CN112555269B - Transmission shaft with dustproof oil seal structure - Google Patents
Transmission shaft with dustproof oil seal structure Download PDFInfo
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- CN112555269B CN112555269B CN202011441869.1A CN202011441869A CN112555269B CN 112555269 B CN112555269 B CN 112555269B CN 202011441869 A CN202011441869 A CN 202011441869A CN 112555269 B CN112555269 B CN 112555269B
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- movable block
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- shaped block
- movable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/02—Shafts; Axles
- F16C3/023—Shafts; Axles made of several parts, e.g. by welding
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/16—Sealings between relatively-moving surfaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Transmission Devices (AREA)
- Sealing Devices (AREA)
Abstract
The invention relates to a transmission shaft with a dustproof oil seal structure, which comprises a center shaft and a main shaft, wherein the main shaft is respectively arranged at two sides of the center shaft and has an outer diameter smaller than that of the center shaft, the center shaft comprises a transmission mechanism, a driving mechanism and a connecting part, a first arc-shaped block and a second arc-shaped block are arranged at the upper end and the lower end of the connecting part in a sliding way, a first movable block and a second movable block are arranged at the left end and the right end of the connecting part, the driving mechanism is connected with the first arc-shaped block and the second arc-shaped block, the transmission mechanism is connected with the first movable block and the second movable block, the first arc-shaped block, the second arc-shaped block, the first movable block and the second movable block are spliced into the center shaft when approaching to each other, oil storage tanks can be communicated with each other when approaching to each other, and oil seals are sleeved on the oil storage tanks. The transmission shaft of the technical scheme has a specific installation part aiming at the oil seal, so that the good sealing property of the oil seal can be ensured under the condition of long-term operation, and the quick installation of the oil seal can be realized.
Description
Technical Field
The invention relates to the technical field of automobile parts, in particular to a transmission shaft with a dustproof oil seal structure.
Background
Oil seals are a common term for seals, simply the seal of lubricating oil. The oil seal is a mechanical element for sealing grease, and separates a part needing lubrication in a transmission part from a force-applying part, so that lubricating oil is prevented from leaking. The sealing elements for static sealing and dynamic sealing are called oil seals.
The oil blanket generally need with output shaft or/and input shaft interference fit, when the installation oil blanket, need utilize instruments such as hammers to strike oil blanket to mounted position, because can't guarantee that the instrument evenly strikes each part of oil blanket, but its each part homoenergetic that guarantees the oil blanket is located the mounted position, leads to the installation accuracy relatively poor, can't protect the leakproofness of oil blanket, simultaneously, the local of oil blanket easily because of receiving too big striking power modification damage in the installation.
For the oil seal installed on the transmission shaft, the transmission shaft is a rotating body with high rotating speed and few supports, so that the oil seal in interference fit with the transmission shaft is easily abraded, and after the general transmission shaft is used for a long time, a gap is formed between the oil seal and the transmission shaft due to the fact that the surface of the general transmission shaft is not provided with specific positions for installing the oil seal, and the sealing performance of the oil seal is greatly reduced.
Disclosure of Invention
In view of the above circumstances, and in order to overcome the defects of the prior art, an object of the present invention is to provide a transmission shaft having a specific mounting portion for an oil seal, so as to ensure good sealing performance of the oil seal even in a long-term operation, and to enable quick mounting of the oil seal.
