CN109719486B - Pressure device for assembling bushing and box cover - Google Patents
Pressure device for assembling bushing and box cover Download PDFInfo
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- CN109719486B CN109719486B CN201811642132.9A CN201811642132A CN109719486B CN 109719486 B CN109719486 B CN 109719486B CN 201811642132 A CN201811642132 A CN 201811642132A CN 109719486 B CN109719486 B CN 109719486B
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- fixed
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Abstract
The invention belongs to the technical field of part installation, and particularly discloses a pressure device for assembling a bushing and a box cover, which comprises a rack, wherein a hydraulic press is arranged on the rack, an output shaft of the hydraulic press is connected with an annular block in a sliding manner, a stop block is also fixed on the output shaft, and the stop block is positioned right below the annular block; two ends of the annular block are provided with telescopic rods in opposite direction, and the telescopic rods are fixed with supporting rods; the bottom ends of the supporting rods are rotatably connected with rotating shafts, pressing plates are fixed on one surfaces of the rotating shafts facing the hydraulic machine, a plurality of through holes are correspondingly formed in the two pressing plates, bolts are arranged in the through holes, and nuts are arranged at two ends of each bolt; the other end of the rotating shaft is provided with a thread; the rack is also provided with a rack meshed with the rotating shaft, and the lower half section of the rack is a smooth surface; the invention aims to solve the problem that when a bush is arranged on a box cover, generated scrap iron enters the interior of an engine along with a box cover.
Description
Technical Field
The invention belongs to the technical field of part installation, and particularly discloses a pressure device for assembling a bushing and a box cover.
Background
The lining is a matching part used outside mechanical parts to achieve the functions of sealing, wear protection and the like, and is a ring sleeve playing the role of a gasket. In the structure of an automobile, parts are abraded between a rotating shaft of an engine and a box cover of the engine due to long-term friction, and the parts are required to be replaced when the shaft and the box cover are abraded to a certain degree.
The bushing is installed, the opening of the box cover is generally upwards manually, and the stress area of the box cover is larger when the hydraulic press presses the bushing, so that the box cover is not easily damaged; the bottom end of the bushing is placed in the shaft hole of the box cover, then the bushing is lightly knocked, and the smooth part at the bottom end of the bushing is used for installing the bottom end of the bushing in the shaft hole to complete positioning; and pressing the bush into the shaft hole by using a hydraulic press. Because adopt interference fit between bush and the case lid, the in-process in shaft hole is impressed the bush to the hydraulic press, take place strong friction between the pore wall in shaft hole and the bush, the bush can receive certain damage, some iron fillings can be scraped off from the bush to the pore wall in shaft hole, iron fillings enter into to the case lid inside through the shaft hole very easily, if not in time clear up, these iron fillings can get into inside the engine when the case lid is installed on the engine, can cause serious damage to the engine, cause danger on the way of going of car more easily.
Disclosure of Invention
The invention discloses a bush and a pressure device for assembling a case cover, and aims to solve the problem that when the bush is installed on the case cover, generated scrap iron enters an engine along with the case cover.
In order to solve the above problems, the basic scheme of the invention is as follows:
a pressure device for assembling a bush and a box cover comprises a frame, wherein a hydraulic press is arranged on the frame, an output shaft of the hydraulic press is connected with an annular block in a sliding manner, a stop block is also fixed on the output shaft, and the stop block is positioned right below the annular block; two ends of the annular block are provided with telescopic rods in opposite direction, and the telescopic rods are fixed with supporting rods; the bottom ends of the supporting rods are rotatably connected with rotating shafts, pressing plates are fixed on one surfaces of the rotating shafts facing the hydraulic machine, a plurality of through holes are correspondingly formed in the two pressing plates, bolts are arranged in the through holes, and nuts are arranged at two ends of each bolt; the other end of the rotating shaft is provided with a tooth socket; the rack is also provided with a rack meshed with the tooth grooves of the rotating shaft, and the lower half section of the rack is a smooth surface.
Has the advantages that:
1. in this scheme, the clamp plate that utilizes both sides presss from both sides tight location to the case lid, the downward extrusion of the output shaft of hydraulic press of deuterogamying to fix the case lid, prevent that the skew from appearing in the installation in-process in the case lid, cause the installation failure of bush.
2. In this scheme, utilize the upward movement of hydraulic press output shaft, drive the case lid and rotate, throw out the inside remaining iron fillings of case lid, prevent that iron fillings from entering into the inside to the engine along with the installation of case lid.
