CN105081739A - Press mounting device for bearing of rear axle differential of small vehicle - Google Patents
Press mounting device for bearing of rear axle differential of small vehicle Download PDFInfo
- Publication number
- CN105081739A CN105081739A CN201510482095.XA CN201510482095A CN105081739A CN 105081739 A CN105081739 A CN 105081739A CN 201510482095 A CN201510482095 A CN 201510482095A CN 105081739 A CN105081739 A CN 105081739A
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- bearing
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- piston rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P2700/00—Indexing scheme relating to the articles being treated, e.g. manufactured, repaired, assembled, connected or other operations covered in the subgroups
- B23P2700/50—Other automobile vehicle parts, i.e. manufactured in assembly lines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Retarders (AREA)
Abstract
The invention provides a press mounting device for a bearing of a rear axle differential of a small vehicle. The device comprises a bracket; a horizontally-arranged supporting plate is fixed to the upper surface of the bracket; the lower ends of a first vertical column and a second vertical column are respectively fixed to the left end and the right end of the upper surface of the supporting plate, wherein the first vertical column and the second vertical column are vertical and arranged in parallel, and the first vertical column and the second vertical column are glidingly connected with two ends of a differential fixing plate and a downward-pressing plate from bottom to top in a sequence; the upper ends of the first vertical column and the second vertical column are fixedly connected with a cylinder fixing plate; a cylinder of which a piston rod downwards extends out is fixed to the cylinder fixing plate; the downward-pressing plate and a fixing device for the bearing at the upper side of the differential are fixed below the piston rod of the cylinder; a second circular through hole for mounting the differential is formed in the differential fixing plate; a bearing fixing seat for mounting a pressing-in bearing at the lower side of the differential is fixed to the supporting plate. The device is simple in structure, and small in cost; the efficiency of press-mounting of the bearing of the differential can be improved.
Description
One, technical field
The present invention relates to a kind of differential bearing press-loading apparatus, particularly a kind of dilly rear axle differential bearing press-fitting device.
Two, background technology
Differential mechanism realizes the different rotating speeds of two-wheeled because of it in turn inside diameter process, improve the turning speed of vehicle and protect the advantages such as tire and extensive use, differential mechanism needs to rotate in axle housing, two ends need to install spring bearing, and brearing bore and needs differential mechanism installation position external cylindrical surface are generally interference is connected, the usual employing manually mode of knocking is installed, particularly outstanding in dilly manufacturing enterprise, not only efficiency is low, and the power acting on each position of bearing is uneven, easily damage is caused to differential mechanism installation position external cylindrical surface, even if some adopt mechanical press mounting mode to carry out bearing installation, mostly be that equipment is complicated, cost is higher, and once can only press-fit the one-sided bearing of differential mechanism, need to overturn differential mechanism, turn opposite side bearing again, labour intensity is large, efficiency is low.
And the present invention is provided with the flange shape of installing external toothing or sprocket wheel according to the top of dilly differential mechanism intermediate cylindrical, utilize the flange location of differential mechanism cylinder and its upper end fixing, employing cylinder piston rod drives, slide up and down plate guiding, improve and press-fit precision, be pressed into differential mechanism two side bearing simultaneously, and utilize spring to achieve differential mechanism to automatically reset, structure is simple, and cost is low, and efficiency is high.
Three, summary of the invention
The object of the invention is to: be pressed into differential mechanism supported on both sides bearing for dilly manufacturing enterprise provides a kind of simultaneously, press-fit that precision is high, the dilly rear axle differential bearing press-fitting device of differential mechanism spring automatic reset.