In order to achieve the purpose, the technical solution of the invention is as follows:
a transmission shaft with a dustproof oil seal structure comprises a center shaft, a main shaft which is respectively arranged at two sides of the center shaft and has an outer diameter smaller than that of the center shaft, the center shaft comprises a transmission mechanism, a driving mechanism for driving the transmission mechanism, a connecting part which is integrally formed with the main shafts at two sides, a first arc-shaped block and a second arc-shaped block which are slidably arranged between the main shafts and symmetrically arranged at the upper end and the lower end of the connecting part, a first movable block and a second movable block which are arranged at the left end and the right end of the connecting part, a driving cavity is arranged in the connecting part, the driving mechanism is arranged in the driving cavity and is respectively connected with the first arc-shaped block and the second arc-shaped block, the transmission mechanism is arranged at two sides of the connecting part and is connected with the first movable block and the second movable block, one ends of the first arc-shaped block and the second arc-shaped block, which are opposite to the connecting part, are respectively provided with a containing cavity for containing the connecting part, and the main shaft is provided with slots corresponding to the first movable block and the second movable block, the driving mechanism can drive the first arc-shaped block and the second arc-shaped block to move between a butt joint position and a separation butt joint position with the connecting portion, and simultaneously drive the transmission mechanism to enable the first movable block and the second movable block to move towards the slot direction, the first arc-shaped block, the second arc-shaped block, an oil storage tank is formed on the side wall of the first movable block and the side wall of the second movable block, an oil storage cavity and an oil through hole communicated with the oil storage cavity are formed in the oil storage tank, the oil through hole is provided with a first hole section and a second hole section which are perpendicular to each other and communicated with each other, the ends of the first hole section and the second hole section which deviate from each other are communicated with the side wall of the oil storage tank and the oil storage cavity respectively, when the first arc-shaped block, the second arc-shaped block, the first movable block and the second movable block are close to each other, the oil storage tanks can be communicated with each other when the first movable block and the second movable block are close to each other, and an oil seal is sleeved on the oil storage tank.
Preferably, the driving mechanism comprises a driving gear vertical to the first arc-shaped block and the second arc-shaped block, a driving rack which is arranged on two side walls of the driving cavity and meshed with the driving gear, a connecting rod fixedly connected with the driving rack, and a bearing frame which is arranged at the bottom of the driving cavity at one end of the connecting rod, which is far away from the driving rack, wherein the side wall of the driving cavity is provided with a through groove.
Preferably, the first arc-shaped block and the second arc-shaped block are provided with sinking grooves, fixing strips are arranged in the sinking grooves, and the fixing strips are connected with the driving gear.
Preferably, one end of the bearing frame, which is close to the connecting rod, is provided with a limiting groove communicated with the upper end face and the lower end face of the bearing frame, the limiting groove is circumferentially provided with a movable groove, the movable groove is semicircular, the arc section of the movable groove faces the connecting rod, a rotating shaft is installed in the limiting groove, a swing rod is fixed on the rotating shaft, one end of the swing rod is inserted into the straight section of the movable groove, and one end of the connecting rod, which deviates from the driving rack, is fixed with the rotating shaft.
Preferably, all can rotate on first arc piece and the second arc piece and be connected with the depression bar, and the both ends of depression bar point to first movable block and second movable block respectively, are equipped with the shifting block on first movable block, the second movable block, and the one end of shifting the block is passed first movable block, second movable block and is connected with the depression bar.
Preferably, the transmission mechanism comprises a telescopic rod, a spring and a guide plate, wherein the two ends of the telescopic rod are respectively fixed with the slot, the first movable block and the second movable block, the spring is sleeved on the telescopic rod, the guide plate is movably arranged at the bottom ends of the first movable block and the second movable block respectively, a sliding groove is formed in the guide plate, and the telescopic rod penetrates through the sliding groove to be fixed with the first arc-shaped block and the second arc-shaped block.
Preferably, one end of the guide plate, which is close to the connecting portion, is an arc end, when the first arc-shaped block, the second arc-shaped block, the first movable block and the second movable block are close to each other, the pressing rods at the lower ends of the first arc-shaped block and the second arc-shaped block are respectively abutted against two sides of the arc end of the guide plate, and a step for receiving the guide plate is formed on the connecting portion.
Preferably, a torsion spring is fixed on the first movable block on one side of the guide plate, a baffle is fixed on any force arm of the torsion spring, and the baffle is fixed with the guide plate simultaneously.
Preferably, the telescopic rod is provided with an opening for receiving the bearing frame.
Preferably, the clamping plate is formed on the first arc-shaped block and the second arc-shaped block, the clamping groove capable of being clamped with the clamping plate is formed in the first movable block and the second movable block, and the corresponding screw holes are formed in the clamping plate and the clamping groove.
