CN211474779U

CN211474779U - Steering gear worm wheel

Info

Publication number: CN211474779U
Application number: CN201921526127.1U
Authority: CN
Inventors: 崔建业
Original assignee: NINGBO TIANYE PRECISION CASTING CO Ltd
Current assignee: NINGBO TIANYE PRECISION CASTING CO Ltd
Priority date: 2019-09-12
Filing date: 2019-09-12
Publication date: 2020-09-11
Anticipated expiration: 2029-09-12

Abstract

The utility model relates to the technical field of automobile parts, in particular to a steering gear worm wheel, which comprises a casing, wherein a worm and a worm wheel are arranged in the casing, the worm is meshed with the worm wheel, an oil storage device containing lubricating oil is also arranged in the casing, and the outlet end of the oil storage device is arranged corresponding to the meshing part of the worm and the worm wheel; the worm is coaxially connected with a first gear, the first gear is meshed with a second gear, a closing mechanism is further arranged in the oil reservoir, and the closing mechanism is coaxially connected with the second gear; when the worm wheel rotates forwards, the closing mechanism is opened, and when the worm wheel rotates backwards, the closing mechanism is closed. The oil outlet of the lubricating oil clearance in the oil storage device is realized through the closing mechanism, and the opening and the closing of the closing mechanism are realized through the positive rotation and the reverse rotation of the worm wheel, so that the baffle blocks the oil outlet hollow ring and does not block the oil outlet hollow ring, and the purpose of oil outlet of the lubricating oil clearance is finally achieved.

Description

Steering gear worm wheel

Technical Field

The utility model relates to an automobile parts technical field specifically is a steering gear worm wheel.

Background

The automobile steering gear uses a worm as a driving part and a crank pin as a driven part. The worm has a trapezoidal thread, and a finger-shaped conical finger is supported by a bearing on a crank, which is formed integrally with the steering rocker shaft. When the steering wheel is turned, the worm and the conical finger pin embedded in the spiral groove of the worm rotate while doing circular arc motion around the steering rocker shaft, so that the crank and the steering vertical arm are driven to swing, and the steering wheel is deflected through the steering transmission mechanism.

The worm gear needs to be lubricated in the transmission process so as to reduce abrasion, but the common lubrication mode can only add lubricating oil regularly, so that the condition of untimely lubrication is easy to occur, and the problem of transmission of the worm gear is finally caused.

Therefore, a transmission worm wheel with a lubricating function is urgently needed to solve the technical problem.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a steering gear worm wheel, which can only add lubricant periodically in the prior art, thereby resulting in untimely lubrication and finally affecting the technical problem of worm gear transmission

In order to achieve the above purpose, the utility model adopts the technical scheme that: a steering gear worm wheel comprises a shell, wherein a worm and a worm wheel are installed in the shell, the worm is meshed with the worm wheel, an oil reservoir containing lubricating oil is further arranged in the shell, and the outlet end of the oil reservoir is arranged corresponding to the meshed part of the worm and the worm wheel; the worm is coaxially connected with a first gear, the first gear is meshed with a second gear, a closing mechanism is further arranged in the oil reservoir, and the closing mechanism is coaxially connected with the second gear; when the worm wheel rotates forwards, the closing mechanism is opened, and when the worm wheel rotates backwards, the closing mechanism is closed.

Further optimize, the closing mechanism includes that carousel and carousel are the fixed disk of arranging from top to bottom, the carousel outer lane is equipped with the ring gear, the ring gear meshing has the third gear, the third gear with second gear coaxial coupling.

Further optimize, it has a plurality of dwangs to distribute along the circumference on the carousel edge, be equipped with the spout on the dwang, the carousel center is equipped with the hollow circle of producing oil, every the dwang with hollow circle fixed connection produces oil, be equipped with the pivot on the fixed disk, fixedly connected with is used for the switching in the pivot the baffle of the hollow circle of producing oil, the pivot sets up in the spout.

Further optimize, the quantity of dwang is 6, the quantity of baffle is 6, the one end that the spout was kept away from to the baffle is equipped with triangle-shaped most advanced, triangle-shaped most advanced interior angle is 60 degrees.

Further preferably, a spray nozzle is arranged at the outlet end of the oil reservoir, and the cross section of the spray nozzle is circular.

The principle of the utility model lies in: in the initial state, the oil outlet hollow ring is in an opening state, the baffle does not block the oil outlet hollow ring, the oil reservoir is opened, and lubricating oil in the oil reservoir passes through the oil outlet hollow ring and is sprayed to the meshing position of the worm wheel and the worm through the nozzle, so that the worm wheel and the worm are meshed conveniently.

