CN209036427U - A kind of DC traction motor test gear disassembling device - Google Patents
A kind of DC traction motor test gear disassembling device Download PDFInfo
- Publication number
- CN209036427U CN209036427U CN201821770108.9U CN201821770108U CN209036427U CN 209036427 U CN209036427 U CN 209036427U CN 201821770108 U CN201821770108 U CN 201821770108U CN 209036427 U CN209036427 U CN 209036427U
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- China
- Prior art keywords
- conversion head
- removal hole
- gasket
- hole
- shaft shoulder
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Abstract
The utility model discloses a kind of DC traction motors to test gear disassembling device, including conversion head, conversion head one end is arranged in and can be threadedly coupled with the removal hole on motor output shaft connection external screw thread, the thread-rolling screw hole that is arranged in conversion head and can be connected to removal hole.The beneficial effects of the utility model are: conversion head is mounted in removal hole by the utility model; using the thread-rolling screw hole being connected on conversion head with removal hole come installing and dismounting bolt; in the larger-size situation of removal hole; it is able to use the disassembly for being less than the demounting bolt progress gear of disassembly pore size; the reaction force discharged after lubricating grease is extruded is born simultaneously using demounting bolt and conversion head; the axial force that corresponding conversion head is subject to alone with demounting bolt can reduce, to protect the screw thread of the disassembly screw thread and demounting bolt in removal hole.
Description
Technical field
The utility model relates to motor field, specifically a kind of DC traction motor tests gear disassembling device.
Background technique
Under the conditions of the prior art, the dismounting of DC traction motor test gear is added in the removal hole of machine shaft end face
Lubricating grease is infused, baffle is installed in shaft end face, winds sealing using the screw thread position of the demounting bolt with removal hole corresponding specification
Demounting bolt is fastened in disassembly screw hole by material.During demounting bolt precession, using in demounting bolt extruded hole
Lubricating grease, after reaching certain pressure, under the action of lubricating grease expanding force, bore is voluntarily fallen off gear after swell.
If removal hole thread size is big (when > M16), the lubricating grease in removal hole is more, then demounting bolt and disassembly
The forced area in hole is big, and when removing gear, bolt head thus also can be very big by lubricating grease reaction force, suffered by screw thread position
Axial force it is also very big, cause the large labor intensity of operator, and be easy to cause on machine shaft when being screwed into demounting bolt
Disassembly screw thread and bolt thread damage.
Utility model content
In order to overcome the deficiencies of the prior art, the utility model provides a kind of DC traction motor test gear disassembling dress
It sets, for protecting the disassembly screw thread in removal hole.
The technical scheme in the invention for solving the above technical problem is: a kind of DC traction motor test gear disassembling
Device, including conversion head, the connection that conversion head one end is arranged in and can be threadedly coupled with the removal hole on motor output shaft outside
Screw thread, the thread-rolling screw hole that is arranged in conversion head and can be connected to removal hole.
Beneficial effect acquired by this programme is: conversion head is mounted in removal hole, using on conversion head with removal hole
Installing and dismounting bolt is carried out in the thread-rolling screw hole of connection, in the larger-size situation of removal hole, is able to use less than removal hole ruler
Very little demounting bolt carries out the disassembly of gear, with conversion head bears to discharge after lubricating grease is extruded simultaneously using demounting bolt anti-
Active force, the axial force that corresponding conversion head is subject to alone with demounting bolt can reduce, to protect the disassembly spiral shell in removal hole
The screw thread of line and demounting bolt.
Further, in order to preferably realize the utility model, it is provided with gasket on the connection external screw thread, it is described
Conversion head on be provided with the gasket shaft shoulder for being limited to gasket.
It is using beneficial effect acquired by above-mentioned further technical solution: conversion can be enhanced using the gasket shaft shoulder
Sealing effect between head and removal hole, reduces the leakage of lubricating grease and the loss of pressure.
Further, in order to preferably realize that the utility model, the lateral surface of the gasket are provided with big end direction
The conical surface of the gasket shaft shoulder, the minimum diameter of the conical surface are less than the internal diameter of removal hole, and the maximum gauge of the conical surface is big
In the internal diameter of removal hole.
Using beneficial effect acquired by above-mentioned further technical solution is: protruding into removal hole convenient for gasket to increase
Strong sealing effect.
Further, in order to preferably realize that the utility model, the gasket are set close to the end face of the gasket shaft shoulder
It is equipped with limiting slot, is provided with the limited block being used cooperatively with limiting slot on the gasket shaft shoulder.
It is using beneficial effect acquired by above-mentioned further technical solution: utilizes the cooperation energy of limiting slot and limited block
Enough gaps between gasket and connection external screw thread are sealed.
Further, in order to preferably realize the utility model, the separate externally threaded one end of connection of the conversion head is set
It is equipped with six sides.
It is using beneficial effect acquired by above-mentioned further technical solution: is convenient to rotation conversion head using six.
Further, in order to preferably realize the utility model, close to connecting externally threaded one end in the conversion head
It is provided with the squeezing through-hole being connected to thread-rolling screw hole.