Furthermore, a groove is formed in the frame, a blade is rotationally connected in the groove, a first helical gear is fixed on the blade and meshed with a second helical gear, the second helical gear is rotationally connected in the groove, a support is fixed on an output shaft of the hydraulic machine, and a helical rack meshed with the second helical gear is fixed on the support.
Has the advantages that:
1. in this scheme, the downward motion that utilizes hydraulic press output shaft drives the blade and rotates, and the air current of production can cool down shaft hole department, prevents that the bush from being heated the inflation, and the damage that leads to the bush to receive in the installation is bigger.
2. In this scheme, when the hydraulic press output shaft upward movement, drive the blade rotation equally, the air current of production from top to bottom, the rotation of cooperation case lid, the iron fillings in the clearance case lid that can be better.
Further, the diameter of the second bevel gear is larger than the diameter of the first bevel gear.
The diameter of the second bevel gear is larger than that of the first bevel gear, and the rotating speed of the first bevel gear is accelerated by utilizing the transmission ratio, so that the rotating speed of the blade is increased, and the airflow generated by the blade is strengthened.
Furthermore, the upper end and the lower end of the pressing plate are both fixed with a baffle plate.
The upper end and the lower end of the pressing plate are provided with the fixed baffle plates, the box cover is limited by the baffle plates, and the box cover is prevented from being separated from the clamping of the pressing plate due to the effect of centrifugal force in the rotating process.
Furthermore, an anti-skid cushion pad is arranged on one surface of the pressure plate facing to the output shaft of the hydraulic machine.
The anti-skid buffer cushion is arranged on the pressing plate, so that the pressure applied by the pressing plate to the box cover can be reduced, and the box cover is prevented from being deformed due to overlarge pressure; meanwhile, the sliding of the box cover can be effectively prevented.
Drawings
FIG. 1 is a front view of an embodiment of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;
FIG. 3 is an enlarged schematic view at B of FIG. 1;
fig. 4 is a sectional view in the direction C-C in fig. 1.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the hydraulic press comprises a frame 1, a hydraulic press 2, a hydraulic hammer 3, an annular block 4, an expansion link 5, a support rod 6, a rotating shaft 7, a pressing plate 8, a bolt 9, a nut 10, a rack 11, a stop block 12, a baffle plate 13, a fixed shaft 14, a first helical gear 15, a blade 16, a second helical gear 17, a helical rack 18, a support 19, a groove 20 and a through hole 21.
The embodiment is basically as shown in the attached figures 1 and 2:
a pressure device for assembling a bush and a box cover comprises a rack 1, wherein a bolt 9 on the rack 1 is connected with a hydraulic machine 2, a hydraulic hammer 3 of the hydraulic machine 2 is vertically and slidably connected with an annular block 4, a stop block 12 is welded on the hydraulic hammer 3, and the stop block 12 is positioned right below the annular block 4; telescopic rods 5 are welded at the left end and the right end of the annular block 4, and vertically downward supporting rods 6 are welded at the end parts of the telescopic rods 5; rotating shafts 7 are rotatably connected to the bottom ends of the supporting rods 6, pressing plates 8 are welded to opposite surfaces of the two rotating shafts 7, baffles 13 are welded to the upper ends and the lower ends of the pressing plates 8, four screw holes are formed in the two pressing plates 8, the screw holes in the two pressing plates are opposite to the hydraulic hammer 3, bolts 9 are mounted in the screw holes, nuts 10 are connected to two ends of each bolt 9 in a threaded mode, and anti-skid buffering rubber pads are bonded to opposite surfaces of the two pressing plates 8; tooth grooves are formed in the end, far away from the pressing plate 8, of the rotating shaft 7; the rack 1 is also welded with a rack 11 meshed with a tooth groove of the rotating shaft 7, and the lower half section of the rack 11 is a smooth surface.
As shown in fig. 2, 3 and 4: a groove 20 is formed in the rack 1, a fixed shaft 14 is welded in the groove 20, blades 16 are welded on the upper surface of a first bevel gear 15, the first bevel gear 15 is rotatably connected to the fixed shaft 14, a second bevel gear 17 is meshed with the first bevel gear 15, the diameter of the second bevel gear 17 is larger than that of the first bevel gear 15, and the second bevel gear 17 is rotatably connected in the groove 20; a support 19 is welded on an output shaft of the hydraulic machine 2, a vertical downward helical rack 18 is welded on the support 19, the helical rack 18 is meshed with a second helical gear 17, the second helical gear 17 converts the vertical sliding of the rack 11 into the rotation in the horizontal direction, a through hole 21 is formed in the rack 1, and the helical rack 18 can penetrate through the through hole 21 to prevent the rack 1 from blocking the movement of the helical rack 18.