Compared with the prior art, the invention has the advantages that:
the transmission shaft includes axis and the main shaft of branch locating the axis both sides, centraxonial external diameter is greater than the external diameter of main shaft, the event makes the oil blanket when the installation, can be quick move to axis department along the main shaft, through actuating mechanism with first movable block and second movable block to the slot direction that corresponds respectively, and make first arc piece and second arc piece remove until reaching the butt joint position in opposite directions, the shape of piecing together by first arc piece and second arc piece is similar oval this moment, the length of its major axis its first arc piece and the length of the bottom side of second arc piece, the quilt cover that the event oil blanket can be relaxed is established to first arc piece and second arc piece on, later make first arc piece, second arc piece, first movable block and second movable block resume the normal position through following setting, even axis reconversion, accomplish the installation of oil blanket.
The oil storage tank on first arc piece, second arc piece, first movable block and the second movable block can communicate each other, be equipped with the oil through hole on the oil storage tank, the oil blanket cover is located on the oil storage tank, the oil through hole of shutoff after the oil blanket installation finishes, because it and transmission shaft interference fit, the high-speed rotation of transmission shaft can arouse the wearing and tearing of oil blanket, along with the increase of oil blanket degree of wear, the oil through hole communicates with the oil level gradually, near transmission shaft forms the low pressure when the transmission shaft rotates at a high speed, fluid can be from the first hole section of oil through hole, the second hole section gets into the oil storage intracavity, thereby prevent to cause fluid to leak because of the oil blanket wearing and tearing, the oil storage tank can prevent outside dust entering simultaneously, so that the user collects and recycles the fluid in the oil storage chamber when repairing or changing the oil blanket.
Drawings
FIG. 1 is a schematic overall side view of a bottom bracket of a propeller shaft of the present invention with a first movable block and a second movable block removed;
FIG. 2 is a schematic structural view of the medial axis split joint of the present invention;
FIG. 3 is a schematic structural view of the bottom bracket of the present invention in an un-assembled state;
FIG. 4 is a schematic side sectional view of the present invention;
FIG. 5 is a schematic longitudinal sectional view of the bottom bracket of the present invention;
FIG. 6 is an enlarged view of part A of the present invention;
FIG. 7 is an enlarged view of the portion B of the present invention;
FIG. 8 is an enlarged view of the section C of the present invention;
fig. 9 is an enlarged view of the D-section of the present invention.
As shown in the figure:
1, a middle shaft; 101a connecting part; 101a drive chamber; 101b through grooves; 102 a first arcuate segment; 103 a second arc-shaped block; 104 a first movable block; 105 a second movable block; 106 an accommodating cavity; 107 oil storage tanks; 108 an oil reservoir; 109 oil through holes; 109a first bore section; 109b a second bore section; 2, a main shaft; a slot 201; 3, oil sealing; 4 driving the gear; 5 driving the rack; 6, connecting rods; 7 a loading frame; 701 limiting groove; 702 an active slot; 8, fixing strips; 9a rotating shaft; 10 oscillating bar; 11, a pressure lever; 12, telescoping a rod; 121 is opened; 13 a spring; 14 a guide plate; 141 chute; 15 torsion spring; 16 baffle plates; 17, a clamping plate; 18 card slots; 19 a shifting block.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples.
In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are usually arranged in when used, and are used for the convenience of description only, and do not indicate or imply that the orientations are required to have specific orientations and specific orientations, configurations and operations, and thus, the present invention is not to be construed as being limited.
It should be mentioned that this technical scheme can make oil blanket 3 install fast and solve the problem that the fluid that leads to because of the transmission shaft oil blanket 3 wearing and tearing in the high-speed rotation process leaks.
