CN211525495U - Mounting mechanism of speed reducer output flange shaft - Google Patents
Mounting mechanism of speed reducer output flange shaft Download PDFInfo
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- CN211525495U CN211525495U CN201922348857.3U CN201922348857U CN211525495U CN 211525495 U CN211525495 U CN 211525495U CN 201922348857 U CN201922348857 U CN 201922348857U CN 211525495 U CN211525495 U CN 211525495U
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Abstract
The utility model provides an installation mechanism of speed reducer output flange axle solves current speed reducer flange axle installation method and has the time and energy consuming, work efficiency is low, easily causes the damage to aligning roller bearing and output flange axle, can't be suitable for the problem of outdoor operations. The mechanism comprises a fixed rod, a fixed disc, a nut and a positioning disc; the fixed disc is used for being connected to a dustproof opening at the front end of the speed reducer cover, and a central hole is formed in the fixed disc; the fixed rod comprises a polished rod section and an external thread section, the end part of the polished rod section is connected with a threaded column, and the thread direction of the surface of the external thread section is the same as that of the surface of the threaded column; the external thread section of the fixed rod penetrates through the central hole and then is connected with the nut; the positioning disc is positioned between the nut and the fixed disc and comprises a sleeve and an annular plate arranged at one end of the sleeve, the sleeve is sleeved on the external thread section of the fixed rod, and the annular plate is close to the nut; the sleeve is sleeved with a bearing, one end face of the bearing is in contact with the annular plate, and the other end face of the bearing extends out of the sleeve and is in contact with the fixed disc.
Description
Technical Field
The utility model belongs to the installation device of flange axle, concretely relates to installation mechanism of speed reducer output flange axle.
Background
In the prior art, a commonly-used pump truck speed reducer structure is shown in fig. 1, and includes a speed reducer casing 02 and a speed reducer cover 01, wherein the front end of the speed reducer casing 02 is connected with the rear end of the speed reducer cover 01, a coupler 06 is arranged in the speed reducer casing 02, the rear end of the speed reducer casing 02 is connected with an output flange shaft 03 through a self-aligning roller bearing 04, a threaded hole 031 is formed in an end surface of the output flange shaft 03 arranged in the speed reducer casing 02, a dustproof oil seal 05 is arranged at the rear end of the speed reducer casing 02, and a dustproof port 011 and a threaded mounting hole are formed in the front end of the speed reducer cover 01 for mounting a dustproof cover; since the self-aligning roller bearing 04 and the dust seal 05 of the speed reducer account for a major part of the speed reducer failure, the self-aligning roller bearing 04 and the dust seal 05 of the speed reducer need to be replaced. When the self-aligning roller bearing 04 is replaced, the output flange shaft 03 needs to be detached at first, the self-aligning roller bearing 04 and the dustproof oil seal 05 need to be replaced, and then the output flange shaft 03 needs to be installed in the speed reduction housing 02.
The existing installation method for the output flange shaft 03 has no simple and effective installation device except the traditional knocking installation method and the pressing method of a press-mounting machine. However, the traditional knocking installation method has the problems of overlarge labor intensity, time and labor waste and low working efficiency, and secondary damage to the output flange shaft 03 and the self-aligning roller bearing 04 can be generated in the installation process; although the press-fitting machine extrusion method does not cause secondary damage to the output flange shaft 03 and the self-aligning roller bearing 04, the flexibility is limited, and in addition, since the speed reducer is mostly operated outdoors and the output flange shaft 03 needs to be installed on the spot when a failure occurs, the speed reducer cannot be installed on the output flange shaft 03 by using a large-sized press machine during the outdoor operation. Therefore, a new mounting mechanism is urgently needed to be researched, and the output flange shaft of the speed reducer can be mounted at any time.
SUMMERY OF THE UTILITY MODEL
In order to solve the installation method of current speed reducer output flange axle exist waste time and energy, work efficiency is low, easily cause the damage to aligning roller bearing and output flange axle to and the unable technical problem who is applicable to outdoor operations, the utility model provides an installation mechanism of speed reducer output flange axle.
