CN202251865U

CN202251865U - Sealing structure for output shaft of speed reducer

Info

Publication number: CN202251865U
Application number: CN2011203392425U
Authority: CN
Inventors: 冯晚平; 田琴亚; 谷晓金
Original assignee: JIANGYIN KEWEI GEARBOXES MANUFACTURE CO Ltd
Current assignee: JIANGYIN KEWEI GEARBOXES MANUFACTURE CO Ltd
Priority date: 2011-09-08
Filing date: 2011-09-08
Publication date: 2012-05-30
Anticipated expiration: 2021-09-08

Abstract

The utility model discloses a sealing structure for an output shaft of a speed reducer. In the sealing structure, a quickly-replaced sealing device is arranged on the output shaft of the speed reducer, and consists of a hub disk, a casing and a U-shaped sealing ring, wherein the casing is a fixing piece and is fixed on the outer shell of the speed reducer by bolts; the hub disk is a rotating piece and is fixed on the output shaft of the speed reducer in an expansion connecting mode; a groove is formed on a sealing surface on which the hub disk is matched with the casing; and the U-shaped sealing ring is arranged in the groove and matched with the inner hole surface of the casing to form the sealing surface. Due to the sealing structure for the output shaft of the speed reducer, under the condition of not dismounting the coupling of the output shaft of the speed reducer, a useless sealing ring can be quickly replaced, time and labor are saved, high efficiency is achieved, and normal production is not influenced.

Description

A kind of sealing configuration of speed reducer output shaft

Technical field

The utility model relates to speed reducer, is specifically related to a kind of sealing configuration of speed reducer output shaft.

Background technique

At present, traditional speed reducer output shaft sealing means adopts oil sealing sealing more, and little although oil sealing sealing has a mounting point, axial dimension is little, compact structure, and good seal performance, plurality of advantages such as working life is long, unusual difficulty is changed in the oil sealing sealing back of losing efficacy.Because be equipped with coupling on the speed reducer output shaft; Coupling axis hole and speed reducer output shaft shaft extension cooperate adopt keys to be connected or do not have the key interference connect, must at first remove coupling before the replacing inefficacy oil sealing, and during the dismounting working expenditure of coupling, effort; Especially in the down-hole, mine; Speed reducer work under bad environment (high temperature, humidity, many dust), coupling and the corrosion of speed reducer output shaft shaft extension fitting surface, it is narrow and small that the equipment of adding stores up the space, chamber; Extracting tool inconvenience uses etc., these all make oil seal replacement work become unusual difficult.For high-power gear reducer, removed gug after its output shaft oil sealing sealing lost efficacy usually and handle to specialized factory, cause to produce and interrupt.The continuity features of mine downhole production has determined speed reducer output shaft inefficacy oil sealing tradition replacing way must have a strong impact on mine production, causes than large economy to bargh and loses.

The model utility content

The purpose of the utility model is to overcome the defective that exists in the existing technology; A kind of speed reducer with quick change sealing function is provided; To overcome the deficiency that coupling must be at first removed in existing speed reducer oil sealing sealing inefficacy back replacing; Not only can be implemented in and change the sealing of losing efficacy under the condition of not removing coupling, and can realize quick replacing, utilize the equipment maintenance repair time just can accomplish smoothly.

For realizing above-mentioned purpose; The technological scheme of the utility model is the sealing configuration of a kind of speed reducer output shaft of design; It is characterized in that the output shaft that said sealing configuration is included in said speed reducer is provided with the quick change seal arrangement, said quick change seal arrangement is made up of reel, housing and U RunddichtringO; Its middle shell is a fixed block, on the shell that is bolted to speed reducer; Said reel is a revolving part; Said reel adopts the swelling Placement to be fixed on the speed reducer output shaft; On the sealing surface of said reel and shell, be provided with groove, in said groove, be placed with the U RunddichtringO, said U RunddichtringO cooperates the formation sealing surface with the housing inner hole surface.

