CN217633502U

CN217633502U - Protection device for drive harrow bearing block oil blanket

Info

Publication number: CN217633502U
Application number: CN202221462746.0U
Authority: CN
Inventors: 刘松磊; 马海龙; 王强
Original assignee: Zhengzhou Longfeng Agricultural Equipment Manufacturing Co ltd
Current assignee: Zhengzhou Longfeng Agricultural Equipment Manufacturing Co ltd
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-10-21
Anticipated expiration: 2032-06-13

Abstract

The utility model discloses a protector of drive harrow bearing frame oil blanket has solved among the prior art that the winding thing easily enters into drive harrow bearing frame internal damage oil blanket scheduling problem. The utility model comprises a bearing seat and a rake tooth seat, wherein a spline shaft is connected in the bearing seat through a bearing, an oil seal is arranged between the spline shaft and the bearing seat and is positioned below the bearing, and the spline shaft extends downwards into the rake tooth seat and is fixedly connected with the rake tooth seat; the bearing seat is in plug-in sealing fit with the rake tooth seat. The utility model discloses rake teeth seat design is the dicyclo structure, and the bearing frame of packing into, twines such as iron wire, electric cotton rope during the operation are difficult to enter into inside the bearing frame to effectively protect the oil blanket, the utility model discloses can prevent external twine to get into the box, thereby protect the oil blanket, reduce the fault rate, avoid bringing the unnecessary loss, solved among the prior art problem that the oil blanket was damaged by external twine.

Description

Protection device for drive harrow bearing block oil blanket

Technical Field

The utility model relates to a drive harrow technical field especially indicates a protector of drive harrow bearing oil blanket.

Background

The driving harrow is a machine tool which drives a working part to carry out dry land soil crushing and soil preparation operation by utilizing a power output shaft of a tractor through a universal joint transmission shaft and a transmission system, and can be divided into a reciprocating type power harrow, a horizontal rotation power harrow, a vertical rotation power harrow and the like according to the motion mode of the working part.

During the operation of the existing driving rake, the twines such as iron wires and electric cords can easily enter the bearing seat, and once the twines enter the bearing seat, the oil seal can be damaged between farmlands, so that the transmission case has oil leakage and other faults. In addition, the existing driving harrow tooth seat has low strength, is easy to damage after long-time work, and causes the problem of low working efficiency due to fussy replacement work.

SUMMERY OF THE UTILITY MODEL

To not enough among the above-mentioned background art, the utility model provides a protector of drive harrow bearing frame oil blanket has solved among the prior art that the winding thing easily enters into drive harrow bearing frame internal damage oil blanket scheduling problem in the agricultural field.

The technical scheme of the utility model is realized like this: a protection device for driving a rake bearing block oil seal comprises a bearing block and a rake tooth base, wherein a spline shaft is connected in the bearing block through a bearing, an oil seal is arranged between the spline shaft and the bearing block and is positioned below the bearing, and the spline shaft extends downwards into the rake tooth base and is fixedly connected with the rake tooth base; the bearing seat is in plug-in sealing fit with the rake tooth seat.

The rake teeth seat comprises a cylindrical seat body, the upper part of the cylindrical seat body is provided with a double-ring structure arranged concentrically, the double-ring structure forms an annular clamping groove matched with the bearing seat, the side wall of the cylindrical seat body is provided with a mounting groove for mounting rake teeth, and the rake teeth are fixedly connected with the rake teeth seat.

The double-ring structure and the cylindrical seat body are integrally formed, an axial hole corresponding to the mounting groove is formed in the cylindrical seat body, and the rake teeth are connected with the cylindrical seat body through fastening bolts penetrating through the axial hole.

The middle part of the rake tooth seat is provided with a spline hole, and the spline hole is matched with the spline shaft.

One end of the spline shaft extending into the rake tooth seat is provided with an axial bolt, and the axial bolt is fixedly connected with the spline shaft and the rake tooth seat through a base plate. And one end of the spline hole facing the bearing seat is a conical opening.

The oil seal is sleeved on the spline shaft, and the lower end face of the oil seal is in surface-to-surface contact with the upper end face of the rake tooth seat.

The rake tooth holder is a ball-milling cast iron rake tooth holder.

