CN210414373U

CN210414373U - Box-type oil seal installation device of crankshaft

Info

Publication number: CN210414373U
Application number: CN201921282412.3U
Authority: CN
Inventors: 林志明; 胡娅婷
Original assignee: Qingdao Hilywill Advanced Materials Technology Co ltd
Current assignee: Qingdao Hilywill Advanced Materials Technology Co ltd
Priority date: 2019-08-08
Filing date: 2019-08-08
Publication date: 2020-04-28
Anticipated expiration: 2029-08-08

Abstract

The utility model relates to a box-type oil seal installation device of a crankshaft, which comprises a shell, a positioning block, a pressing block and a driving rod; the shell, the positioning block and the pressing block are arranged concentrically, the shell and the pressing block are both of cylindrical structures with one open end, and the shell is sleeved on the periphery of the pressing block; the driving rod is provided with threads, the pressing block is in threaded connection with the driving rod, and the shell and the positioning block are respectively in rotary connection with two ends of the threads; the gap between the shell and the positioning block is a mounting groove, the side wall of the compression block can extend out of or retract into the mounting groove, and the box-type oil seal is in clearance fit with the mounting groove; and one end of the driving rod extending out of the shell is provided with a connecting square hole. One use of the utility model is for the installation of the small batch of box-type oil blanket of car bent axle tip.

Description

Box-type oil seal installation device of crankshaft

Technical Field

The utility model relates to an automobile assembling field, more specifically, the utility model relates to a box-type oil blanket installation device of bent axle.

Background

With the continuous development of automobile technology, higher and higher requirements are put forward on the service life of an automobile, and the service life of an engine is directly influenced by the service life of an oil seal of a crankshaft because the end part of the crankshaft is connected with the engine cylinder body. In order to ensure that the crankshaft oil seal realizes effective sealing in a longer life cycle, the crankshaft oil seal begins to evolve towards a box-type oil seal gradually.

The box type oil seal has longer service life than a common oil seal, so the replacement period is longer, the box type oil seal is usually formed by sleeving an outer ring and an inner ring, the horizontal pressing-in of the box type oil seal is ensured during the installation due to the special structure of the box type oil seal, the stress is uniform, and the box type oil seal cannot be subjected to larger impact force. The installation of crankshaft oil seals in the prior art is the installation of automation equipment on the production line, but later maintenance and new product verification stage, owing to do not have suitable automatic assembly line, the installation of oil seal is especially difficult, directly influences the reliability of later stage product.

Therefore, a simple oil seal installation device is needed, which can solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a simple and easy oil blanket installation device, the later stage maintenance and the new product of being convenient for are verified the stage and are used.

According to an aspect of the present invention, there is provided a box-type oil seal mounting device for a crankshaft, comprising a housing, a positioning block, a pressing block, and a driving rod; the shell, the positioning block and the pressing block are arranged concentrically, the shell and the pressing block are both of cylindrical structures with one open end, and the shell is sleeved on the periphery of the pressing block; the driving rod is provided with threads, the pressing block is in threaded connection with the driving rod, and the shell and the positioning block are respectively in rotary connection with two ends of the threads; the gap between the shell and the positioning block is a mounting groove, the side wall of the compression block can extend out of or retract into the mounting groove, and the box-type oil seal is in clearance fit with the mounting groove; and one end of the driving rod extending out of the shell is provided with a connecting square hole.

Through this scheme, put into the mounting groove to the box-type oil blanket, compress tightly this device to treating the installation position to through locating piece location back, the installation region is being treated to the box-type oil blanket, utilizes speeder wrench to be connected to the connecting square hole of actuating lever, and the rotatory actuating lever makes the compact heap with the ejecting mounting groove of box-type oil blanket, makes the atress all around of box-type oil blanket more even, realizes that convenient installs the box-type oil blanket. The device has the advantages of simple structure, convenient operation and lower cost, and is suitable for the installation and later maintenance and use of small-batch box-type oil seals.

Preferably, the circle center of the positioning block is provided with a positioning boss, and the positioning boss is matched with a middle concave hole in the end part of the crankshaft.

Through the scheme, the accurate positioning of the device can be realized.

Preferably, a plurality of positioning rods are vertically arranged on the positioning block, and the arrangement of the positioning rods is consistent with that of the positioning holes on the end face of the crankshaft.

Through this scheme, make this device location more accurate to be favorable to preventing this device slope in the operation process.

Preferably, the positioning rod penetrates through the pressing block and is in sliding connection with the pressing block.

Through this scheme, prevent that the compact heap from following to change to can play the guide effect, prevent the slope of compact heap.

Preferably, the positioning rod penetrates through the shell and is in sliding connection with both the shell and the positioning block.

Through this scheme, the length that the locating lever stretches out the locating piece can be adjusted, prevents to remain impurity in the bent axle tip locating hole and inclines when leading to this device location.

Preferably, the housing is provided with clamping means at its periphery for securing the housing to a position to be mounted.

