CN210281306U - Transmission housing bearing outer ring press fitting locking mechanism - Google Patents
Transmission housing bearing outer ring press fitting locking mechanism Download PDFInfo
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- CN210281306U CN210281306U CN201921207333.6U CN201921207333U CN210281306U CN 210281306 U CN210281306 U CN 210281306U CN 201921207333 U CN201921207333 U CN 201921207333U CN 210281306 U CN210281306 U CN 210281306U
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- sliding sleeve
- pressure head
- pressure
- clamping
- strip
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Abstract
The utility model relates to a gearbox housing processingequipment specifically says so gearbox housing bearing inner race pressure equipment locking mechanism. The outer diameter of the upper part of the pressure lever is larger than that of other parts, so that steps are formed on the pressure lever. The lower end of the pressure lever is provided with a pressure head. The pressure head is sleeved with a sliding sleeve, the upper end of the sliding sleeve is provided with an annular flanging which is bent inwards, the annular flanging is positioned above the pressure head, and the section of the pressure rod between the annular flanging and the step of the pressure rod is sleeved with a return spring. The outer diameter of the lower end of the ram is smaller than the outer diameter of the other locations, thereby forming a step on the lower end of the ram. The sliding sleeve is characterized in that strip-shaped through grooves are uniformly distributed in the lower portion of the sliding sleeve along the circumferential direction of the sliding sleeve, clamping strips are arranged in the strip-shaped through grooves, the middle portions of the clamping strips are hinged in the strip-shaped through grooves, stop blocks are fixed on the outer walls of the sliding sleeve corresponding to the upper ends of the clamping strips, and clamping springs are arranged between the upper ends of the clamping strips and the sliding sleeve. The mechanism has the advantages of high production efficiency, high qualified rate of the gearbox and long service life of the pressure head.
Description
Technical Field
The utility model relates to a derailleur housing processingequipment specifically says so and impresses the bearing inner race speed changer shell bearing inner race pressure equipment locking mechanism in the derailleur shell.
Background
The speed variator is a speed variator for coordinating the rotation speed of engine and the actual running speed of wheels, and is used for playing the best performance of engine. All have the casing in the derailleur, all need press in the bearing inner race through bearing inner race pressure equipment mechanism in the derailleur casing.
At present, a pressure mounting mechanism of a bearing outer ring of a transmission shell used in the industry comprises a pressure lever which is vertically arranged, and the outer diameter of the upper part of the pressure lever is larger than that of other parts, so that a step is formed on the pressure lever. The lower end of the pressure rod is concentrically fixed with a columnar pressure head, and the outer diameter of the pressure head is larger than that of the lower end of the pressure rod. The pressure head is sleeved with a sliding sleeve, the sliding sleeve and the pressure head are matched in an axial sliding mode along the pressure head, the upper end of the sliding sleeve is provided with an annular flanging bent inwards, the annular flanging is located above the pressure head, the inner diameter of the annular flanging is smaller than the outer diameter of the pressure head, and a reset spring is sleeved on the section of the pressure rod between the annular flanging and the step of the pressure rod. The outer diameter of the end of the ram remote from the ram is smaller than the outer diameter of the other locations, thereby forming a step on that end of the ram. Blind holes are uniformly distributed on the steps of the pressure head along the circumferential direction of the pressure head, and strong magnets are arranged in the blind holes. When in use, the upper end of the pressure lever is connected with an oil cylinder of the hydraulic press. When the gearbox casing works, the gearbox casing is placed on a workbench of a hydraulic machine. And then, sleeving the bearing outer ring on the lower end of the pressure head, so that one end of the bearing outer ring is abutted against the step of the pressure head, and adsorbing and fixing the bearing outer ring on the pressure head by the powerful magnet. And then, starting the hydraulic machine, driving the pressure rod to quickly move downwards by an oil cylinder of the hydraulic machine, driving the pressure rod to slowly move downwards by the oil cylinder when the pressure head enters a bearing outer ring hole of the transmission shell, pushing the sliding sleeve upwards by the transmission shell, and pressing the bearing outer ring into the transmission shell. Finally, the oil cylinder of the hydraulic press drives the pressure rod to reset, and the movable sleeve resets under the action of the reset spring. The press-fitting mechanism utilizes the powerful magnet to adsorb and fix the bearing outer ring, when the pressure lever is changed from fast descending to slow descending, the bearing outer ring is easy to fall off due to inertia, the production efficiency is reduced, the strength of the powerful magnet is low, the powerful magnet is easy to break, the bearing outer ring is fixed and fails, the powerful magnet is easy to fall off, and the production efficiency is further reduced. Simultaneously, can adsorb on the powerful magnet in the use and have iron fillings, these iron fillings can enter into the gearbox casing along with the pressure head in, reduce the qualification rate of gearbox. In addition, the effective contact area between the pressure head and the bearing inner ring is reduced due to the installation of the powerful magnet, the pressure head is easy to deform, and the service life is short.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a mechanism is locked in pressure equipment of gearbox housing bearing outer lane, the production efficiency who uses this mechanism is higher, and the qualification rate of gearbox is higher, and the life of pressure head is longer.