The rake tooth seat of the utility model is designed into a double-ring structure and is arranged in the bearing seat, so that the twines such as iron wires, electric cords and the like are difficult to enter the bearing seat during operation, thereby effectively protecting the oil seal; compare in the outer hourglass of traditional mode oil blanket or the monocycle protection, the oil blanket just can be damaged in case get into inside the bearing frame to the winding between the farmland, leads to faults such as transmission case oil leak, the utility model discloses can prevent external winding and get into the box to the protection oil blanket reduces the fault rate, avoids bringing the unnecessary loss, has solved among the prior art problem that the oil blanket was damaged by external winding. In addition, the harrow toothholder adopts ball-milling cast iron harrow toothholder in this embodiment, compares in traditional mode carbon steel harrow toothholder and integral key shaft welding an organic whole, the utility model discloses have and change the convenience, change alone and practice thrift the cost, and the ball-milling cast iron harrow toothholder through isothermal quenching has absolute advantages such as intensity is high, the wearability is good, has avoided loaded down with trivial details manual operation when changing the harrow toothholder alone, has saved installation and takedown time, has greatly improved work efficiency, has solved among the prior art that the harrow toothholder is changed trouble, change with high costs, fragile, easy wearing and tearing scheduling problem.

Drawings

In order to illustrate the embodiments of the present invention more clearly, the drawings that are needed in the description of the embodiments will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic view of the whole shaft of the present invention.

Fig. 2 is a schematic diagram of the internal structure of the present invention.

Fig. 3 is a schematic view of the rake toothholder structure of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, embodiment 1 is a protection device for an oil seal of a driving rake bearing seat, which comprises a bearing seat 1 and a rake tooth seat 4, wherein the bearing seat is located at the upper part of the rake tooth seat. The bearing seat 1 is internally connected with a spline shaft 3 through a bearing 8, namely the spline shaft is rotationally arranged in the bearing seat 1 through the bearing 8. Be equipped with oil blanket 2 and oil blanket 2 between integral key shaft 3 and the bearing frame 1 and be located the below of bearing 8, the oil blanket is located the bearing frame and is used for protecting the bearing in the bearing frame, prevents firstly that flow such as bearing lubricant, secondly prevents debris such as dust from getting into the bearing. The spline shaft 3 extends downwards into the rake tooth seat 4 and is fixedly connected with the rake tooth seat 4; when the harrowing machine is used, the spline is used as a power shaft to drive the harrow teeth seat to rotate, so that harrowing operation is realized. Bearing

frame

1 and 4 sealed cooperations of pegging graft of rake teeth seat in this embodiment make the chamber at oil blanket place form the chamber of relative seal, prevent effectively that the winding from getting into the inside damage oil blanket of bearing frame between the farmland. In this embodiment, the oil seal 2 is sleeved on the spline shaft 3, and the lower end face of the oil seal 2 is in surface-to-surface contact with the upper end face of the rake teeth seat 4, so that the sealing effect is ensured.

As shown in fig. 2, embodiment 2, a protector of drive harrow bearing frame oil blanket, on embodiment 1's basis, harrow toothholder 4 is ball-milling cast iron harrow toothholder, compares in traditional mode carbon steel harrow toothholder and integral key shaft welding an organic whole, the utility model discloses have and change the convenience, change cost-effectively alone, and the ball-milling cast iron harrow toothholder through isothermal quenching has absolute advantages such as intensity is high, the wearability is good, has avoided loaded down with trivial details manual operation when changing harrow toothholder alone, has saved installation and takedown time, has greatly improved work efficiency, has solved and has changed trouble, change with high costsly, fragile, the easy wearing and tearing scheduling problem among the prior art.

The concrete structure is as follows: as shown in fig. 3, the rake teeth seat 4 includes a cylindrical seat body 41, a concentric double ring structure 42 is disposed on an upper portion of the cylindrical seat body 41, and the double ring structure 42 forms an annular slot 43 that is matched with the bearing seat 1. That is, the upper part of the cylindrical seat body 41 is provided with an inner ring, an outer ring and an outer ring which are concentric with the cylindrical seat body, and an annular clamping groove is formed between the inner ring and the outer ring; when the bearing seat 1 is connected with the rake tooth seat 4, the lower part of the bearing seat 1 is just inserted into the annular clamping groove 43 to form a sealed installation cavity of an oil seal, so that foreign matters are prevented from entering the oil seal, and the oil seal is well protected.