Through this scheme, fix this device, make the installation of box-shaped oil blanket more laborsaving.

Preferably, the clamping device comprises a tightening barrel and at least three clamping jaws, the tightening barrel is sleeved outside the shell, and the tightening barrel is in threaded connection with the driving rod; the clamping jaws are hinged to the end edge of the housing, and the take-up reel can squeeze the clamping jaws by moving.

Through this scheme, the tight clamp of clamping jaw just can be realized to the rotatory actuating lever, and is simple and convenient more.

Preferably, the housing is provided at an outer periphery thereof with a jaw groove having a depth equal to the jaw thickness.

Through this scheme, make and tighten up a section of thick bamboo and compress tightly no longer increase pressure behind the clamping jaw, avoid engine cylinder body or this device to damage.

The utility model discloses a technological effect lies in, this device simple structure, convenient operation, low cost is convenient for carry out the maintenance use on probation or later stage of small batch's installation to the box-type oil blanket of bent axle end.

Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic sectional structural view of a first box-type oil seal installation device according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of the first box-type oil seal installation device of the present invention when ejecting the box-type oil seal.

Fig. 3 is a schematic top view of a first embodiment of the present invention.

Fig. 4 is a schematic bottom view of the first box-type oil seal installation device according to the present invention.

Fig. 5 is a schematic sectional decoupling view of a box-shaped oil seal installation device according to the second embodiment of the present invention.

Fig. 6 is a schematic diagram of the structure at a in fig. 5.

Fig. 7 is a schematic sectional view of the cartridge oil seal mounting device according to the second embodiment of the present invention when it is clamped.

Fig. 8 is a schematic sectional view of the cartridge oil seal installation device of the second embodiment of the present invention when ejecting the cartridge oil seal.

Wherein like parts are designated by like reference numerals throughout the several views; the figures are not drawn to scale.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.

The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.

Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

Example one

As shown in fig. 1 to 4, the cartridge oil seal mounting device of the crankshaft in the present embodiment includes a housing 1100, a positioning block 1200, a pressing block 1300, and a driving rod 1400; the shell 1100, the positioning block 1200 and the pressing block 1300 are concentrically arranged, the shell 1100 and the pressing block 1300 are both cylindrical structures with one open end, and the shell 1100 is sleeved on the periphery of the pressing block 1300; the driving rod 1400 is provided with a thread 1410, the pressing block 1300 is in threaded connection with the driving rod 1400, and the shell 1100 and the positioning block 1200 are respectively connected to two ends of the thread 1410 in a rotating manner; a gap between the shell 1100 and the positioning block 1200 is a mounting groove 1110, the end of the side wall of the pressing block 1300 can extend out of or retract into the mounting groove 1110, and the box-type oil seal 2000 is in clearance fit with the mounting groove 1110; a connecting square hole 1420 is formed at one end of the driving rod 1400 extending out of the housing 1100.

Through this scheme of this embodiment, put into mounting groove 1110 box-shaped oil blanket 2000, compress tightly this device to treating the installation site to through locating piece 1200 location back, box-shaped oil blanket 2000 is treating the installation region, utilizes speeder wrench to be connected to in the square hole 1420 of being connected of actuating lever 1400, rotatory actuating lever 1400, make compact heap 1300 with the ejecting mounting groove 1110 of box-shaped oil blanket 2000, this mounting means can make the atress all around of box-shaped oil blanket 2000 even, realize that convenient installs box-shaped oil blanket. The device has simple structure, can be matched with a quick wrench for use, is convenient to operate, has lower cost, and is suitable for the installation and later maintenance and use of the box-type oil seal 2000 in small batches.

In this embodiment or other embodiments, a positioning boss 1210 is disposed at a center of the positioning block 1200, and the positioning boss 1210 is matched with a concave hole in the middle of the end of the crankshaft, so as to achieve accurate positioning of the device.

In this embodiment or other embodiments, a plurality of positioning rods 1220 are vertically arranged on the positioning block 1200, the arrangement of the positioning rods 1220 is consistent with the arrangement of the positioning holes (not shown in the figure) on the end face of the crankshaft, the positioning accuracy of the device is further improved, and the positioning of the positioning rods 1220 is also beneficial to preventing the device from inclining in the operation process, so that the stress of the box-type oil seal is uneven.

In this embodiment or other embodiments, the positioning rod 1220 penetrates through the pressing block 1300 and is slidably connected with the pressing block 1300, so as to prevent the pressing block 1300 from following, and can play a guiding role to prevent the pressing block 1300 from inclining.

In this embodiment or other embodiments, the positioning rod 1220 penetrates through the housing 1100 and is slidably connected to both the housing 1100 and the positioning block 1200. The length of the positioning rod 1220 extending out of the positioning block 1200 can be adjusted, and impurities left in the positioning hole at the end of the crankshaft are prevented from inclining when the device is positioned.