When the worm wheel and the worm are in transmission, the worm wheel rotates forwards, the worm drives the first gear on the worm to rotate at the same time, the first gear drives the second gear meshed with the first gear to rotate, the second gear drives the third gear in the closing mechanism to rotate, because the gear ring is arranged on the outer ring of the turntable and is meshed with the third gear, the third gear drives the turntable to rotate while rotating, the turntable rotates to drive the rotating rod on the turntable to rotate, so that the chute on the rotating rod also rotates, the chute can drive the rotating shaft to slide in the chute when rotating, under the action of the sliding groove, the rotating shaft can also rotate at a certain angle to drive the baffle plate to rotate at a certain angle, so that the original state that the baffle plate does not block the oil-out hollow ring is changed into the original state that the baffle plate blocks the oil-out hollow ring, the oil flowing out of the lubricating oil in the oil reservoir is blocked by the baffle plate, so that the lubricating oil is suspended for a while.

When the worm wheel begins to rotate reversely, the baffle which originally blocks the oil outlet hollow ring is changed into the baffle which does not block the oil outlet hollow ring under the action of the sliding groove and the rotating shaft, so that lubricating oil in the oil storage device passes through the oil outlet hollow ring again and is sprayed to the meshing position of the worm wheel and the worm, and the worm wheel and the worm are convenient to mesh.

Utility model's advantage lies in: 1. set up lubricating oil through the oil reservoir, spray lubricating oil to worm wheel and worm mesh department mutually through circular nozzle, be convenient for better transmission between worm wheel and the worm. 2. The oil outlet of the lubricating oil clearance in the oil storage device is realized through the closing mechanism, and the opening and the closing of the closing mechanism are realized through the positive rotation and the reverse rotation of the worm wheel, so that the baffle blocks the oil outlet hollow ring and does not block the oil outlet hollow ring, and the purpose of oil outlet of the lubricating oil clearance is finally achieved.

Drawings

Fig. 1 is a schematic structural diagram of a steering gear worm wheel of the present invention.

Fig. 2 is a schematic view of the opening of the closing mechanism of the present invention.

Fig. 3 is a schematic view of the closing mechanism of the present invention.

Reference numerals: the device comprises a machine shell 1, a worm 2, a worm wheel 3, an oil reservoir 4, a first gear 5, a second gear 6, a closing mechanism 7, a fixed disc 71, a rotary disc 72, a gear ring 73, a third gear 74, a rotating rod 8, a sliding groove 81, an oil outlet hollow ring 9, a rotating shaft 10, a baffle plate 11, a triangular tip 12 and a spray head 13.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Embodiment 1 of the present invention is shown in fig. 1 to 3: a steering gear worm wheel 3 comprises a machine shell 1, wherein a worm 2 and a worm wheel 3 are installed in the machine shell 1, the worm 2 is meshed with the worm wheel 3, an oil storage device 4 containing lubricating oil is further arranged in the machine shell 1, and the outlet end of the oil storage device 4 is arranged corresponding to the meshing position of the worm 2 and the worm wheel 3; the worm 2 is coaxially connected with a first gear 5, the first gear 5 is meshed with a second gear 6, a closing mechanism 7 is further arranged in the oil reservoir 4, and the closing mechanism 7 is coaxially connected with the second gear 6; when the worm wheel 3 rotates forwards, the closing mechanism 7 is opened, and when the worm wheel 3 rotates backwards, the closing mechanism 7 is closed.

The closing mechanism 7 comprises a fixed disc 71 with a rotary disc 72 and the rotary disc 72 arranged up and down, a gear ring 73 is arranged on the outer ring of the rotary disc 72, a third gear 74 is meshed with the gear ring 73, and the third gear 74 is coaxially connected with the second gear 6.

It has a plurality of dwang 8 to distribute along the circumference on the carousel 72 edge, be equipped with spout 81 on the dwang 8, carousel 72 center is equipped with the hollow circle 9 that produces oil, every dwang 8 with the hollow circle 9 fixed connection that produces oil, be equipped with pivot 10 on the fixed disk 71, fixedly connected with is used for the switching in the pivot 10 the baffle 11 of the hollow circle 9 that produces oil, pivot 10 sets up in the spout 81.

The quantity of dwang 8 is 6, the quantity of baffle 11 is 6, the one end that spout 81 was kept away from to baffle 11 is equipped with triangle-shaped most advanced 12, the interior angle of triangle-shaped most advanced 12 is 60 degrees.

And a spray head 13 is arranged at the outlet end of the oil reservoir 4, and the cross section of the spray head 13 is circular.