The object of the present invention is achieved like this: a kind of dilly rear axle differential bearing press-fitting device comprises support 1, support 1 upper surface is fixed with horizontally disposed gripper shoe 3, column 1 vertical and arranged in parallel is fixed at two ends, gripper shoe 3 upper surface left and right respectively, the lower end of column 2 10, column 1, column 2 10 respectively be positioned at differential mounting plate about 5 two ends that gripper shoe 3 upper horizontal arranges and be slidably connected, column 1 between gripper shoe 3 and differential mounting plate 5, on column 2 10, kink has back-moving spring 1 respectively, back-moving spring 2 11, the top of described differential mounting plate 5 is provided with horizontally disposed lower platen 7, lower platen about 7 two ends respectively with column 1, column 2 10 is slidably connected, air cylinder fixed plate 8 is fixed on column 1, column 2 10 top and be positioned at the top of lower platen 7, air cylinder fixed plate 8 is positioned at column 1, the central axis line centre position of column 2 10 is fixed with cylinder 9, piston rod 18 vertical direction of cylinder 9 arranges and can stretch out downwards, described gripper shoe 3 upper surface is positioned at column 1, column 2 10 centre position is fixed with bearing fixed seat 2,
Below the piston rod 18 of described cylinder 9 simultaneously with lower platen 7 with clamp cover 17 upper end and be fixedly connected with, clamping cover 17 is positioned at below lower platen 7, described clamping cover 17 is fixedly connected with beneath portions in the hollow bell mouth shape towards outer incline with piston rod 18, above described clamping cover 17, cylindrical is provided with external screw thread, the internal thread that above itself and rotary sleeve 16, internal diameter is arranged forms screw pair, below rotary sleeve 16, internal diameter is greater than top internal diameter, and thereunder the lower edge portion of internal diameter is divided and is provided with and clamps outward-dipping gradient identical below cover 17, below rotary sleeve 16, internal diameter is less than the external diameter of horn mouth position below clamping cover 17, below the bell mouth shape position being positioned at clamping cover 17, clamping cover 17 lower end is provided with the annular chamber of lower opening, in order to hold bearing 13 on the upside of differential mechanism, otch is run through to the radial direction offering six circumference uniform distributions with the threaded engagement part of piston rod 18 above it in clamping cover 17 lower end, the annular chamber of clamping cover 17 bell mouth shape position and below thereof is divided into six lobes, the six lobe inside fronts holding bearing 13 annular chamber on the upside of differential mechanism are all fixed with block 14, all do not contact between each block 14, the circular hole two run through up and down with dilly rear axle differential 12 central cylindrical portion matched in clearance is provided with in the middle of described differential mounting plate 5, bearing fixed seat 2 upper surface center is provided with the annular groove of upper opening, the external diameter being pressed into bearing 20 on the downside of the inner cylinder face of annular groove and differential mechanism forms matched in clearance,
The annular groove of the bell mouth shape position below described piston rod 18, clamping cover 17 and annular chamber, the circular hole two that fixed head 5 is arranged, bearing fixed seat 2 is coaxial.
Described rotary sleeve 16 external cylindrical surface is circumferentially uniform to be provided with six radial directions and to run through screwed hole 15, to select in one or more screwed hole 15 mounting handle bar 19 respectively in six screwed holes.
The through hole up and down one that the external thread rod component permeate lower platen 7 of the piston rod 18 lower end setting of described cylinder 9 is offered is fixedly connected with the top internal thread of clamping cover 17, through hole up and down one internal diameter that lower platen 7 is offered is less than the external diameter of the polished rod part above clamping cover 17 above female thread portion external diameter and piston rod 18 lower end external screw thread, is fixed on piston rod 18 by lower platen 7 by screwing of cover 17 of clamping.
The fixed form that described gripper shoe 3 upper surface is fixed with bearing fixed seat 2 gripper shoe 3 is fixedly connected with bearing fixed seat 2 by bolt 21.
Compared with prior art, tool of the present invention has the following advantages:
1. realize a cylinder, be pressed into motor rear axle differential mechanism bi-lateral support bearing simultaneously, enhance productivity;
2. differential mechanism adopts spring automatic reset, cost-saving, is easy to operation;
3. moving-member adopts guiding mechanism, and the axiality of bearing and differential mechanism installation position is good;
4. differential mechanism fixedly utilizes the design feature of dilly rear axle differential self, convenient fixing.