In order to achieve the above purpose, the utility model provides a technical scheme is:
the utility model provides an installation mechanism of speed reducer output flange axle which characterized in that: comprises a fixed rod, a fixed disc, a nut and a positioning disc; the fixed disc is used for being connected to a dustproof opening at the front end of the speed reducer cover, and a central hole is formed in the fixed disc; the fixed rod comprises a polished rod section and an external thread section, the end part of the polished rod section is connected with a thread column matched with a threaded hole on the end face of the output flange shaft, and the thread direction of the surface of the external thread section is the same as that of the surface of the thread column; the external thread section of the fixing rod penetrates through the central hole and then is connected with the nut; the positioning disc is positioned between the nut and the fixed disc and comprises a sleeve and an annular plate arranged at one end of the sleeve, the sleeve is sleeved on the external thread section of the fixed rod, and the annular plate is close to the nut; the sleeve is sleeved with a bearing, one end face of the bearing is in contact with the annular plate, and the other end face of the bearing extends out of the sleeve and is in contact with the fixed disc.
Furthermore, one end face of the bearing is in contact with the annular plate, and the other end face of the bearing extends out of the other end of the sleeve.
Further, the bearing is a waste thrust cylindrical roller bearing.
Furthermore, a groove is formed in the outer wall of the polished rod section.
Furthermore, the grooves are 4 symmetrical square shallow grooves and are positioned in the middle of the polished rod section.
Further, the diameter of the polished rod section is larger than that of the external thread section.
Furthermore, one end of the external thread section of the fixing rod, which is far away from the light rod section, is provided with a first through hole.
Furthermore, a plurality of second through holes are formed in the fixing disc along the circumferential direction and are used for being matched with the threaded mounting holes in the front end of the speed reducer cover;
the fixed disk is provided with a boss for matching with a dustproof opening spigot at the front end of the speed reducer cover, and the boss is connected with a threaded mounting hole at the front end of the speed reducer cover after penetrating through a second through hole in the fixed disk through a bolt.
Further, still include power pack, power pack is used for the drive nut to rotate, realizes the installation of output flange axle and self-aligning roller bearing.
Compared with the prior art, the utility model has the advantages that:
1. the mounting mechanism of the utility model has simple structure, and the mounting of the output flange shaft can be realized only by the fixed rod, the fixed disc, the nut, the positioning disc and the bearing; the reduction casing and the reduction cover are integrally driven to move to one side of the output flange shaft by the rotation of the nut on the fixed rod, so that the output flange shaft is installed, the labor intensity of installation is reduced, and the centering roller bearing and the dustproof oil seal are prevented from being damaged in the installation process;
a positioning disc and a bearing are arranged between the nut and the fixed disc to serve as transition between the nut and the fixed disc, so that the nut is prevented from rubbing the fixed disc in the working engineering, the contact area between the nut and the fixed disc is increased, and the fixed disc is prevented from being extruded and deformed;
2. the utility model discloses the sleeve can be stretched out to the bearing, and there is the clearance sleeve and fixed disk terminal surface, prevents the extrusion deformation of sleeve to the fixed disk.
3. The utility model discloses the bearing is dumped thrust cylindrical roller bearing, can come from condemned derailleur, fully embodies the recovery of resource and recycles.
4. The utility model discloses be equipped with square shallow slot on the polished rod section outer wall, the spanner dismouting locating lever of being convenient for.
5. The utility model discloses dead lever external screw thread section can be equipped with first through-hole for fix a position the dead lever, can wear this through-hole department with the crow bar, prevents the dead lever along with the nut up following of process of tightening down.
Drawings
FIG. 1 is a schematic structural diagram of a conventional pump truck speed reducer;
FIG. 2 is a first schematic structural view (the output flange shaft is not mounted) of the mounting mechanism of the present invention mounted on a pump truck speed reducer;
FIG. 3 is a schematic structural view II of the mounting mechanism of the present invention mounted on the speed reducer of the pump truck (the mounting process of the output flange shaft is completed);
FIG. 4 is a schematic structural view of a fixing rod in the mounting mechanism of the present invention;
FIG. 5 is a schematic structural view of a fixing disk in the mounting mechanism of the present invention;
FIG. 6 is a sectional view taken along line B-B of FIG. 5;
FIG. 7 is a schematic structural view of a positioning plate in the mounting mechanism of the present invention;
FIG. 8 is a schematic view of the structure of the bearing in the mounting mechanism of the present invention;
FIG. 9 is a schematic view of the nut of the mounting mechanism of the present invention;
fig. 10 is a sectional view taken along line a-a of fig. 9.