It is using beneficial effect acquired by above-mentioned further technical solution: reduces the length in thread-rolling screw hole, reduces
Difficulty of processing.
Further, in order to preferably realize the utility model, it is slidably fitted with baffle on the gasket shaft shoulder, institute
The gasket shaft shoulder stated is provided with the baffle shaft shoulder far from externally threaded one end is connected.
It is using beneficial effect acquired by above-mentioned further technical solution: motor can be detached from gear using baffle
Play the role of blocking when output shaft, prevents gear from hurting sb.'s feelings.
Detailed description of the invention
Fig. 1 is the cross-sectional view of this programme；
Fig. 2 is the structural schematic diagram of this programme；
Fig. 3 is the structural schematic diagram of gasket.
Wherein: 1- conversion head, 11- connection external screw thread, 12- thread-rolling screw hole, 13- squeezing through-hole, 2- gasket, 21- are close
The packing shaft shoulder, the 22- conical surface, 23- limiting slot, 24- limited block, 3- baffle, the 31- baffle shaft shoulder, 4- motor output shaft.
Specific embodiment
Below with reference to examples and drawings, the utility model is described in further detail, but the reality of the utility model
It is without being limited thereto to apply mode.
Embodiment 1:
As shown in Figure 1, in the present embodiment, a kind of DC traction motor tests gear disassembling device, including conversion head 1, sets
Set 1 one end of conversion head and can be threadedly coupled with the removal hole on motor output shaft 4 connection external screw thread 11, setting converting
In the first 1 and thread-rolling screw hole 12 that can be connected to removal hole.
When motor output shaft 4 is using gear transmitting torque, by gear set on motor output shaft 4, on motor output shaft 4
It is provided with the removal hole for dismantling gear, removal hole is communicated with lubricating grease hole, lubricating grease hole can be utilized to gear and motor
Gap between output shaft 4 conveys lubricating grease.When needing to remove gear, the installing and dismounting bolt in removal hole utilizes disassembly
Bolt precession removal hole squeezes the lubricating grease in removal hole, and lubricating grease internal pressure under the action of extruding becomes larger, and to tearing open
It unloads bolt to apply reaction force and squeeze gear by lubricating grease hole, gear causes in gear under the squeezing action of lubricating grease
Diameter increases, so as to be detached from motor output shaft 4.
This programme is less than the demounting bolt of disassembly pore size using conversion head 1 and size to replace size to be equal to removal hole
The demounting bolt of size passes through demounting bolt by the way that the connection external screw thread 11 on conversion head 1 to be threaded in removal hole
Lubricating grease of the thread-rolling screw hole 12 into removal hole on conversion head 1 applies pressure.It is squeezed in lubricating grease and applies outward
When reaction force, shared by the end face of conversion head 1, the end face of demounting bolt and gear, the axis that corresponding conversion head 1 is born
It is less than size to power and is equal to the axial force that the demounting bolt of disassembly pore size is born, axial force suffered by the internal screw thread of removal hole
Can also it reduce accordingly, it is thus possible to play the role of protecting removal hole internal screw thread.Axial force suffered by demounting bolt also can
Reduce, to can also protect the external screw thread of demounting bolt.
Embodiment 2:
On the basis of the above embodiments, in the present embodiment, gasket 2, institute are provided on the connection external screw thread 11
The gasket shaft shoulder 21 for being limited to gasket 2 is provided on the conversion head 1 stated.
After the 11 precession removal hole of connection external screw thread of conversion head 1, it is tightly connected gasket 2 and removal hole, and lead to
It crosses the gasket shaft shoulder 21 and compresses gasket 2.2 pairs of gasket connection external screw threads 11 and the internal screw thread of removal hole are sealed, are prevented
Only leakage occurs under the effect of the pressure for lubricating grease causes to waste or cause the pressure loss.
As shown in figure 3, the lateral surface of the gasket 2 is provided with big end towards the gasket shaft shoulder 21 in the present embodiment
The conical surface 22, the minimum diameter of the conical surface 22 is less than the internal diameter of removal hole, and the maximum gauge of the conical surface 22, which is greater than, to be torn open
Unload the internal diameter in hole.
The end of removal hole can design the counter sink of taper or cylinder as needed, can be with counter sink using the conical surface 22
It is connected and sealed to enhance the sealing effect of gasket 2.
As shown in figure 3, the gasket 2 is provided with limiting slot close to the end face of the gasket shaft shoulder 21 in the present embodiment
23, the limited block 24 being used cooperatively with limiting slot 23 is provided on the gasket shaft shoulder 21.The limiting slot 23 be with
The coaxial annular groove of external screw thread 11 is connected, the limited block 24 is the annular groove coaxial with limiting slot 23.Utilize limit
The cooperation of slot 23 and limited block 24 can enhance sealing of the gasket 2 to gasket 2 between connection external screw thread 11, thus anti-
Only lubricating grease is revealed.In the present embodiment, other contents not described are same as the previously described embodiments, therefore do not repeat.