In this embodiment or other embodiments, in order to ensure that the cartridge type oil seal 2000 does not fall out of the mounting groove 1110 during the vertical mounting process, the pressing block 1300 is provided with a magnet (not shown in the figure), and the cartridge type oil seal 2000 is temporarily fixed by the magnetism of the magnet.

The technical effect of this embodiment lies in, this device simple structure, convenient operation, low cost is convenient for carry out the small batch installation trial or the maintenance use in later stage to the box-type oil blanket of bent axle end.

Example two

As shown in fig. 5 to 8, the cartridge oil seal installation device in the present embodiment is different from the above-mentioned embodiments in that the housing 1100 is provided with a clamping device at its outer periphery for fixing the housing 1100 to a position to be installed. After the device is fixed, the device does not need to be manually compressed, so that the installation of the box-type oil seal is more labor-saving.

In this embodiment or other embodiments, the clamping device includes a tightening cylinder 1510 and at least three clamping jaws 1520, the tightening cylinder 1510 is sleeved outside the housing 1100, and the tightening cylinder 1510 is in threaded connection with the driving rod 1400; the jaws 1520 are hinged to the end edges of the housing 1100, and the tightening sleeve 1510 can be moved to squeeze the jaws 1520.

In this embodiment, the second thread is disposed on the driving rod 1400 exposed outside the casing 1100, the tightening sleeve 1510 is engaged with the second thread, and the tightening sleeve 1510 is slidably connected to the casing, and the driving rod 1400 is rotated to move the tightening sleeve 1510 under the action of the thread, so as to push the clamping jaw 1520 to rotate along the hinge shaft and to squeeze inward, thereby achieving the clamping of the clamping jaw, and the clamping process is simpler and more convenient.

In this or other embodiments, the housing 1100 is provided with a jaw slot 1120 on the outer periphery thereof, and the depth of the jaw slot 1120 is equal to the thickness of the jaw 1520, so that the jaw 1520 can be maintained on a perpendicular line with the outer periphery of the housing 1100, and after the jaw 1520 is tightened by the tightening cylinder 1510, the continued movement of the tightening cylinder 1520 does not increase the pressure, thereby preventing the engine block or the device from being damaged.

In this embodiment, a non-slip pad 1521 is fixed on the inner side surface of the clamping jaw 1520, and the non-slip pad 1521 is a rubber sheet, for example, and is beneficial to improving the friction force after clamping. This slipmat 1521 is detachable structure, is convenient for change different thickness according to actual need.

In this embodiment, to ensure that the cartridge oil seal does not enter the to-be-installed position before clamping, in the initial position, that is, after the cartridge oil seal 2000 is installed in the installation groove 1110, the end surface of the cartridge oil seal does not exceed the lower end surface of the tightening sleeve 1510, so that the cartridge oil seal 2000 is pushed out of the installation groove 1110 only after the tightening sleeve 1510 presses the clamping jaws 1520.

Although some specific embodiments of the present invention have been described in detail by way of illustration, it should be understood by those skilled in the art that the above illustration is only for purposes of illustration and is not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A box-type oil seal mounting device of a crankshaft is characterized by comprising a shell, a positioning block, a pressing block and a driving rod; the shell, the positioning block and the pressing block are arranged concentrically, the shell and the pressing block are both of cylindrical structures with one open end, and the shell is sleeved on the periphery of the pressing block; the driving rod is provided with threads, the pressing block is in threaded connection with the driving rod, and the shell and the positioning block are respectively in rotary connection with two ends of the threads; the gap between the shell and the positioning block is a mounting groove, the side wall of the compression block can extend out of or retract into the mounting groove, and the box-type oil seal is in clearance fit with the mounting groove; and one end of the driving rod extending out of the shell is provided with a connecting square hole.

2. The cartridge type oil seal installation device according to claim 1, wherein a positioning boss is provided at the center of the positioning block, and the positioning boss is fitted with a concave hole in the middle of the end of the crankshaft.

3. The cartridge type oil seal installation device according to claim 2, wherein a plurality of positioning rods are vertically arranged on the positioning block, and the arrangement of the positioning rods is consistent with that of the positioning holes on the end face of the crankshaft.

4. The cartridge oil seal mounting arrangement according to claim 3, wherein said positioning rod extends through and is slidably connected to said compression block.

5. The cartridge oil seal mounting arrangement of claim 4, wherein the positioning rod extends through the housing and is slidably connected to both the housing and the positioning block.

6. The cartridge oil seal mounting device according to claim 4, wherein said housing is provided at its outer periphery with a clamping means for fixing said housing to a position to be mounted.

7. The cartridge oil seal mounting device according to claim 6, wherein the clamping device comprises a tightening barrel and at least three clamping jaws, the tightening barrel is sleeved outside the housing, and the tightening barrel is in threaded connection with the driving rod; the clamping jaws are hinged to the end edge of the housing, and the take-up reel can squeeze the clamping jaws by moving.

8. The cartridge oil seal mounting device according to claim 7, wherein said housing is provided at an outer periphery thereof with a jaw groove having a depth equal to the thickness of the jaw.