Wherein the reference numbers are as follows:
01-a speed reducer cover, 02-a speed reducer casing, 011-a dustproof port, 03-an output flange shaft, 031-a threaded hole, 04-a self-aligning roller bearing, 05-a dustproof oil seal and 06-a coupler;
1-fixing rod, 11-polishing rod section, 111-threaded column, 112-groove, 12-external threaded section, 121-first through hole, 2-fixing disc, 21-central hole, 22-second through hole, 23-boss, 3-bearing, 4-positioning disc, 41-sleeve, 42-annular plate and 5-nut.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
Example one
As shown in fig. 2 and fig. 3, the mounting mechanism of the output flange shaft of the speed reducer is simple and easy to mount, does not generate secondary damage to the output flange shaft 03 and the self-aligning roller bearing 303, and comprises a fixing rod 1, a fixing disc 2, a nut 5 and a positioning disc 4; the fixed disc 2 is used for being connected with a dustproof port 011 at the front end of the speed reducer cover 01, and a central hole 21 is formed in the fixed disc 2; the fixing rod 1 comprises a polished rod section 11 and an external thread section 12, the end part of the polished rod section 11 is connected with a thread column 111 matched with a threaded hole 031 on the end face of the output flange shaft 03, the fixing of the fixing rod 1 and the output flange shaft 03 is realized, and the thread direction of the surface of the external thread section 12 is the same as that of the surface of the thread column 111; the external thread section 12 of the fixed rod 1 passes through the central hole 21 and then is connected with the nut 5; the positioning disc 4 is located between the nut 5 and the fixed disc 2, as shown in fig. 7, the positioning disc 4 includes a sleeve 41 and an annular plate 42 disposed at one end of the sleeve 41, the sleeve 41 is sleeved on the external thread section 12 of the fixing rod 1, and the annular plate 42 is close to the nut 5; the sleeve 41 is sleeved with the bearing 3, one end face of the bearing 3 is contacted with the annular plate 42, the other end face of the bearing 3 extends out of the other end of the sleeve 41, and when the bearing 3 is contacted with the end face of the fixed disc 2, a gap exists between the sleeve 41 and the end face of the fixed disc 2.
Various components in the mounting mechanism:
1) as shown in fig. 4, the fixing lever 1: the bottom of the fixing rod is provided with an M20 stud which is matched with a threaded hole 031 at the top of the output flange shaft 03, the upper half part of the fixing rod is provided with an M24 external thread to form an external thread section 12 which is matched with the working nut 5, the top of the external thread section 12 is provided with a first through hole 121 with the diameter of 12mm, and the fixing rod 1 mainly has the advantages that a prying rod is required to penetrate through the first through hole 121 during the working process of the fixing rod 1 to prevent the fixing rod 1 from rotating together during the downward tightening process of the nut 5; the lower half part is a polished rod section 11, the diameter of the polished rod section 11 is larger than that of the external thread section 12, and the middle part of the polished rod section 11 of the fixed rod 1 is provided with four symmetrical square shallow grooves which are convenient for a wrench to disassemble and assemble the fixed rod 1;
2) as shown in fig. 5 and 6, the fixed disk 2: the two-way mounting structure comprises four second through holes 22 which are matched with a dustproof port 011 at the front end of a speed reducer cover 01, are uniformly distributed along the circumferential direction on a fixed disc 2, and are matched with bosses 23 matched with a dustproof port 011 spigot at the front end of the speed reducer cover 01, wherein the second through holes 22 are matched with four M10 threaded holes 031 at the dustproof port 011 at the front end of the speed reducer cover 01, penetrate through the second through holes 22 on the fixed disc 2 through bolts, are connected with threaded mounting holes at the front end of the speed reducer cover 01, are positioned by the spigot and mainly bear extrusion force in the mounting process of an output flange;
3) puck 4 and bearing 3: the transition component is matched with each other, and mainly buffers the pressure of the working nut 5 on the positioning disk 4 in the working process and the friction between the working nut and the positioning disk, increases the contact area with the positioning disk 4 and prevents the disk from being extruded and deformed;
wherein, as shown in fig. 8, the bearing 3 is a thrust cylindrical roller bearing, which is from a scrapped transmission, and fully embodies the current environmental protection theme of resource recycling; the positioning disk 4 is mainly matched with a cylindrical roller thrust bearing and directly bears the pressure from the nut 5, and the component has a simple and light structure, is low in manufacturing cost relative to the positioning disk 4 and is high in replaceability.
4) As shown in fig. 9 and 10, the nut 5: the nut is an M24 common nut, the internal surface screw thread is matched with the external screw thread section 12 of the fixed rod 1, the nut is common and easy to obtain, in the installation process, the nut 5 moves downwards to enable the speed reducer to move downwards integrally, the nut 5 can be driven to rotate by the power unit, namely, the speed reducer cover 01 and the speed reducer casing 02 are integrally pressed on the output flange shaft 03, and therefore the installation work of the output flange shaft 03 and the self-aligning roller bearing 303 is completed.