Four, accompanying drawing explanation
Fig. 1 is dilly rear axle differential bearing press-fitting device overall construction drawing
Fig. 2 is dilly rear axle differential bearing press-fitting device transverse center sectional view (removing two heel posts)
Fig. 3 is the I place zoomed-in view of Fig. 2
Fig. 4 is clamping cover and block mounting structure figure
Five, detailed description of the invention
Composition graphs 1 ~ 4, a kind of dilly rear axle differential bearing press-fitting device of the present invention comprises support 1, support 1 upper surface is fixed with horizontally disposed gripper shoe 3, column 1 vertical and arranged in parallel is fixed at two ends, gripper shoe 3 upper surface left and right respectively, the lower end of column 2 10, column 1, column 2 10 respectively be positioned at differential mounting plate about 5 two ends that gripper shoe 3 upper horizontal arranges and be slidably connected, column 1 between gripper shoe 3 and differential mounting plate 5, on column 2 10, kink has back-moving spring 1 respectively, back-moving spring 2 11, reset after pressing down in order to differential mounting plate 5, the top of described differential mounting plate 5 is provided with horizontally disposed lower platen 7, lower platen about 7 two ends respectively with column 1, column 2 10 is slidably connected, air cylinder fixed plate 8 is fixed on column 1, column 2 10 top and be positioned at the top of lower platen 7, air cylinder fixed plate 8 upper surface and be positioned at column 1, the central axis line centre position of column 2 10 is fixed with cylinder 9, piston rod 18 vertical direction of cylinder 9 arranges and can stretch out downwards, described gripper shoe 3 upper surface is positioned at column 1, column 2 10 centre position is fixed with bearing fixed seat 2.
The through hole up and down one that the external thread rod component permeate lower platen 7 of the piston rod 18 lower end setting of described cylinder 9 is offered is fixedly connected with the top internal thread of clamping cover 17, through hole up and down one internal diameter that lower platen 7 is offered is less than the external diameter of the polished rod part above clamping cover 17 above female thread portion external diameter and piston rod 18 lower end external screw thread, by screwing of cover 17 of clamping, lower platen 7 is fixed on piston rod 18, when piston rod 18 moves up and down, lower platen 7 is driven to move up and down, by column 1, the slide-and-guide effect of column 2 10 pairs of lower platens 7 improves bearing 13 on the upside of differential mechanism and presses down the rigidity of piston rod 18 in process and improve bearing 13 and differential mechanism on the upside of differential mechanism and be pressed into the axiality of bearing portion, described clamping cover 17 and piston rod 18 screw beneath portions internal diameter and become large and be the hollow bell mouth shape towards outer incline, above described clamping cover 17, cylindrical is provided with external screw thread, the internal thread that above itself and rotary sleeve 16, internal diameter is arranged forms screw pair, below rotary sleeve 16, internal diameter is greater than top internal diameter, and thereunder the lower edge portion of internal diameter is divided and is provided with and clamps outward-dipping gradient identical below cover 17, below rotary sleeve 16, internal diameter is less than the external diameter of horn mouth position below clamping cover 17, the horn mouth position making clamping overlap 17 when moving down to make rotary sleeve 16 is shunk, below the horn mouth being positioned at clamping cover 17, clamping cover 17 lower end is provided with the annular chamber of lower opening, in order to hold bearing 13 on the upside of differential mechanism, otch is run through to the radial direction offering six circumference uniform distributions with the threaded engagement part of piston rod 18 above it in clamping cover 17 lower end, the annular chamber of clamping cover 17 bell mouth shape position and below thereof is divided into six lobes, contraction distortion below clamping cover 17 when moving down is rotated to make rotary sleeve 16, its lower end annular cavity space diminishes and clamps bearing 13 on the upside of differential mechanism, the six lobe inside fronts holding bearing 13 annular chamber on the upside of differential mechanism are all fixed with block 14, move up when being pressed into the corresponding position of differential mechanism in order to prevent bearing 13 on the upside of differential mechanism, all do not contact between each block 14, in order to avoid the contraction of impact clamping cover 17 lower end annular chamber, described clamping cover 17 adopts plastic material to make, to improve its elastic deformability and service life, the circular hole two run through up and down is provided with in the middle of described differential mounting plate 5 left and right directions, make the face of cylinder in the middle of dilly rear axle differential 12 with circular hole two matched in clearance, in order to the located lateral of dilly rear axle differential 12, flange lower surface above the face of cylinder in the middle of dilly rear axle differential 12 is fitted in differential mounting plate 5 upper surface, dilly rear axle differential 12 is fixed under gravity, bearing fixed seat 2 upper surface center is provided with the annular groove of upper opening, the external diameter being pressed into bearing 20 on the downside of the inner cylinder face of annular groove and differential mechanism forms matched in clearance, bearing 20 is pressed in order to place on the downside of differential mechanism, the fixed form that described gripper shoe 3 upper surface is fixed with bearing fixed seat 2 gripper shoe 3 is fixedly connected with bearing fixed seat 2 by bolt 21.