Embodiment 3:
On the basis of the above embodiments, in the present embodiment, the conversion head 1 is set far from one end of connection external screw thread 11
It is equipped with six sides 12.Six sides 12 be regular hexagonal prism, using six sides 12 be convenient for spanner clamp and by conversion head 1 tighten or pine
It opens, so that conversion head 1 is convenient to use.In the present embodiment, other contents not described are same as the previously described embodiments, therefore do not repeat.
Embodiment 4:
On the basis of the above embodiments, in the present embodiment, close to one end of connection external screw thread 11 in the conversion head 1
It is provided with the squeezing through-hole 13 being connected to thread-rolling screw hole 12.The design in thread-rolling screw hole 12 can be reduced using squeezing through-hole 13
Length, to reduce the difficulty of processing in thread-rolling screw hole 12.In the present embodiment, other contents not described and above-described embodiment phase
Together, it therefore does not repeat.
Embodiment 5:
As shown in Fig. 2, on the basis of the above embodiments, in the present embodiment, peace is slided on the gasket shaft shoulder 21
Equipped with baffle 3, the gasket shaft shoulder 21 is provided with the baffle shaft shoulder 31 far from one end of connection external screw thread 11.Outside baffle 3
Diameter is greater than the diameter of motor output shaft 4.
When gear causes inner ring to increase and separate from motor output shaft 4 under the pressure effect of lubricating grease,
Gear may pop up under the action of grease pressure along the length direction of motor output shaft 4, can be played using baffle 3
The effect of protection prevents gear pop-up from hurting sb.'s feelings.Baffle 3 can be limited using the baffle shaft shoulder 31, anti-baffle plate 3 is detached from.
It is above-described, it is only the preferred embodiment of the utility model, any form not is made to the utility model
On limitation, according to the technical essence of the utility model, within the spirit and principles of the present invention, to above embodiments institute
Any simple modifications, equivalent substitutions and improvements etc. made, within the protection scope for still falling within technical solutions of the utility model.
Claims (7)
1. a kind of DC traction motor tests gear disassembling device, it is characterised in that: including conversion head (1), be arranged in conversion head
(1) one end and the connection external screw thread (11) that can be threadedly coupled with the removal hole on motor output shaft, setting are in conversion head (1)
And the thread-rolling screw hole (12) that can be connected to removal hole.
2. a kind of DC traction motor according to claim 1 tests gear disassembling device, it is characterised in that: the company
It connects and is provided with gasket (2) on external screw thread (11), be provided on the conversion head (1) for being limited to gasket (2)
The gasket shaft shoulder (21).
3. a kind of DC traction motor according to claim 2 tests gear disassembling device, it is characterised in that: described is close
The lateral surface of packing (2) is provided with the conical surface (22) of the big end towards the gasket shaft shoulder (21), and the minimum of the conical surface (22) is straight
Diameter is less than the internal diameter of removal hole, and the maximum gauge of the conical surface (22) is greater than the internal diameter of removal hole.
4. a kind of DC traction motor according to claim 3 tests gear disassembling device, it is characterised in that: described is close
Packing (2) is provided with limiting slot (23) close to the end face of the gasket shaft shoulder (21), is provided on the gasket shaft shoulder (21)
The limited block (24) being used cooperatively with limiting slot (23).
5. a kind of according to claim 1, DC traction motor test gear disassembling device described in any one of 2,3,4, special
Sign is: the conversion head (1) is provided with six sides (14) far from one end of connection external screw thread (11).
6. a kind of DC traction motor according to claim 5 tests gear disassembling device, it is characterised in that: described turns
It changes one end in head (1) close to connection external screw thread (11) and is provided with the squeezing through-hole (13) being connected to thread-rolling screw hole (12).
7. a kind of DC traction motor according to any one of claim 2,3,4 tests gear disassembling device, feature
It is: is slidably fitted with baffle (3) on the gasket shaft shoulder (21), the gasket shaft shoulder (21) is far from the outer spiral shell of connection
One end of line (11) is provided with the baffle shaft shoulder (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821770108.9U CN209036427U (en) | 2018-10-30 | 2018-10-30 | A kind of DC traction motor test gear disassembling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821770108.9U CN209036427U (en) | 2018-10-30 | 2018-10-30 | A kind of DC traction motor test gear disassembling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209036427U true CN209036427U (en) | 2019-06-28 |
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ID=67040108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821770108.9U Active CN209036427U (en) | 2018-10-30 | 2018-10-30 | A kind of DC traction motor test gear disassembling device |
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|---|---|
| CN (1) | CN209036427U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431890A (en) * | 2021-07-08 | 2021-09-24 | 徐州徐工传动科技有限公司 | Power transmission case, drive device and vehicle |
-
2018
- 2018-10-30 CN CN201821770108.9U patent/CN209036427U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113431890A (en) * | 2021-07-08 | 2021-09-24 | 徐州徐工传动科技有限公司 | Power transmission case, drive device and vehicle |
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