Compared with the traditional beating installation mode, the installation mechanism of the embodiment has the advantages of simple structure, convenience in installation, improvement of working environment, reduction of labor intensity in the installation process, improvement of working efficiency, easiness in processing and low cost, and can be used for preventing secondary damage to the aligning roller bearing and the dustproof oil seal in the installation process.
The method for mounting the output flange shaft by adopting the mounting mechanism of the output flange shaft of the speed reducer comprises the following steps:
1) firstly, a circle of bolts connecting the speed reducer casing 02 and the speed reducer cover 01 are taken down, and the speed reducer cover 01 and the speed reducer casing 02 are connected through a secondary sun gear, so that the whole speed reducer cover 01 can be directly separated from the speed reducer casing 02 after the connecting bolts are removed; then taking out the primary planet carrier assembly in the speed reducer cover 01 and the secondary planet carrier assembly in the speed reducer shell 02, wherein the rest structure is shown in figure 1;
2) the fixing rod 1 is fastened in a threaded hole 031 on the end face of the output flange shaft 03 through a threaded column 111 connected with the end of the polished rod section 11;
3) because the primary planet carrier assembly in the speed reducer cover 01 is taken out, the fixed disk 2 can be directly positioned with the dustproof opening 011 spigot at the front end of the speed reducer cover 01 through the boss 23, and sequentially passes through the second through hole 22 and the threaded mounting hole through the bolt, the fixed disk 2 is connected to the dustproof opening 011 at the front end of the speed reducer cover 01, and the bolt is only used for preventing the fixed disk 2 from rotating and does not bear the axial acting force generated in the working process of the mounting mechanism;
4) after the fixed disc 2 is installed, the speed reducer cover 01 is connected with the speed reducer casing 02, specifically, an external thread section 12 of the fixed bar 1 penetrates through a central hole 21 of the fixed disc 2, and a plurality of bolts are symmetrically installed to fix the speed reducer cover 01 and the speed reducer casing 02;
5) a positioning disc 4 is arranged on an external thread section 12 of the fixed rod 1 which penetrates out of the fixed disc 2, and a bearing 3 is arranged on a sleeve 41 of the positioning disc 4;
6) a nut 5 is arranged on the external thread section 12 of the fixed rod 1;
7) the nut 5 is rotated, the nut 5 drives the positioning disc 4 to move axially along the fixing rod 1, the positioning disc 4 extrudes the speed reducer cover 01 and the speed reducer shell 02 integrally to move towards one side close to the output flange shaft 03 along the axial direction of the fixing rod 1 through the bearing 3, and the speed reducer cover 01 and the speed reducer shell 02 are pressed on the output flange shaft 03.
8) After the installation of output flange axle 03 and speed reduction casing 02 is accomplished, take off a plurality of bolts that speed reduction cover 01 and speed reduction casing 02 are connected, demolish fixed disk 2 on the speed reduction cover 01, dead lever 1 on the speed reduction casing 02, pack into speed reduction cover 01, second grade planet carrier assembly speed reduction casing 02 with one-level planet carrier assembly, link to each other speed reduction casing 02 and speed reduction cover 01 through the bolt.
Example two
The difference from the first embodiment is that: a mounting method of an output flange shaft of a speed reducer comprises the following steps:
1) the fixing rod 1 is fastened in a threaded hole 031 on the end face of the output flange shaft 03 through a threaded column 111 connected with the end of the polished rod section 11;
2) the fixed disk 2 is positioned with a dustproof opening 011 spigot at the front end of the speed reducer cover 01 through a boss 23, the fixed disk 2 sequentially penetrates through a second through hole 22 and a threaded mounting hole through bolts, and the fixed disk 2 is connected to the dustproof opening 011 at the front end of the speed reducer cover 01, the bolts are only used for preventing the fixed disk 2 from rotating and do not bear axial acting force generated in the working process of the mounting mechanism; this step can be transposed in the order of step 1);
3) the external thread section 12 of the fixed rod 1 sequentially passes through the speed reduction machine shell 02, the speed reduction machine cover 01 and the central hole 21 of the fixed disk 2, and one end of the output flange shaft 03 provided with a threaded hole 031 is positioned in the speed reduction machine shell 02, namely the output flange shaft is positioned at a pre-installation position;
4) a positioning disc 4 is arranged on an external thread section 12 of the fixed rod 1 which penetrates out of the fixed disc 2, and a bearing 3 is arranged on a sleeve 41 of the positioning disc 4;
5) a nut 5 is arranged on the external thread section 12 of the fixed rod 1;
6) the nut 5 is rotated, the nut 5 drives the positioning disc 4 to move axially along the fixing rod 1, the positioning disc 4 extrudes the speed reducer cover 01 and the speed reducer shell 02 integrally to move towards one side close to the output flange shaft 03 along the axial direction of the fixing rod 1 through the bearing 3, and the speed reducer cover 01 and the speed reducer shell 02 are pressed on the output flange shaft 03. The installation process is simple and easy to operate.