In order to solve the problems, the following technical scheme is provided:
the utility model discloses a derailleur housing bearing inner race pressure equipment locking mechanism includes vertical arrangement's depression bar, and the external diameter on depression bar upper portion is greater than the external diameter at other positions to form the step on the depression bar. The lower end of the pressure rod is concentrically fixed with a columnar pressure head, and the outer diameter of the pressure head is larger than that of the lower end of the pressure rod. The pressure head is sleeved with a sliding sleeve, the sliding sleeve and the pressure head are matched in an axial sliding mode along the pressure head, the upper end of the sliding sleeve is provided with an annular flanging bent inwards, the annular flanging is located above the pressure head, the inner diameter of the annular flanging is smaller than the outer diameter of the lower portion of the pressure head, and a reset spring is sleeved on the section of the pressure rod between the annular flanging and the step of the pressure rod. The outer diameter of the lower end of the ram is smaller than the outer diameter of the other locations, thereby forming a step on the lower end of the ram. The characteristics are that the lower part of sliding sleeve has the bar to lead to the groove along its circumference equipartition, and the bar leads to the groove and all arranges along the axial of sliding sleeve, and the bar leads to the inslot all has the tight strip of clamp, and the middle part of pressing from both sides tight strip articulates in the groove is led to the bar, all is fixed with the dog on the sliding sleeve outer wall that the tight strip upper end corresponds, has the interval between the lower part and the sliding sleeve of dog, presss from both sides tight strip upper end and lies in between the lower part and the sliding sleeve of dog, and has clamping spring between the upper end and the sliding sleeve of pressing.
The inner side wall of the upper end of the clamping strip is provided with a pit, and the clamping spring is positioned between the bottom of the pit and the sliding sleeve.
The outer side wall of the pressure head is provided with an anti-rotation pin which extends out radially, the side wall of the sliding sleeve corresponding to the anti-rotation pin is provided with a yielding through groove, one end of the anti-rotation pin is located in the yielding through groove, and one end of the yielding through groove is located on the lower end face of the sliding sleeve, so that one end of the yielding through groove is open.
And a horizontal threaded hole is formed in the lower part of the stop block corresponding to the clamping spring, an adjusting screw is connected in the horizontal threaded hole in a threaded manner, and one end of the adjusting screw abuts against the outer side wall of the upper end of the clamping strip.
By adopting the scheme, the method has the following advantages:
because the utility model discloses a lower part of the sliding sleeve of derailleur housing bearing outer lane pressure equipment locking mechanism has the bar to lead to the groove along its circumference equipartition, and the bar leads to the inslot and all has the clamp strip, and the middle part of pressing from both sides the clamp strip articulates in the groove is led to the bar, all is fixed with the dog on the sliding sleeve outer wall that the clamp strip upper end corresponds, and the clamp strip upper end is located between the lower part and the sliding sleeve of dog, and has clamping spring between the upper end of clamp strip and sliding sleeve, and the clamp strip lower extreme is located the pressure head lower extreme. The press fitting locking mechanism utilizes the clamping spring to push the clamping strip to lock and fix the bearing outer ring all around, the fixation firmness is better, the bearing outer ring cannot fall off due to inertia, the strength of the clamping strip is higher, the clamping strip cannot be damaged, and the press fitting work efficiency can be greatly improved. Meanwhile, the gear box is locked and fixed and does not carry scrap iron, so that the qualified rate of the gear box is high. In addition, when the press mounting is carried out, the outer ring of the bearing is in contact with the step surface of the whole pressure head, the effective contact area is large, the pressure head is not easy to deform, and the service life of the pressure head is greatly prolonged.
