting requirement is met in the centering of the first crank 12 and the second crank 17, and preferably, the centering effect is good when Δ L is less than 0.1 mm. The selection can be specifically carried out according to actual requirements.
Further, a data acquisition and display device 27 is further included, and the first distance sensor 24 and the second distance sensor 25 are electrically connected with the data acquisition and display device 27 through signal lines 28, respectively. The L1 and the L2 detected by the first distance sensor 24 and the second distance sensor 25 are transmitted to the data acquisition and display device 27 through the signal line 28, the data acquisition and display device 27 calculates to obtain a deviation displacement compression quantity delta L and displays the L1, the L2 and the delta L, when the square strip 23 is embedded into the first long groove 211 and the second long groove 221, the square strip 23 is pulled according to the displayed delta L to enable the delta L to be smaller than a preset threshold value, after cooling, the square strip 23, the first mounting block 21 and the second mounting block 22 are detached, and the centering mounting of the first crank 12 and the second crank 17 is completed.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (8)
1. The utility model provides a gear box output double crank accurate centering device for double crank centering on the flying shear gear box including first crank and second crank, its characterized in that includes: the mounting structure comprises a first mounting block, a second mounting block and a square strip;
the first mounting block is provided with a first long groove matched with the square long strip, the first mounting block is detachably mounted on the first crank and can rotate along with the first crank, and the first mounting block is provided with a first distance sensor pointing to the first long groove;
the second mounting block is provided with a second long groove matched with the square long strip, the second mounting block is detachably mounted on the second crank and can rotate along with the second crank, and the second mounting block is provided with a second distance sensor pointing to the second long groove;
the square strip can be placed in the first long groove and the second long groove and can be in contact with the first distance sensor and the second distance sensor.
2. The gearbox output end double-crank accurate centering device according to claim 1, further comprising a data acquisition and display device, wherein the first distance sensor and the second distance sensor are electrically connected with the data acquisition and display device through signal lines respectively.
3. The gearbox output end double-crank precise centering device as claimed in any one of claims 1 or 2, wherein the first mounting block is detachably connected with the first crank through a positioning piece and a fastening piece, and the second mounting block is detachably connected with the second crank through a positioning piece and a fastening piece.
4. The gearbox output end double crank precision centering device as claimed in any one of claims 1 or 2, wherein the first distance sensor and the second distance sensor are both LVDT sensors.
5. The gearbox output end dual crank precision centering device of claim 4, wherein the LVDT sensor includes a sensor body fixed to the first mounting block and a contact head pointing to the first elongated slot; and/or
The sensor body is fixed on the second mounting block, and the contact head points to the second long groove.
6. The gearbox output end double-crank precise centering device according to claim 5, further comprising a sensor fixing component, wherein the sensor fixing component is sleeved outside the sensor body, and opposite ends of the sensor fixing component are fixed on the first mounting block and/or the second mounting block.
7. The gearbox output end double-crank precise centering device according to claim 6, wherein the sensor fixing assembly comprises a first semicircular clamp, a second semicircular clamp and a fixing piece, wherein opposite ends of the first semicircular clamp are provided with first fixing holes, opposite ends of the second semicircular clamp are provided with second fixing holes, the first fixing holes and the second fixing holes are aligned, and the fixing piece is arranged in the first fixing holes and the second fixing holes in a penetrating mode.
8. The gearbox output end dual crank precision centering device of claim 7, wherein the first mounting block has a first groove formed thereon that receives the LVDT sensor and the sensor fixing assembly, and the second mounting block has a second groove formed thereon that receives the LVDT sensor and the sensor fixing assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120015841.5U CN214518615U (en) | 2021-01-05 | 2021-01-05 | Accurate centering device of gear box output end double cranks |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120015841.5U CN214518615U (en) | 2021-01-05 | 2021-01-05 | Accurate centering device of gear box output end double cranks |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214518615U true CN214518615U (en) | 2021-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120015841.5U Active CN214518615U (en) | 2021-01-05 | 2021-01-05 | Accurate centering device of gear box output end double cranks |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214518615U (en) |
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2021
- 2021-01-05 CN CN202120015841.5U patent/CN214518615U/en active Active
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