The specific implementation process is as follows:
placing the box cover with the positioned bushing on the frame 1, enabling the shaft hole of the box cover and the bushing to be over against the hydraulic hammer 3 of the hydraulic press 2, sliding the annular block 4 downwards, and enabling the annular block 4 to drive the telescopic rod 5, the supporting rod 6 and the pressing plates 8 to move downwards until the two pressing plates 8 are respectively positioned at the left end and the right end of the box cover; the nuts 10 at the two ends of the bolt 9 are rotated, the pressing plate 8 is pushed by the nuts 10, the pressing plate 8 extrudes and enables the telescopic rod 5 to contract, and the pressing plate 8 moves towards the box cover until the clamping plate 8 is tightly attached to the box cover.
When the pressing plate 8 moves towards the box cover, the pressing plate 8 drives the rotating shaft 7 to slide towards the box cover, and the rotating shaft 7 at the moment is positioned at the lower half section of the rack 11 because the rack 11 cannot drive the rotating shaft 7 to rotate.
The hydraulic press 2 is started, the hydraulic hammer 3 of the hydraulic press 2 moves downwards, and when the hydraulic hammer 3 is in contact with the bush, the hydraulic hammer 3, the frame 1 and the pressing plate 8 act together to complete the positioning of the box cover, so that the box cover is prevented from sliding in the installation process to cause the installation failure of the bush; in the process that the hydraulic hammer 3 presses the bush into the shaft hole of the box cover, the hole wall of the shaft hole scrapes off a part of scrap iron from the bush, and the scrap iron is remained in the box cover.
As shown in fig. 2 and 4: when the hydraulic hammer 3 of the hydraulic press 2 moves downwards, the bracket 19 is driven to move downwards, the bracket 19 drives the helical rack 18 to move downwards, the second helical gear 17 is driven to rotate when the helical rack moves downwards, the second helical rack 18 converts the downward movement of the helical rack 18 into clockwise rotation in the horizontal direction, the second helical gear 17 drives the first helical gear 15 to rotate anticlockwise, the first helical gear 15 drives the blade 16 to rotate anticlockwise, the blade 16 generates upward air flow, and the air flow cools the axle hole.
After the bushing is installed, the hydraulic press 2 is started, the hydraulic hammer 3 of the hydraulic press 2 moves upwards, and in the process that the hydraulic hammer 3 moves upwards by a certain distance, the hydraulic hammer 3 does not drive the annular block 4 to move upwards until the annular block 4 abuts against the stop block 12; when the annular block 4 abuts against the stop 12, the hydraulic hammer 3 drives the annular block 4 to move upwards, and the hydraulic hammer 3 is separated from the box cover at the moment.
The hydraulic hammer 3 drives the annular block 4 to move upwards, and the annular block 4 drags the telescopic rod 5, the supporting rod 6 and the pressing plate 8 to drive the box cover to move upwards so as to suspend the box cover in the air; the upward movement of the supporting rod 6 and the pressing plate 8 drives the rotating shaft 7 to move upwards until the rotating shaft 7 moves to a position with teeth at the upper end of the rack 11, the rotating shaft 7 is meshed with the rack 11, the rotating shaft 7 continues to move upwards, and the rotating shaft 7 is rotated through the meshing of the rack 11 and the rotating shaft 7; the rotation of axis of rotation 7 then drives the case lid upset, and the iron fillings that the case lid was inside are emptyd out at the in-process of upset to the case lid.
As shown in fig. 2: when the hydraulic hammer 3 moves upwards, the support 19 is driven to move upwards, the support 19 drives the helical rack 18 to move upwards, the second helical gear 17 is driven to rotate when the helical rack moves upwards, the second helical rack 18 converts the upward movement of the helical rack 18 into anticlockwise rotation in the horizontal direction, the second helical gear 17 drives the first helical gear 15 to rotate clockwise, the first helical gear 15 drives the blade 16 to rotate clockwise, the blade 16 generates downward airflow, the airflow plays an adsorption role, and scrap iron in the box cover is adsorbed.
After the scrap iron is cleaned up, the hydraulic press 2 is closed, the nut 10 is loosened, the pressing plate 8 stops clamping the box cover, and the box cover is taken down.
