CN201371348Y - Pull-down type bearing unloading device - Google Patents
Pull-down type bearing unloading device Download PDFInfo
- Publication number
- CN201371348Y CN201371348Y CN200920143337U CN200920143337U CN201371348Y CN 201371348 Y CN201371348 Y CN 201371348Y CN 200920143337 U CN200920143337 U CN 200920143337U CN 200920143337 U CN200920143337 U CN 200920143337U CN 201371348 Y CN201371348 Y CN 201371348Y
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- CN
- China
- Prior art keywords
- bearing
- fixed head
- connecting plate
- fixed
- frame
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000003044 adaptive Effects 0.000 claims description 4
- 230000035939 shock Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 238000007906 compression Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses a pull-down type bearing unloading device, which solve the problems of the prior bearing unloading device that the bearing and top rod is easy to be damaged, comprising a frame (13), a hydraulic device (5), a main oil cylinder (4), a fixation plate (12) and a connection plate (1), wherein the fixation plate (12) is permanently connected with the piston rod of the oil cylinder (6) and a plurality of screws (2) are permanently connected between the fixation plate (12) and the connection plate (1) and a semi-circle aperture (14) is set in the middle of the connection plate (1) and upturns to make the oil cylinder (6) push the fixation plate (12), thus the connection plate (1) enwrap the bearing inner race from the inferior of the bearing to draw and press the bearing and a plurality of support rods (9) for supporting and unloading the bearing are set between the fixation plate (12) and the connection plate (1). The pull-down type bearing unloading device has simple structure and effectively solves the problem that the unloaded bearing is damaged due to rigid impact.
Description
Technical field
The utility model relates to a kind of train wheel to the bearing removal machine, especially a kind of bearing removal machine from bearing below tension and compression.
Background technology
At present, rolling stock uses railway vehicle wheel that the rolling bearing demountor is dismantled rolling bearing in manufacturing and repair procedures usually.The existing bearing demountor comprises frame and the hydraulic means that is fixed on the frame, the front end of frame is fixed with the master cylinder with the extruding axletree, the front end of frame also is fixed with two guide pillars, be respectively equipped with two sliding sleeves adaptive on two guide pillars with guide pillar, be connected with fixed head between two sliding sleeves, fixed head and oil cylinder piston bar are affixed, the driving fixed head moves up and down, the front end of fixed head is provided with connecting plate, be connected with several screw rods between fixed head and the connecting plate, be provided with the semicircle opening suitable in the middle of the connecting plate with axletree, it is semicircle, and Open Side Down, during the dismounting bearing, after oil cylinder promotion fixed head makes connecting plate entangle bearing downwards gradually from the bearing top, starting master cylinder extruding axletree is left behind bearing from axletree.The shortcoming of the bearing removal machine of said structure is: when bearing fully when axletree withdraws from, bearing free-falling under the effect of gravity at first drops on the push rod of master cylinder front end, produces rigid shock, the push rod of easy damaged bearing; Secondly when push rod reclaimed, push rod and bearing produced friction, and when push rod was all regained, bearing fell earthward from push rod, produced and impacted, and fragile bearing also brings potential safety hazard.
The utility model content
The purpose of this utility model is exactly fragile bearing and a push rod and bring the problem of potential safety hazard when solving existing bearing removal machine dismounting bearing.
The technical solution adopted in the utility model is: pull-down bearing removal machine, it comprises frame and the hydraulic means that is fixed on the frame, the front end of frame is fixed with the master cylinder with the extruding axletree, the front end of master cylinder is fixed with push rod, the front end of frame also is fixed with two parallel guide pillars, be respectively installed with two sliding sleeves adaptive on two guide pillars with guide pillar, be connected with fixed head between two sliding sleeves, fixed head and oil cylinder piston bar are affixed, the driving fixed head moves up and down, the front end of fixed head is provided with connecting plate, be connected with several screw rods between fixed head and the connecting plate, be provided with the semicircle opening suitable in the middle of the connecting plate with axletree, the semicircle opening of described connecting plate upwards, make cylinder promote fixed head connecting plate is held from bearing below parcel bearing inner race post-tensioning last item, between fixed head and connecting plate, also be provided with several and be used for supporting the support bar that unloads lower bearing.
Adopt technique scheme, because connecting plate blocks bearing under the extruding of push rod from the below of bearing, when the bearing landing, on support bar, so the distance of fall of bearing is very little with landing, can not produce push rod and damage, can not produce rigid shock to bearing yet, damage bearing, more do not impact ground, produce potential safety hazard.
For further alleviating the impact of bearing, be set with arc pallet on the support bar.Arc pallet has cushioning effect, so during the bearing landing, is supported on the arc pallet, can not tumble, and produces any rigid shock.
In sum, the beneficial effects of the utility model are: because the utility model is provided with the bearing that support bar is used for supporting landing, can not produce rigid shock, therefore dismantle in the bearing process, can not damage bearing bearing, and safe and reliable.