The above description is only for the preferred embodiment of the present invention, and the technical solution of the present invention is not limited thereto, and any known modifications made by those skilled in the art on the basis of the main technical idea of the present invention belong to the technical scope to be protected by the present invention.
Claims (8)
1. The utility model provides an installation mechanism of speed reducer output flange axle which characterized in that: comprises a fixed rod (1), a fixed disc (2), a nut (5) and a positioning disc (4);
the fixed disc (2) is used for being connected to a dustproof opening (011) at the front end of the speed reducer cover (01), and a central hole (21) is formed in the fixed disc (2);
the fixing rod (1) comprises a polish rod section (11) and an external thread section (12), the end part of the polish rod section (11) is connected with a thread column (111) matched with a threaded hole (031) in the end face of the output flange shaft (03), and the thread direction of the surface of the external thread section (12) is the same as that of the surface of the thread column (111);
the external thread section (12) of the fixing rod (1) penetrates through the central hole (21) and then is connected with the nut (5);
the positioning disc (4) is positioned between the nut (5) and the fixed disc (2), the positioning disc (4) comprises a sleeve (41) and an annular plate (42) arranged at one end of the sleeve (41), the sleeve (41) is sleeved on the external thread section (12) of the fixed rod (1), and the annular plate (42) is close to the nut (5);
the sleeve (41) is sleeved with a bearing (3), one end face of the bearing (3) is in contact with the annular plate (42), the other end face of the bearing extends out of the sleeve (41), and the other end of the bearing is in contact with the fixed disc (2).
2. The mounting mechanism of the output flange shaft of the speed reducer as claimed in claim 1, wherein: the bearing (3) is a waste thrust cylindrical roller bearing.
3. The mounting mechanism of the output flange shaft of the speed reducer as claimed in claim 2, wherein: and a groove (112) is arranged on the outer wall of the polished rod section (11).
4. The mounting mechanism of the output flange shaft of the speed reducer as claimed in claim 3, wherein: the grooves (112) are 4 symmetrical square shallow grooves and are positioned in the middle of the polished rod section (11).
5. The mounting mechanism of the output flange shaft of the speed reducer as claimed in claim 1, wherein: the diameter of the polished rod section (11) is larger than that of the external thread section (12).
6. The mounting mechanism of the output flange shaft of the speed reducer as claimed in claim 1, wherein: one end of the external thread section (12) of the fixed rod, which is far away from the polished rod section (11), is provided with a first through hole (121).
7. The mounting mechanism of the output flange shaft of the speed reducer as claimed in claim 1, wherein: the fixed disc (2) is provided with a plurality of second through holes (22) along the circumferential direction and is used for being matched with the threaded mounting hole at the front end of the speed reducer cover (01);
be equipped with boss (23) on fixed disk (2) for with dustproof mouth (011) tang cooperation of speed reducer cover (01) front end, pass second through-hole (22) on fixed disk (2) back through the bolt, be connected with the screw thread mounting hole of speed reducer cover (01) front end.
8. The mounting mechanism of the output flange shaft of the speed reducer as claimed in claim 1, wherein: the nut screwing machine further comprises a power unit, and the power unit is used for driving the nut (5) to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922348857.3U CN211525495U (en) | 2019-12-24 | 2019-12-24 | Mounting mechanism of speed reducer output flange shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922348857.3U CN211525495U (en) | 2019-12-24 | 2019-12-24 | Mounting mechanism of speed reducer output flange shaft |
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| Publication Number | Publication Date |
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| CN211525495U true CN211525495U (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922348857.3U Active CN211525495U (en) | 2019-12-24 | 2019-12-24 | Mounting mechanism of speed reducer output flange shaft |
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| CN (1) | CN211525495U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985641A (en) * | 2019-12-24 | 2020-04-10 | 陕西法士特汽车传动集团有限责任公司 | Mounting mechanism and method for output flange shaft of speed reducer |
-
2019
- 2019-12-24 CN CN201922348857.3U patent/CN211525495U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110985641A (en) * | 2019-12-24 | 2020-04-10 | 陕西法士特汽车传动集团有限责任公司 | Mounting mechanism and method for output flange shaft of speed reducer |
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