Example 1:
as shown in fig. 1 to 5, a transmission shaft with a dustproof oil seal 3 structure comprises a central shaft 1, a main shaft 2 which is respectively arranged at two sides of the central shaft 1 and has an outer diameter smaller than that of the central shaft 1, the central shaft 1 comprises a transmission mechanism, a driving mechanism for driving the transmission mechanism, a connecting part 101 which is integrally formed with the main shafts 2 at two sides, a first arc-shaped block 102 and a second arc-shaped block 103 which are slidably arranged between the main shafts 2 and are symmetrically arranged at the upper end and the lower end of the connecting part 101, a first movable block 104 and a second movable block 105 which are arranged at the left end and the right end of the connecting part 101, a driving cavity 101a is arranged in the connecting part 101, the driving mechanism is arranged in the driving cavity 101a and is respectively connected with the first arc-shaped block 102 and the second arc-shaped block 103, the transmission mechanism is arranged at two sides of the connecting part 101 and is connected with the first movable block 104 and the second movable block 105, one end of the first arc-shaped block 102 and one end of the second arc-shaped block 103 opposite to the connecting part 101 are both provided with a containing cavity 106 for containing the connecting part 101, it can be understood that the first arc-shaped block 102 and the second arc-shaped block 103 can move in opposite directions until the receiving grooves on the first arc-shaped block 102 and the second arc-shaped block 103 completely receive the connecting portion 101, at this time, the first arc-shaped block 102 and the second arc-shaped block 103 are in contact, the main shaft 2 is provided with the slot 201 corresponding to the first movable block 104 and the second movable block 105, the driving mechanism can drive the first arc-shaped block 102 and the second arc-shaped block 103 to move between a butt joint position and a separation position with the connecting portion 101, when the first arc-shaped block 102 and the second arc-shaped block 103 move in opposite directions, the first movable block 104 and the second movable block 105 move towards the respective corresponding slots 201, so that the first arc-shaped block 102 and the second arc-shaped block 103 can reach the butt joint position, as can be understood from the above description, the bottom sides of the first arc-shaped block 102 and the second arc-shaped block 103 do not correspond to the diameter of the central axis 1, and obviously the bottom sides are smaller than the diameter of the central axis 1, in the process, the driving mechanism drives the transmission mechanism to move the first movable block 104 and the second movable block 105 towards the slot 201, the side walls of the first arc-shaped block 102, the second arc-shaped block 103, the first movable block 104 and the second movable block 105 are respectively provided with an oil storage groove 107, the oil storage groove 107 is internally provided with an oil storage cavity 108 and an oil through hole 109 communicated with the oil storage cavity 108, the oil through hole 109 is provided with a first hole section 109a and a second hole section 109b which are perpendicular to each other and communicated with each other, the ends of the first hole section 109a and the second hole section 109b, which are deviated from each other, are respectively communicated with the side wall of the oil storage groove 107 and the oil storage cavity 108, it can be understood that external oil can sequentially flow through the first hole section 109a and the second hole section 109b to the oil storage cavity 108, when the first arc-shaped block 102, the second arc-shaped block 103, the first movable block 104 and the second movable block 105 approach each other, an axis 1 is spliced, and when the first arc-shaped block 102, the second arc-shaped block 103, the first movable block 104 and the second movable block 105 approach each other, The oil storage tank 107 on the second arc-shaped block 103, the first movable block 104 and the second movable block 105 can be communicated with each other, the oil seal 3 is sleeved on the oil storage tank 107, the oil through hole 109 can be blocked after the oil seal 3 is installed, due to interference fit with a transmission shaft, the high-speed rotation of the transmission shaft can cause abrasion of the oil seal 3, along with the increase of the abrasion degree of the oil seal 3, the oil through hole 109 is gradually communicated with the oil level, low pressure is formed near the transmission shaft when the transmission shaft rotates at a high speed, oil can enter the oil storage cavity 108 from the first hole section 109a of the oil through hole 109 and the second hole section 109b, so that the oil is prevented from leaking due to abrasion of the oil seal 3, meanwhile, the oil storage tank 107 can prevent external dust from entering, and the oil in the oil storage cavity 108 can be collected and reused when a user repairs or changes the oil seal 3.