In this embodiment, the double-ring structure 42 and the cylindrical base body 41 are integrally formed, the side wall of the cylindrical base body 41 is symmetrically provided with mounting grooves 44 for mounting the rake teeth 7, and the rake teeth 7 and the rake teeth base 4 are fixedly connected by welding, bolting, and the like. In this embodiment, specifically, the cylindrical housing 41 is provided with an axial hole 45 corresponding to the mounting groove 44, and the rake teeth 7 are connected to the cylindrical housing 41 through a fastening bolt 46 penetrating through the axial hole 45.

Further, the middle part of harrow toothholder 4 is equipped with splined hole 9, and splined hole 9 cooperatees with integral key shaft 3, and the integral key shaft is pegged graft in the splined hole promptly, and the integral key shaft rotates and drives harrow toothholder and rotate, realizes the transmission of moment of torsion. And one end of the spline shaft 3 extending into the rake tooth seat 4 is provided with an axial bolt 6, and the axial bolt is axially arranged along the spline shaft and fixedly connected from the end part. In order to ensure the stable connection between the rake tooth seat and the spline shaft in the embodiment, the axial bolt 6 realizes the fixed connection between the spline shaft 3 and the rake tooth seat 4 through the backing plate 5. The end of the spline hole 9 facing the bearing seat 1 is a conical opening, so that the spline shaft can be rapidly and accurately inserted into the spline hole.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a protector of drive harrow bearing frame oil blanket which characterized in that: the scraper chain scraper device comprises a bearing seat (1) and a scraper tooth seat (4), wherein a spline shaft (3) is connected in the bearing seat (1) through a bearing (8), an oil seal (2) is arranged between the spline shaft (3) and the bearing seat (1), the oil seal (2) is positioned below the bearing (8), and the spline shaft (3) extends downwards into the scraper tooth seat (4) and is fixedly connected with the scraper tooth seat (4); the bearing seat (1) is in plug-in sealing fit with the rake tooth seat (4).

2. The protection device for driving rake bearing block oil seal according to claim 1, wherein: the rake teeth seat (4) comprises a cylindrical seat body (41), the upper portion of the cylindrical seat body (41) is provided with a double-ring structure (42) which is arranged concentrically, the double-ring structure (42) forms an annular clamping groove (43) which is matched with the bearing seat (1), the side wall of the cylindrical seat body (41) is provided with a mounting groove (44) which is used for mounting rake teeth (7), and the rake teeth (7) are fixedly connected with the rake teeth seat (4).

3. The protection device for driving rake bearing block oil seal of claim 2, wherein: the double-ring structure (42) and the cylindrical seat body (41) are integrally formed, an axial hole (45) corresponding to the mounting groove (44) is formed in the cylindrical seat body (41), and the rake teeth (7) are connected with the cylindrical seat body (41) through fastening bolts (46) penetrating through the axial hole (45).

4. The protection device for the oil seal of the driving harrow bearing block according to any one of claims 1 to 3, wherein the protection device comprises: the middle part of the rake tooth seat (4) is provided with a spline hole (9), and the spline hole (9) is matched with the spline shaft (3).

5. The protection device for driving rake bearing block oil seal of claim 4, wherein: one end of the spline shaft (3) extending into the rake toothholder (4) is provided with an axial bolt (6), and the axial bolt (6) is fixedly connected with the spline shaft (3) and the rake toothholder (4) through a backing plate (5).

6. The protection device for the drive rake bearing block oil seal of claim 5, wherein: and one end of the spline hole (9) facing the bearing seat (1) is a conical opening.

7. The protection device for the drive rake bearing block oil seal according to any one of claims 1 to 3, 5 and 6, wherein: the oil seal (2) is sleeved on the spline shaft (3), and the lower end face of the oil seal (2) is in surface-to-surface contact with the upper end face of the rake tooth seat (4).

8. The protection device for driving rake bearing block oil seal of claim 7, wherein: the rake tooth holder (4) is a ball-milling cast iron rake tooth holder.