Because the worm wheel 3 and the worm 2 are connected with the steering wheel through a certain connection relation, the number of full wheel turns of the steering wheel towards left and right is one and a half turns, in order to ensure that the steering wheel rotates within one and a half turns, the rotating disc 72 can rotate for 1/6 turn, and because the transmission ratios between the steering wheel and the worm wheel 3 and the worm 2 are different for each vehicle, the transmission ratios among the first gear 5, the second gear 6, the third gear 74 and the rotating disc 72 need to be adjusted correspondingly according to actual requirements.

The utility model discloses a concrete operating procedure as follows: in the initial state, the oil outlet hollow ring 9 is in an opening state, the baffle plate 11 does not block the oil outlet hollow ring 9, the oil storage device 4 is opened, and lubricating oil in the oil storage device 4 is sprayed to the meshing position of the worm wheel 3 and the worm 2 through the oil outlet hollow ring 9 and the nozzle, so that the worm wheel 3 and the worm 2 are meshed conveniently.

When the worm wheel 3 and the worm 2 are driven, the worm wheel 3 rotates forwards, the worm 2 drives the first gear 5 on the worm 2 to rotate while driving, the first gear 5 drives the second gear 6 meshed with the first gear 5 to rotate, the second gear 6 drives the third gear 74 in the closing mechanism 7 to rotate while driving, because the outer ring of the turntable 72 is provided with the gear ring 73, the gear ring 73 is meshed with the third gear 74, the third gear 74 drives the turntable 72 to rotate while rotating, the turntable 72 drives the rotating rod 8 on the turntable 72 to rotate, so that the sliding chute 81 on the rotating rod 8 also rotates, the rotating chute 81 can drive the rotating shaft 10 to slide in the sliding chute 81 while rotating, and under the action of the sliding chute 81, the rotating shaft 10 can also rotate at a certain angle to drive the baffle 11 to rotate at a certain angle, so that the original state that the baffle 11 does not have the hollow oil outlet ring 9 is changed into the hollow oil outlet ring 9, the oil flowing out of the lubricating oil in the oil reservoir 4 is blocked by the baffle plate 11, and the lubricating oil is temporarily stopped.

Until the worm wheel 3 starts to rotate reversely, the baffle 11 which originally blocks the hollow oil-out ring 9 changes into a baffle which does not block the hollow oil-out ring 9 under the action of the sliding groove 81 and the rotating shaft 10, so that the lubricating oil in the oil storage device 4 passes through the hollow oil-out ring 9 again and is finally sprayed to the meshing part of the worm wheel 3 and the worm 2, and the worm wheel 3 and the worm 2 are meshed conveniently.

The utility model discloses a closing mechanism 7 realizes the play oil of the lubricating oil clearance nature in the oil storage ware 4, and realizes opening and closing of closing mechanism 7 through the corotation of worm wheel 3 and reversal to make baffle 11 block the hollow circle 9 of producing oil and not block the hollow circle 9 of producing oil, finally reach the purpose that lubricating oil clearance nature is produced oil, be convenient for better transmission between worm wheel 3 and the worm 2.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a steering gear worm wheel, includes the casing, install worm and worm wheel in the casing, the worm with the worm wheel meshes mutually, its characterized in that: an oil reservoir containing lubricating oil is further arranged in the shell, and the outlet end of the oil reservoir is correspondingly arranged at the meshing position of the worm and the worm wheel; the worm is coaxially connected with a first gear, the first gear is meshed with a second gear, a closing mechanism is further arranged in the oil reservoir, and the closing mechanism is coaxially connected with the second gear; when the worm wheel rotates forwards, the closing mechanism is opened, and when the worm wheel rotates backwards, the closing mechanism is closed.

2. A diverter worm gear according to claim 1, wherein: the closing mechanism comprises a fixed disc which is vertically arranged between a rotary disc and the rotary disc, a gear ring is arranged on the outer ring of the rotary disc, a third gear is meshed with the gear ring, and the third gear is coaxially connected with the second gear.

3. A diverter worm gear according to claim 2, wherein: the rotary table is characterized in that a plurality of rotating rods are distributed on the edge of the rotary table along the circumference, a sliding groove is formed in the rotating rods, an oil outlet hollow ring is arranged at the center of the rotary table and is fixedly connected with the rotating shaft, the rotating shaft is arranged on the fixed plate and is used for opening and closing the baffle of the oil outlet hollow ring, and the rotating shaft is arranged in the sliding groove.

4. A diverter worm gear according to claim 3, wherein: the quantity of dwang is 6, the quantity of baffle is 6, the one end that the spout was kept away from to the baffle is equipped with triangle-shaped most advanced, triangle-shaped most advanced interior angle is 60 degrees.

5. A diverter worm gear according to claim 1, wherein: the outlet end of the oil reservoir is provided with a spray head, and the cross section of the spray head is circular.