It should be mentioned that the inner diameter of the oil seal 3 needs to be matched with the outer diameter of the central shaft 1, that is, the oil seal 3 only needs to be in interference fit with the central shaft 1, because the outer diameter of the central shaft 1 is larger than the outer diameter of the main shaft 2, when the oil seal 3 is installed, the oil seal can be rapidly moved to the central shaft 1 along the main shaft 2, the first movable block 104 and the second movable block 105 are moved to the direction of the corresponding slot 201 by the driving mechanism, and the first arc-shaped block 102 and the second arc-shaped block 103 are moved towards each other until reaching the butt joint position, at this time, the shape formed by splicing the first arc-shaped block 102 and the second arc-shaped block 103 is similar to an ellipse, the length of the long shaft is the length of the bottom sides of the first arc-shaped block 102 and the second arc-shaped block 103, so that the oil seal 3 can be easily sleeved on the first arc-shaped block 102 and the second arc-shaped block 103, the first movable block 104 and the second movable block 105 can be restored to the original position by the following arrangement, even if the middle shaft 1 is restored to the original state, the installation of the oil seal 3 is completed.
As shown in fig. 4 and 6 to 8, the driving mechanism includes a driving gear 4 perpendicular to the first arc block 102 and the second arc block 103, a driving rack 5 mounted on two side walls of the driving cavity 101a and engaged with the driving gear 4, a connecting rod 6 fixedly connected to the driving rack 5, a bearing frame 7 mounted at the bottom of the driving cavity 101a at one end of the connecting rod 6 away from the driving rack 5, a through slot 101b formed on the side wall of the driving cavity 101a, the driving gear 4 is driven to move synchronously when the first arc block 102 and the second arc block 103 move, the driving gear 4 rotates during the moving process, the driving gear 4 drives the driving rack 5 to move simultaneously, the driving rack 5 drives the connecting rod 6 connected thereto and the bearing frame 7 connected to the connecting rod 6 to move, and the bearing frame 7 can move inside and outside the through slot 101b due to the arrangement of the through slot 101 b.
As shown in fig. 5 and 8, further, a sinking groove is formed in the first arc-shaped block 102 and the second arc-shaped block 103, a fixing strip 8 is arranged in the sinking groove, the fixing strip 8 is connected with the driving gear 4, the driving gear 4 can rotate around a connection point with the fixing strip 8, and the driving gear rack 5 is arranged to enable the driving gear 4 to rotate when the first arc-shaped block 102 and the second arc-shaped block 103 move.
As shown in fig. 6, further, one end of the bearing frame 7 close to the connecting rod 6 is provided with a limiting groove 701 which is communicated with the upper end surface and the lower end surface of the bearing frame, the circumference of the limiting groove 701 is provided with a movable groove 702, the movable groove 702 is semicircular, an arc section of the movable groove 702 faces the connecting rod 6, a rotating shaft 9 is installed in the limiting groove 701, a swing rod 10 is fixed on the rotating shaft 9, one end of the swing rod 10 is inserted into a straight section of the movable groove 702, one end of the connecting rod 6, which is far away from the driving rack 5, is fixed with the rotating shaft 9, when the arrangement is in operation, the connecting rod 6 rotates along with the driving rack 5, the rotating shaft 9 in the limiting groove 701 is driven to rotate when the rotating shaft 9 rotates, and the bearing frame 7 integrating the movable groove 702 is jacked up and retracted when the rotating shaft 9 rotates.
As shown in fig. 5, further, the first arc-shaped block 102 and the second arc-shaped block 103 are both rotatably connected with a pressure lever 11, two ends of the pressure lever 11 respectively point to the first movable block 104 and the second movable block 105, the first movable block 104 and the second movable block 105 are provided with a shifting block 19, one end of the shifting block 19 passes through the first movable block 104 and the second movable block 105 to be connected with the pressure lever 11, and when the operation is performed, the shifting block 19 can be shifted to drive the pressure lever 11 to rotate.
As shown in fig. 7 and 9, further, the transmission mechanism includes an expansion link 12 having two ends respectively fixed to the slot 201, the first movable block 104, and the second movable block 105, a spring 13 sleeved on the expansion link 12, and a guide plate 14 movably mounted at the bottom ends of the first movable block 104 and the second movable block 105, wherein a sliding slot 141 is formed on the guide plate 14, and the expansion link 12 passes through the sliding slot 141 and is fixed to the first arc-shaped block 102 and the second arc-shaped block 103.