Wherein, the endoporus in the said housing is the sealing surface in the quick change seal arrangement, makes bearing (ball) cover again and uses; On the sealing surface of said reel, process two seals groove at least, the U RunddichtringO is housed in said groove.

Wherein, be processed with oil hole on the top of said housing.

The advantage and the beneficial effect of the utility model are: the sealing configuration of this speed reducer output shaft can realize changing fast the inefficacy seal ring under the condition of not removing the speed reducer output shaft coupling, time saving and energy saving efficient is high, does not influence ordinary production.

Description of drawings

Fig. 1 is the sealed structural representation of the utility model speed reducer output shaft;

Fig. 2 is the sealing configuration schematic diagram of the utility model speed reducer output shaft.

Embodiment

Below in conjunction with accompanying drawing and embodiment, the embodiment of the utility model is further described.Following examples only are used for more clearly explaining the technological scheme of the utility model, and can not limit the protection domain of the utility model with this.

As shown in Figure 1, the utility model is a kind of sealing configuration at speed reducer output shaft, on the output shaft 3 of this speed reducer 4, is provided with a quick change seal arrangement 5, changes the pattern of speed reducer output shaft 3 sealing lubricating oils the sealing of into U RunddichtringO by traditional oil sealing sealing.In quick change seal body structure shown in Figure 2; Reel 9 processes the swelling structure with the output shaft point of attachment; Adopt the swelling connecting mode to be fixed on the speed reducer output shaft 3; It is good that swelling connects centering property, and mounting or dismounting or the relative position of adjustment reel on output shaft are convenient, and have sealing function.For improving the reliability of sealing, process two seals groove 7 on reel 9 sealing surfaces, each adorns U RunddichtringO 10 one, and two-part of reel 9 connect with four clamping bolts 8; Housing 11 as bearing gland, had been again the important component part of seal arrangement both, and its inner hole surface should have higher slightly degree of making and hardness requirement as sealing surface.

For reducing seal ring surface friction drag, prolong its working life, improve lubrication effect, process an oil hole 6 on housing top, the lubricant oil of regularly annotating makes the gap stored proper amount of lubricating agent of two seals interannular.

In Fig. 1, require to reserve end clearance S according to design and installation between coupling driven end 1 and the drive end 2, the dismounting of U RunddichtringO 10 is carried out through end clearance S.When changing seal ring, the bolt that connects coupling drive end 1 and driven end 2 is unclamped, the U RunddichtringO is put into from the end clearance; Unclamp the bolt on the housing 11, housing 11 is withdrawed from, take off old U RunddichtringO 10, new U RunddichtringO is put into the sealed groove 7 on the reel 9, housing 11 is pushed and is pressed on the U type sealing seal ring 10, bolt on; The bolt that will connect coupling drive end 1 and driven end 2 again tightens and gets final product.

The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection domain of the utility model.

Claims

1. the sealing configuration of a speed reducer output shaft; It is characterized in that; The output shaft that said sealing configuration is included in said speed reducer is provided with the quick change seal arrangement; Said quick change seal arrangement is made up of reel, housing and U RunddichtringO, and its middle shell is a fixed block, on the shell that is bolted to speed reducer; Said reel is a revolving part; Said reel adopts the swelling Placement to be fixed on the speed reducer output shaft; On the sealing surface of said reel and shell, be provided with groove, in said groove, be placed with the U RunddichtringO, said U RunddichtringO cooperates the formation sealing surface with the housing inner hole surface.

2. the sealing configuration of speed reducer output shaft as claimed in claim 1 is characterized in that, the endoporus in the said housing is the sealing surface in the quick change seal arrangement, makes bearing (ball) cover again and uses; On the sealing surface of said reel, process two seals groove at least, the U RunddichtringO is housed in said groove.

3. the sealing configuration of speed reducer output shaft as claimed in claim 1 is characterized in that, is processed with oil hole on the top of said housing.