Described rotary sleeve 16 external cylindrical surface is circumferentially uniform to be provided with six radial directions and to run through screwed hole 15, and in six screwed holes, to select in one or more screwed hole 15 mounting handle bar 19 respectively, to make, operator is convenient rotates rotary sleeve 16.
The annular groove of the bell mouth shape position below described piston rod 18, clamping cover 17 and annular chamber, the circular hole two that fixed head 5 is arranged, bearing fixed seat 2 is coaxial, to make to be pressed into the axle bearing mount portion position that bearing 20 is pressed into differential mechanism top and bottom respectively exactly on the upside of differential mechanism on the downside of bearing 13, differential mechanism.
The piston rod 18 of control cylinder 9 rises to top, lower platen 7 clamps cover 17, rotary sleeve 16 rises to its extreme higher position, being pressed into bearing 20 on the downside of differential mechanism is installed in the annular groove of bearing fixed seat 2, not bearings mounted dilly rear axle differential 12 is mounted on differential mounting plate 5, rotary handle bar 19, make to screw cover to move up, bell mouth shape position internal diameter below clamping cover 17 and external diameter become large, clamping cover 17 lower end annular chamber becomes large to being applicable to holding bearing 13 on the upside of differential mechanism, bearing on the upside of differential mechanism 13 to be put into and hand rest is lived, prevent bearing 13 on the upside of differential mechanism from dropping, another hand reversely rotates handlebar 19, make to screw cover 16 to move down, bearing 13 on the upside of clamping differential mechanism, both hands leave dilly rear axle differential bearing press-fitting device, control piston bar 18 moves down, on the upside of differential mechanism, bearing 13 promotes dilly rear axle differential 12 and moves down under differential mounting plate 5 guide effect, back-moving spring 1, back-moving spring 2 11 is compressed, differential mechanism is displaced downwardly to its lower end and encounters when to be pressed into bearing 20 on the downside of differential mechanism, piston rod 18 continues to move down, bearing 13 on the upside of differential mechanism, the upper end that bearing 20 is pressed into dilly rear axle differential 12 simultaneously is respectively pressed on the downside of differential mechanism, bottom end bearing installation position, rotate on rotary sleeve 16 and move, to loosen bearing 13 on the upside of differential mechanism, piston rod 18 moves to its top, lower platen 7 clamps cover 17, rotary sleeve 16 rises to its extreme higher position, back-moving spring 1 simultaneously, back-moving spring 2 11 holds up differential mounting plate 5 because of resilience, install bearing 13 on the upside of differential mechanism, the dilly rear axle differential 12 being pressed into bearing 20 on the downside of differential mechanism holds up, because the external diameter being pressed into bearing 20 on the downside of dilly rear axle differential 12 is less than circular hole two internal diameter of differential mounting plate 5 setting, this dilly rear axle differential 12 is removed above differential mounting plate 5, realize the synchronous press mounting of a differential mechanism upper and lower sides bearing, complete a working cycles, next dilly rear axle differential 12 bearing press-fit repetition above-mentioned steps.