As shown in fig. 5, further, one end of the guide plate 14 close to the connecting portion 101 is an arc end, when the first arc block 102, the second arc block 103, the first movable block 104 and the second movable block 105 are close to each other, the pressing rods 11 at the lower ends of the first arc block 102 and the second arc block 103 are respectively abutted against two sides of the arc end of the guide plate 14, and a step for receiving the guide plate 14 is formed on the connecting portion 101.
Through above setting, under initial condition, deflector 14 butt on the step of connecting portion 101, when depression bar 11 on first arc piece 102 and the second arc piece 103 extrudees deflector 14, when first arc piece 102 and the second arc piece 103 are close to each other promptly, because the tip of deflector 14 is the arc, so can extrude the outside of deflector 14, make deflector 14 break away from the butt joint position with the step, thereby drive and drive first movable block 104, second movable block 105 removes and submerges in slot 201 completely to slot 201, at this in-process, first movable block 104 and second movable block 105 extrude telescopic link 12 and spring 13.
As shown in fig. 9, further, an opening 121 for accommodating the bearing frame 7 is provided on the telescopic rod 12, and by this arrangement, in the process of moving the first movable block 104 and the second movable block 105 to the slot 201, because the first arc-shaped block 102 and the second arc-shaped block move in opposite directions, the bearing frame 7 extends out from the through slot 101b until being inserted into the opening 121 on the telescopic rod 12, so as to prevent the first movable block 104 and the second movable block 105 from moving continuously, and ensure that the first movable block 104 and the second movable block 105 can be quickly pulled out from the slot 201 afterwards.
Example 2:
as shown in fig. 7 and 9, in this embodiment, on the basis of the above embodiment 1, one of the optimized designs is made, a torsion spring 15 is fixed on the first movable block 104 on one side of the guide plate 14, a baffle 16 is fixed on any arm of the torsion spring 15, and the baffle 16 is fixed with the guide plate 14 at the same time, when the first movable block 104 and the second movable block 105 are disengaged from the slot 201, the torsion spring 15 returns to deform to drive the baffle 16, and the baffle 16 drives the guide plate 14 to move towards the step, so that the step can be abutted against the guide plate 14 again, and the first movable block 104 and the second movable block 105 are prevented from shifting.
Example 3:
as shown in fig. 2, this embodiment makes one of them optimal design on the basis of above-mentioned embodiment 1, first arc piece 102, be formed with cardboard 17 on the second arc piece 103, draw-in groove 18 that can with cardboard 17 block has been seted up on first movable block 104 and the second movable block 105, corresponding screw has been seted up on cardboard 17 and the draw-in groove 18, after the oil blanket 3 installation finishes, through the bolt with first arc piece 102, second arc piece 103, first movable block 104 and second movable block 105 reciprocal anchorage, thereby avoid taking place relative movement and influence the oil blanket effect of oil blanket 3.
The foregoing embodiments and description have been presented only to illustrate the principles and preferred embodiments of the invention, and various changes and modifications may be made therein without departing from the spirit and scope of the invention as hereinafter claimed.