Description of drawings
Fig. 1 is the utility model front view.
Fig. 2 is the side view of Fig. 1.
Fig. 3 is the A-A phantom of Fig. 1.
Among the figure, 1, connecting plate, 2, screw rod, 3, push rod, 4, master cylinder, 5, hydraulic means, 6, oil cylinder, 7, guide pillar, 8, sliding sleeve, 9, support bar, 10, arc pallet, 11, briquetting, 12, fixed head, 13, frame, 14, opening.
The specific embodiment
The utility model pull-down bearing removal machine, as shown in Figure 1, it comprises frame 13 and the hydraulic means 5 that is fixed on the frame 13, frame 13 is to roll to be connected with several convenient rollers that moves.The front end of frame 13 is fixed with the master cylinder 4 with the extruding axletree, and the front end of master cylinder 4 piston rods is fixed with push rod 3.As shown in Figure 2, the front end of frame 13 also is fixed with the guide pillar 7 of two vertical parallel, and the top of guide pillar 7 is connected with briquetting 11, makes two guide pillars 7 fixing.Be respectively installed with and lead two adaptive sliding sleeves 8 of 7 posts on two guide pillars 7.As shown in Figure 3, be connected with fixed head 12 between two sliding sleeves 8.As shown in Figure 2, fixed head 12 is affixed with oil cylinder 6 piston rods, drives fixed head 12 and moves up and down.The front end of fixed head 12 is provided with connecting plate 1, is connected with several screw rods 2 between fixed head 12 and the connecting plate 1, by nut and cooperating of screw thread realizing affixed, as shown in Figure 2, there is surplus inboard with screw rod 2 affixed points on the connecting plate 1, is used for the inner ring of tension and compression bearing, makes bearing skid off axletree.Be provided with the semicircle opening 14 suitable in the middle of the connecting plate 1 with axletree, semicircle opening 14 upwards, make oil cylinder 6 promote fixed head 12 connecting plate 1 is held from bearing below parcel bearing inner race post-tensioning last item, also be provided with two support bars 9 that are used for supporting unloading lower bearing between fixed head 12 and the connecting plate 1.The two ends of support bar 9 are connected on fixed head 12 and the connecting plate 1.Be set with two arc pallets 10 on the support bar 9.
Claims (2)
1, pull-down bearing removal machine, it comprises frame [13] and is fixed on hydraulic means [5] on the frame [13], the front end of frame [13] is fixed with the master cylinder [4] with the extruding axletree, the front end of master cylinder [4] is fixed with push rod [3], the front end of frame [13] also is fixed with two parallel guide pillars [7], be respectively installed with and lead adaptive two sliding sleeves [8] of [7] post on two guide pillars [7], be connected with fixed head [12] between two sliding sleeves [8], fixed head [12] is affixed with oil cylinder [6] piston rod, driving fixed head [12] moves up and down, the front end of fixed head [12] is provided with connecting plate [1], be connected with several screw rods [2] between fixed head [12] and the connecting plate [1], be provided with the semicircle opening [14] suitable in the middle of the connecting plate [1] with axletree, the semicircle opening [14] that it is characterized in that described connecting plate [1] makes progress, make cylinder [6] promote fixed head [12] connecting plate [1] is held from bearing below parcel bearing inner race post-tensioning last item, also be provided with several between fixed head [12] and the connecting plate [1] and be used for supporting the support bar [9] that unloads lower bearing.
2, bearing removal machine according to claim 1 is characterized in that being set with on the support bar [9] arc pallet [10].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920143337U CN201371348Y (en) | 2009-03-13 | 2009-03-13 | Pull-down type bearing unloading device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920143337U CN201371348Y (en) | 2009-03-13 | 2009-03-13 | Pull-down type bearing unloading device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201371348Y true CN201371348Y (en) | 2009-12-30 |
Family
ID=41497432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920143337U Expired - Fee Related CN201371348Y (en) | 2009-03-13 | 2009-03-13 | Pull-down type bearing unloading device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201371348Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103084828A (en) * | 2013-01-21 | 2013-05-08 | 王后忠 | Rolling axletree fast dismounting device |
| CN103909402A (en) * | 2013-01-09 | 2014-07-09 | 山西三元煤业股份有限公司 | Hydraulic wheel propeller |
-
2009
- 2009-03-13 CN CN200920143337U patent/CN201371348Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103909402A (en) * | 2013-01-09 | 2014-07-09 | 山西三元煤业股份有限公司 | Hydraulic wheel propeller |
| CN103909402B (en) * | 2013-01-09 | 2016-08-03 | 山西三元煤业股份有限公司 | A kind of hydraulic wheel puller |
| CN103084828A (en) * | 2013-01-21 | 2013-05-08 | 王后忠 | Rolling axletree fast dismounting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091230 Termination date: 20130313 |