Drawings
Fig. 1 is a schematic structural view of a press-fitting locking mechanism of a bearing outer ring of a transmission housing of the present invention;
fig. 2 is a schematic view of the three-dimensional state of the transmission housing bearing outer race press-fitting locking mechanism of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1 and 2, the utility model discloses a derailleur housing bearing inner race pressure equipment locking mechanism includes vertical arrangement's depression bar 1, and the external diameter on depression bar 1 upper portion is greater than the external diameter at other positions to form the step on depression bar 1. The lower end of the pressure lever 1 is concentrically fixed with a columnar pressure head 9, and the outer diameter of the pressure head 9 is larger than that of the lower end of the pressure lever 1. The pressure head 9 is sleeved with a sliding sleeve 12, the sliding sleeve 12 is matched with the pressure head 9 in an axial sliding manner along the pressure head 9, the upper end of the sliding sleeve 12 is provided with an annular flanging 3 bent inwards, the annular flanging 3 is positioned above the pressure head 9, the inner diameter of the annular flanging 3 is smaller than the outer diameter of the lower part of the pressure head 9, and the section of the pressure rod 1 between the annular flanging 3 and the step of the pressure rod 1 is sleeved with a reset spring 2. The outer diameter of the lower end of the ram 9 is smaller than the outer diameter of the other portions, thereby forming a step on the lower end of the ram 9. The lower part of sliding sleeve 12 has the bar to lead to the groove along its circumference equipartition, the bar leads to the groove and all arranges along the axial of sliding sleeve 12, the bar leads to the inslot all has a tight strip 8 of clamp, the middle part of pressing from both sides tight strip 8 articulates in the groove is led to the bar, all be fixed with dog 4 on the sliding sleeve 12 outer wall that the tight strip 8 upper end of clamp corresponds, there is the interval between the lower part of dog 4 and sliding sleeve 12, it is located between the lower part of dog 4 and sliding sleeve 12 to press from both sides tight strip 8 upper end, and there is clamping spring 5 between tight strip 8's upper end and sliding sleeve 12, it is located the pressure head 9. The inner side wall of the upper end of the clamping strip 8 is provided with a pit 7, and the clamping spring 5 is positioned between the bottom of the pit 7 and the sliding sleeve 12. The lower part of the stop block 4 corresponding to the clamping spring 5 is provided with a horizontal threaded hole, the horizontal threaded hole is internally connected with an adjusting screw 6, and one end of the adjusting screw 6 is abutted to the outer side wall at the upper end of the clamping strip 8. There is radial outside the preventing rotation pin 11 that stretches out on the lateral wall of pressure head 9, has the logical groove 10 of stepping down on the sliding sleeve 12 lateral wall that prevents rotation pin 11 corresponds, and the one end that prevents rotation pin 11 is located this logical groove 10 of stepping down, and the one end that leads to the groove 10 of stepping down is located the lower terminal surface of sliding sleeve 12 for the one end that leads to the groove 10 of stepping down is uncovered form.
When in use, the upper end of the pressure lever 1 is connected with an oil cylinder of the hydraulic press. The degree of compression of the clamping spring 5 and thus the clamping force of the clamping bar 8 can be adjusted by means of the adjusting screw 6. When the gearbox casing works, the gearbox casing is placed on a workbench of a hydraulic machine. Then, the bearing outer ring 13 is sleeved on the lower end of the pressure head 9, so that one end of the bearing outer ring 13 is abutted against the step of the pressure head 9, and the lower end of the clamping strip 8 clamps and fixes the bearing outer ring 13 between the sliding sleeve 12 and the pressure head 9 under the action of the clamping spring 5. Then, the hydraulic machine is started, the oil cylinder of the hydraulic machine drives the pressure rod 1 to rapidly move downwards, when the pressure head 9 enters the bearing outer ring hole of the transmission shell, the oil cylinder drives the pressure rod 1 to slowly move downwards, the sliding sleeve 12 and the clamping strip 8 are pushed upwards by the transmission shell and leave the bearing outer ring, and the bearing outer ring 13 is pressed into the transmission shell. And finally, the oil cylinder of the hydraulic press drives the pressure rod 1 to reset, and the movable sleeve and the clamping strip 8 reset under the action of the reset spring 2.