Claims (10)
1. A transmission shaft with a dustproof oil seal structure is characterized by comprising a center shaft (1), a main shaft (2) which is arranged on two sides of the center shaft (1) respectively and has an outer diameter smaller than that of the center shaft (1), wherein the center shaft (1) comprises a transmission mechanism, a driving mechanism for driving the transmission mechanism, connecting parts (101) which are integrally formed with the main shaft (2) on two sides, first arc-shaped blocks (102) and second arc-shaped blocks (103) which are slidably arranged between the main shafts (2) and symmetrically arranged at the upper end and the lower end of the connecting parts (101), first movable blocks (104) and second movable blocks (105) which are arranged at the left end and the right end of the connecting parts (101), driving cavities (101a) are formed in the connecting parts (101), the driving mechanism is arranged in the driving cavities (101a) and is respectively connected with the first arc-shaped blocks (102) and the second arc-shaped blocks (103), the transmission mechanism is installed on two sides of the connecting portion (101) and connected with the first movable block (104) and the second movable block (105), the first arc-shaped block (102) and the second arc-shaped block (103) are opposite to one end of the connecting portion (101) and are provided with accommodating cavities (106) used for accommodating the connecting portion (101), the spindle (2) is provided with slots (201) corresponding to the first movable block (104) and the second movable block (105), the driving mechanism can drive the first arc-shaped block (102) and the second arc-shaped block (103) to move between a butt joint position and a separation joint position of the connecting portion (101) and drive the transmission mechanism to enable the first movable block (104) and the second movable block (105) to move towards the slots (201), and the first arc-shaped block (102), the second arc-shaped block (103), the first movable block (104), the second movable block (105) and the second movable block (105) move towards the slots (201), and the transmission mechanism is connected with the spindle (2), Oil storage grooves (107) are formed on the side walls of the second arc-shaped block (103), the first movable block (104) and the second movable block (105), an oil storage cavity (108) and an oil through hole (109) communicated with the oil storage cavity (108) are formed in the oil storage tank (107), the oil through hole (109) is provided with a first hole section (109a) and a second hole section (109b) which are perpendicular to each other and communicated with each other, the ends of the first bore section (109a) and the second bore section (109b) which face away from each other are respectively connected to the side wall of the oil reservoir (107) and the oil reservoir chamber (108), when the first arc-shaped block (102), the second arc-shaped block (103), the first movable block (104) and the second movable block (105) are close to each other, the middle shaft (1) is spliced, and when being close to each other the oil storage tank (107) can communicate each other, the oil storage tank (107) is sleeved with an oil seal (3).
2. The transmission shaft with the dustproof oil seal structure according to claim 1, wherein the driving mechanism comprises a driving gear (4) perpendicular to the first arc-shaped block (102) and the second arc-shaped block (103), a driving rack (5) mounted on two side walls of the driving cavity (101a) and meshed with the driving gear (4), a connecting rod (6) fixedly connected with the driving rack (5), and a bearing frame (7) mounted at the bottom of the driving cavity (101a) at one end of the connecting rod (6) departing from the driving rack (5), wherein a through groove (101b) is formed in the side wall of the driving cavity (101 a).
3. The transmission shaft with the dustproof oil seal structure according to claim 2, wherein the first arc-shaped block (102) and the second arc-shaped block (103) are provided with a sinking groove, a fixing strip (8) is arranged in the sinking groove, and the fixing strip (8) is connected with the driving gear (4).
4. The transmission shaft with the dustproof oil seal structure according to claim 3, wherein a limiting groove (701) penetrating through the upper end surface and the lower end surface of the connecting rod is formed in one end, close to the connecting rod (6), of the bearing frame (7), a movable groove (702) is formed in the circumferential direction of the limiting groove (701), the movable groove (702) is semicircular, the arc section of the movable groove (702) faces the connecting rod (6), a rotating shaft (9) is installed in the limiting groove (701), a swing rod (10) is fixed on the rotating shaft (9), one end of the swing rod (10) is inserted into the straight section of the movable groove (702), and one end, away from the driving rack (5), of the connecting rod (6) is fixed with the rotating shaft (9).
5. The transmission shaft with the dustproof oil seal structure according to claim 2, wherein the first arc-shaped block (102) and the second arc-shaped block (103) are rotatably connected with a pressure lever (11), two ends of the pressure lever (11) respectively point to the first movable block (104) and the second movable block (105), the first movable block (104) and the second movable block (105) are provided with shifting blocks (19), and one end of each shifting block (19) penetrates through the first movable block (104) and the second movable block (105) and is connected with the pressure lever (11).
6. The transmission shaft with the dustproof oil seal structure according to claim 5, wherein the transmission mechanism comprises a telescopic rod (12) with two ends respectively fixed with a slot (201), a first movable block (104) and a second movable block (105), a spring (13) sleeved on the telescopic rod (12), and guide plates (14) respectively movably mounted at the bottom ends of the first movable block (104) and the second movable block (105), wherein the guide plates (14) are provided with sliding grooves (141), and the telescopic rod (12) penetrates through the sliding grooves (141) to be fixed with the first arc-shaped block (102) and the second arc-shaped block (103).