Claims (4)
1. a dilly rear axle differential bearing press-fitting device comprises support (1), it is characterized in that: support (1) upper surface is fixed with horizontally disposed gripper shoe (3), column one (6) vertical and arranged in parallel is fixed at two ends, gripper shoe (3) upper surface left and right respectively, the lower end of column two (10), column one (6), column two (10) respectively be positioned at differential mounting plate (5) two ends, left and right that gripper shoe (3) upper horizontal arranges and be slidably connected, column one (6) between gripper shoe (3) and differential mounting plate (5), on column two (10), kink has back-moving spring one (4) respectively, back-moving spring two (11), the top of described differential mounting plate (5) is provided with horizontally disposed lower platen (7), lower platen (7) two ends, left and right respectively with column one (6), column two (10) is slidably connected, air cylinder fixed plate (8) is fixed on column one (6), column two (10) top and be positioned at the top of lower platen (7), air cylinder fixed plate (8) is positioned at column one (6), the central axis line centre position of column two (10) is fixed with cylinder (9), piston rod (18) vertical direction of cylinder (9) arranges and can stretch out downwards, described gripper shoe (3) upper surface is positioned at column one (6), column two (10) centre position is fixed with bearing fixed seat (2),
Piston rod (18) below of described cylinder (9) is simultaneously overlapped (17) upper end with lower platen (7) be fixedly connected with being clamped, clamping cover (17) is positioned at lower platen (7) below, described clamping cover (17) is fixedly connected with beneath portions in the hollow bell mouth shape towards outer incline with piston rod (18), described clamping cover (17) top cylindrical is provided with external screw thread, the internal thread that itself and rotary sleeve (16) top internal diameter are arranged forms screw pair, rotary sleeve (16) below internal diameter is greater than top internal diameter, and thereunder the lower edge portion of internal diameter is divided to be provided with and is overlapped the identical outward-dipping gradient in (17) below with clamping, rotary sleeve (16) below internal diameter is less than the external diameter of horn mouth position, clamping cover (17) below, below the bell mouth shape position being positioned at clamping cover (17), clamping cover (17) lower end is provided with the annular chamber of lower opening, in order to hold bearing on the upside of differential mechanism (13), otch is run through to the radial direction offering six circumference uniform distributions with the threaded engagement part of piston rod (18) above it in clamping cover (17) lower end, the annular chamber of clamping cover (17) bell mouth shape position and below thereof is divided into six lobes, the six lobe inside fronts holding bearing (13) annular chamber on the upside of differential mechanism are all fixed with block (14), each block does not all contact between (14), the circular hole two run through up and down with dilly rear axle differential (12) central cylindrical portion matched in clearance is provided with in the middle of described differential mounting plate (5), bearing fixed seat (2) upper surface center is provided with the annular groove of upper opening, the external diameter being pressed into bearing (20) on the downside of the inner cylinder face of annular groove and differential mechanism forms matched in clearance,
The circular hole two that the bell mouth shape position of described piston rod (18), clamping cover (17) below and annular chamber, fixed head (5) be upper to be arranged, the annular groove of bearing fixed seat (2) are coaxial.
2. dilly rear axle differential bearing press-fitting device according to claim 1, it is characterized in that: described rotary sleeve (16) external cylindrical surface is circumferentially uniform to be provided with six radial directions and to run through screwed hole (15), in six screwed holes, to select in one or more screwed hole (15) mounting handle bar (19) respectively.
3. dilly rear axle differential bearing press-fitting device according to claim 1, it is characterized in that: piston rod (18) below is simultaneously with lower platen (7) with clamp and overlap (17) upper end fixed connection structure and be: the through hole up and down offered of the external thread rod component permeate lower platen (7) that piston rod (18) lower end of described cylinder (9) is arranged with clamp the top internal thread overlapping (17) and be fixedly connected with, a through hole up and down internal diameter that lower platen (7) is offered is less than the external diameter clamping the polished rod part of overlapping above (17) above female thread portion external diameter and piston rod (18) lower end external screw thread.
4. dilly rear axle differential bearing press-fitting device according to claim 1, is characterized in that: described gripper shoe (3) upper surface is fixed with the fixed form of bearing fixed seat (2): gripper shoe (3) be fixedly connected with bearing fixed seat (2) by bolt (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510482095.XA CN105081739B (en) | 2015-08-07 | 2015-08-07 | A kind of dilly rear axle differential bearing press-fitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510482095.XA CN105081739B (en) | 2015-08-07 | 2015-08-07 | A kind of dilly rear axle differential bearing press-fitting device |
Publications (2)
| Publication Number | Publication Date |
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| CN105081739A true CN105081739A (en) | 2015-11-25 |
| CN105081739B CN105081739B (en) | 2018-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510482095.XA Expired - Fee Related CN105081739B (en) | 2015-08-07 | 2015-08-07 | A kind of dilly rear axle differential bearing press-fitting device |
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