Claims (4)
1. The outer ring press-fitting locking mechanism of the bearing of the transmission shell comprises a press rod (1) which is vertically arranged, wherein the outer diameter of the upper part of the press rod (1) is larger than that of other parts, so that a step is formed on the press rod (1); a columnar pressure head (9) is concentrically fixed at the lower end of the pressure rod (1), and the outer diameter of the pressure head (9) is larger than that of the lower end of the pressure rod (1); the pressure head (9) is sleeved with a sliding sleeve (12), the sliding sleeve (12) is matched with the pressure head (9) in an axial sliding manner along the pressure head (9), the upper end of the sliding sleeve (12) is provided with an annular flanging (3) which is bent inwards, the annular flanging (3) is positioned above the pressure head (9), the inner diameter of the annular flanging (3) is smaller than the outer diameter of the lower part of the pressure head (9), and the section of the pressure rod (1) between the annular flanging (3) and the step of the pressure rod (1) is sleeved with a reset spring (2); the outer diameter of the lower end of the pressure head (9) is smaller than that of other positions, so that a step is formed on the lower end of the pressure head (9); the novel clamping device is characterized in that the lower portion of the sliding sleeve (12) is uniformly provided with a strip-shaped through groove along the circumferential direction, the strip-shaped through groove is arranged along the axial direction of the sliding sleeve (12), clamping strips (8) are arranged in the strip-shaped through groove, the middle portions of the clamping strips (8) are hinged in the strip-shaped through groove, stop blocks (4) are fixed on the outer wall of the sliding sleeve (12) corresponding to the upper ends of the clamping strips (8), intervals are formed between the lower portions of the stop blocks (4) and the sliding sleeve (12), the upper ends of the clamping strips (8) are located between the lower portions of the stop blocks (4) and the sliding sleeve (12), clamping springs (5) are arranged between the upper ends of the clamping strips (8) and the sliding sleeve (12), and the lower ends of the clamping.
2. The press-fitting locking mechanism for the bearing outer ring of the transmission housing as claimed in claim 1, wherein a concave pit (7) is formed in the inner side wall of the upper end of the clamping bar (8), and the clamping spring (5) is located between the pit bottom of the concave pit (7) and the sliding sleeve (12).
3. The transmission housing bearing outer ring press-fitting locking mechanism according to claim 1, wherein the outer side wall of the pressure head (9) is provided with an anti-rotation pin (11) which extends radially outward, the side wall of the sliding sleeve (12) corresponding to the anti-rotation pin (11) is provided with a yielding through groove (10), one end of the anti-rotation pin (11) is located in the yielding through groove (10), and one end of the yielding through groove (10) is located on the lower end face of the sliding sleeve (12), so that one end of the yielding through groove (10) is open.
4. The transmission housing bearing outer ring press-fitting locking mechanism as claimed in any one of claims 1 to 3, wherein a horizontal threaded hole is formed in the lower portion of the stop block (4) corresponding to the clamping spring (5), an adjusting screw (6) is connected to the horizontal threaded hole in a threaded manner, and one end of the adjusting screw (6) abuts against the outer side wall of the upper end of the clamping strip (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921207333.6U CN210281306U (en) | 2019-07-31 | 2019-07-31 | Transmission housing bearing outer ring press fitting locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921207333.6U CN210281306U (en) | 2019-07-31 | 2019-07-31 | Transmission housing bearing outer ring press fitting locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210281306U true CN210281306U (en) | 2020-04-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921207333.6U Active CN210281306U (en) | 2019-07-31 | 2019-07-31 | Transmission housing bearing outer ring press fitting locking mechanism |
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| Country | Link |
|---|---|
| CN (1) | CN210281306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328512A (en) * | 2019-07-31 | 2019-10-15 | 无锡蓝力智能装备有限公司 | Case of transmission bearing outer ring is pressed locking mechanism |
-
2019
- 2019-07-31 CN CN201921207333.6U patent/CN210281306U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110328512A (en) * | 2019-07-31 | 2019-10-15 | 无锡蓝力智能装备有限公司 | Case of transmission bearing outer ring is pressed locking mechanism |
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