7. The transmission shaft with the dustproof oil seal structure according to claim 6, wherein one end of the guide plate (14) close to the connecting portion (101) is an arc end, when the first arc block (102), the second arc block (103), the first movable block (104) and the second movable block (105) are close to each other, the pressing rods (11) at the lower ends of the first arc block (102) and the second arc block (103) are respectively abutted against two sides of the arc end of the guide plate (14), and a step for receiving the guide plate (14) is formed on the connecting portion (101).
8. The transmission shaft with the dustproof oil seal structure according to claim 7, wherein a torsion spring (15) is fixed on the first movable block (104) on one side of the guide plate (14), a baffle (16) is fixed on any arm of the torsion spring (15), and the baffle (16) is fixed with the guide plate (14) at the same time.
9. The transmission shaft with a dustproof oil seal structure according to claim 6, wherein the telescopic rod (12) is provided with an opening (121) for receiving the bearing frame (7).
10. The transmission shaft with the dustproof oil seal structure according to claim 1, wherein clamping plates (17) are formed on the first arc-shaped block (102) and the second arc-shaped block (103), clamping grooves (18) capable of being clamped with the clamping plates (17) are formed on the first movable block (104) and the second movable block (105), and corresponding screw holes are formed on the clamping plates (17) and the clamping grooves (18).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011441869.1A CN112555269B (en) | 2020-12-08 | 2020-12-08 | Transmission shaft with dustproof oil seal structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011441869.1A CN112555269B (en) | 2020-12-08 | 2020-12-08 | Transmission shaft with dustproof oil seal structure |
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| CN112555269A CN112555269A (en) | 2021-03-26 |
| CN112555269B true CN112555269B (en) | 2022-04-29 |
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| KR20080053603A (en) * | 2006-12-11 | 2008-06-16 | 현대자동차주식회사 | An oil seal stopping a oil leak |
| CN107763220A (en) * | 2017-12-07 | 2018-03-06 | 马鞍山市华科实业有限公司 | A kind of high-speed oil seal structure |
| CN107905910A (en) * | 2017-12-26 | 2018-04-13 | 盐城市昇众鑫机械有限公司 | A kind of crankshaft of diesel engine Rear oil seal modular construction |
| CN208686968U (en) * | 2018-08-28 | 2019-04-02 | 童春国 | A kind of oil enveloping structure for bearing block |
| CN210661015U (en) * | 2019-07-18 | 2020-06-02 | 苏州苏万万向节有限公司 | Transmission shaft convenient to stretch out and draw back |
| CN212004251U (en) * | 2020-03-10 | 2020-11-24 | 济源创新石化配件有限公司 | Combined bearing oil seal structure for speed reducer |
-
2020
- 2020-12-08 CN CN202011441869.1A patent/CN112555269B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080053603A (en) * | 2006-12-11 | 2008-06-16 | 현대자동차주식회사 | An oil seal stopping a oil leak |
| CN107763220A (en) * | 2017-12-07 | 2018-03-06 | 马鞍山市华科实业有限公司 | A kind of high-speed oil seal structure |
| CN107905910A (en) * | 2017-12-26 | 2018-04-13 | 盐城市昇众鑫机械有限公司 | A kind of crankshaft of diesel engine Rear oil seal modular construction |
| CN208686968U (en) * | 2018-08-28 | 2019-04-02 | 童春国 | A kind of oil enveloping structure for bearing block |
| CN210661015U (en) * | 2019-07-18 | 2020-06-02 | 苏州苏万万向节有限公司 | Transmission shaft convenient to stretch out and draw back |
| CN212004251U (en) * | 2020-03-10 | 2020-11-24 | 济源创新石化配件有限公司 | Combined bearing oil seal structure for speed reducer |
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| CN112555269A (en) | 2021-03-26 |
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