The above description is only an example of the present invention and common general knowledge in the art is not described here too much. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (4)
1. The utility model provides a pressure device is used in assembly of bush and case lid which characterized in that: the hydraulic press comprises a frame, wherein a hydraulic press is arranged on the frame, an output shaft of the hydraulic press is connected with an annular block in a sliding manner, and a stop block is fixed on the output shaft and is positioned right below the annular block; two ends of the annular block are provided with telescopic rods in opposite direction, and the telescopic rods are fixed with supporting rods; the bottom ends of the supporting rods are rotatably connected with rotating shafts, pressing plates are fixed on one surfaces of the rotating shafts facing the hydraulic machine, a plurality of through holes are correspondingly formed in the two pressing plates, bolts are arranged in the through holes, and nuts are arranged at two ends of each bolt; the other end of the rotating shaft is provided with a tooth socket; the rack is also provided with a rack meshed with the tooth grooves of the rotating shaft, and the lower half section of the rack is a smooth surface; the rack is provided with a groove, a blade is rotationally connected in the groove, a first helical gear is fixed on the blade and meshed with a second helical gear, the second helical gear is rotationally connected in the groove, an output shaft of the hydraulic machine is fixed with a support, and a helical rack meshed with the second helical gear is fixed on the support.
2. The pressure device for assembling a liner and a box cover according to claim 1, wherein: the diameter of the second bevel gear is larger than that of the first bevel gear.
3. The pressure device for assembling a liner and a box cover according to claim 2, wherein: the upper end and the lower end of the pressing plate are both fixed with a baffle.
4. The pressure device for assembling a liner and a box cover according to claim 3, wherein: and an anti-skid cushion pad is arranged on one surface of the pressing plate, which faces to the output shaft of the hydraulic machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811642132.9A CN109719486B (en) | 2018-12-29 | 2018-12-29 | Pressure device for assembling bushing and box cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811642132.9A CN109719486B (en) | 2018-12-29 | 2018-12-29 | Pressure device for assembling bushing and box cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109719486A CN109719486A (en) | 2019-05-07 |
| CN109719486B true CN109719486B (en) | 2020-05-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811642132.9A Active CN109719486B (en) | 2018-12-29 | 2018-12-29 | Pressure device for assembling bushing and box cover |
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| Country | Link |
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| CN (1) | CN109719486B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350627A (en) * | 2011-10-07 | 2012-02-15 | 无锡动力工程股份有限公司 | Special machine tool for press mounting of camshaft bush of diesel engine |
| CN202607206U (en) * | 2012-06-08 | 2012-12-19 | 十堰东风采埃孚减振器有限公司 | Press mounting device for rubber bush of vibration damper |
| CN203156672U (en) * | 2013-04-25 | 2013-08-28 | 江苏宝时达动力科技有限公司 | Iron bush press fitting device for engine intake manifold |
| CN104028999A (en) * | 2014-06-30 | 2014-09-10 | 长城汽车股份有限公司 | Pressing machine for liner |
| CN204019076U (en) * | 2014-07-11 | 2014-12-17 | 安徽全柴动力股份有限公司 | A kind of instrument that press-fits diesel-engine body cam shaft bush |
| CN204262695U (en) * | 2014-09-22 | 2015-04-15 | 杭州德曼汽车零部件有限公司 | Engine blower bracket housing assembly bushing press-mounting work mould |
-
2018
- 2018-12-29 CN CN201811642132.9A patent/CN109719486B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102350627A (en) * | 2011-10-07 | 2012-02-15 | 无锡动力工程股份有限公司 | Special machine tool for press mounting of camshaft bush of diesel engine |
| CN202607206U (en) * | 2012-06-08 | 2012-12-19 | 十堰东风采埃孚减振器有限公司 | Press mounting device for rubber bush of vibration damper |
| CN203156672U (en) * | 2013-04-25 | 2013-08-28 | 江苏宝时达动力科技有限公司 | Iron bush press fitting device for engine intake manifold |
| CN104028999A (en) * | 2014-06-30 | 2014-09-10 | 长城汽车股份有限公司 | Pressing machine for liner |
| CN204019076U (en) * | 2014-07-11 | 2014-12-17 | 安徽全柴动力股份有限公司 | A kind of instrument that press-fits diesel-engine body cam shaft bush |
| CN204262695U (en) * | 2014-09-22 | 2015-04-15 | 杭州德曼汽车零部件有限公司 | Engine blower bracket housing assembly bushing press-mounting work mould |
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| Publication number | Publication date |
|---|---|
| CN109719486A (en) | 2019-05-07 |
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