CN204588356U - Lubrication system is supportted between a kind of anti-falling safety device gear wheel shaft and end cap - Google Patents

Abstract

The utility model relates between a kind of anti-falling safety device gear wheel shaft and end cap and supports lubrication system, mainly comprises shell, inner casing, gear wheel shaft, centrifugal governor parts, end cap and top cover; Described gear wheel shaft is a stepped axis body coaxially arranged with inside and outside shell, its be divided into successively be vertically positioned at gear segment outside end cap, by be positioned at end cap central mounting hole rear support section, for installing the eccentric unit construction section of centrifugal governor parts and embedding the front support section at inner casing center; Also have a shoe cream room be communicated with the inner of filling passage in described gear wheel shaft rear support section, this shoe cream room assumes diamond in shape and axis along gear wheel shaft is arranged.The utility model has the advantage of: between anti-falling safety device gear wheel shaft of the present utility model and end cap, support lubrication system, a shoe cream room be communicated with the inner of filling passage is added in rear support section, when occurring oil starvation, cannot oiling time, the oil in shoe cream room can be utilized to lubricate, ensure the normal lubrication of the first rolling bearing between gear wheel shaft and end cap.

Description

Lubrication system is supportted between a kind of anti-falling safety device gear wheel shaft and end cap

Technical field

The utility model relates to a kind of anti-falling safety device, particularly supports lubrication system between a kind of anti-falling safety device gear wheel shaft and end cap.

Background technology

Anti-falling safety device is parts important on building hoist, and it be relied on to eliminate the generation of cage falling accident, ensures the life security of occupant, therefore to the predelivery test of anti-falling safety device and later maintenance all very strict.

The patent No. is in the utility model patent of 201410089129.4, refer to a kind of anti-falling safety device, comprise inner casing, shell and gear wheel shaft, described shell front and back end connects end cap and top cover respectively, the inner casing end be positioned in shell is provided with belleville spring, to be positioned in inner casing and end cap gear wheel shaft on all cover have rolling bearing, an outside framework oil seal is equipped with in rolling bearing outer end in described inner casing, in rolling bearing in described end cap, outer end is all equipped with on the gear wheel shaft in outside framework oil seal end cap He on gear wheel shaft path spindle nose and is all offered annular oil groove, described annular oil groove is communicated with oil outlet,

Operationally, to give from the oiling of gear wheel shaft end face, but not very convenient, and once there is oil starvation, cannot oiling, can only dry friction send abnormal sound, the wearing and tearing of accelerating gear axle and lining between gear wheel shaft and lining, reduce service life.

Summary of the invention

The technical problems to be solved in the utility model is to provide a kind ofly to be had oil storage function and then ensures to support lubrication system between the anti-falling safety device gear wheel shaft of normal lubrication and end cap.

For solving the problems of the technologies described above, the technical solution of the utility model is: support lubrication system between a kind of anti-falling safety device gear wheel shaft and end cap, mainly comprises shell, inner casing, gear wheel shaft, centrifugal governor parts, end cap and top cover; Its innovative point is: described gear wheel shaft is a stepped axis body coaxially arranged with inside and outside shell, its be divided into successively be vertically positioned at gear segment outside end cap, by be positioned at end cap central mounting hole rear support section, for installing the eccentric unit construction section of centrifugal governor parts and embedding the front support section at inner casing center; Between described gear wheel shaft rear support section and end cap, the first rolling bearing is set, the second rolling bearing is set between gear wheel shaft front support section and inner casing; Be respectively arranged with an an annular oil groove A and annular oil groove B at the inside face of the first rolling bearing and the second rolling bearing, there is at gear wheel shaft the straight oily passage also axially arranged of a connection annular oil groove A and annular oil groove B; The central shaft hole inwall of described end cap is drilled with one for the filling passage of oiling, and the inner of this filling passage is communicated with annular oil groove A, and outer end extends to the outside face of end cap, also has a shoe cream room be communicated with annular oil groove A in described gear wheel shaft rear support section.

Further, described shoe cream room assumes diamond in shape, and this shoe cream room is axially arranged along gear wheel shaft, and it is centrally located on the line of centers of gear wheel shaft, and the corner of shoe cream room outwards and be communicated with annular oil groove A respectively by an oil discharge passage.

The utility model has the advantage of:

(1) lubrication system is supportted between anti-falling safety device gear wheel shaft of the present utility model and end cap, a shoe cream room be communicated with the inner of filling passage is added in rear support section, when occurring oil starvation, cannot oiling time, the oil in shoe cream room can be utilized to lubricate, ensure the normal lubrication of the first rolling bearing between gear wheel shaft and end cap;

(2) the utility model shoe cream room assumes diamond in shape, this shoe cream room be centrally located on the line of centers of gear wheel shaft, the corner of shoe cream room outwards and be communicated with annular oil groove A respectively by an oil discharge passage, when gear wheel shaft High Rotation Speed, the V-structure of shoe cream room corner is utilized to be thrown away by the oil stored in shoe cream room smoothly and export in annular oil groove A.

Accompanying drawing explanation

Fig. 1 is the structural representation supportting lubrication system between a kind of anti-falling safety device gear wheel shaft of the utility model and end cap.

Fig. 2 is the cutaway view of A-A line in Fig. 1.

Detailed description of the invention

As depicted in figs. 1 and 2, the utility model discloses between a kind of anti-falling safety device gear wheel shaft and end cap and support lubrication system, mainly comprise shell 1, inner casing 2, gear wheel shaft 3, centrifugal governor parts 4, end cap 5 and top cover 6;

The reducing type housing that shell 1 is shaped for inblock cast, shell 1 large end outer face is connected with end cap 5 by flange arrangement, and small end outer face is connected with top cover 6;

Inner casing 2 is coaxially arranged in shell 1, and inner casing 2 comprises inner casing conical section and cervical part of esophagus, and inner casing conical section has one can coordinate with shell 1 cone-shaped inner surface the conical outer surface forming friction pair, and the inner chamber that can hold centrifugal governor parts 4; Inner casing cervical part of esophagus stretches in shell 1, be provided with the disk spring 7 of some coaxial packages on inner casing cervical part of esophagus in the toroidal cavity formed between inner casing cervical part of esophagus and shell 1 small end, and inner casing cervical part of esophagus is threaded and can moves axially along inner casing 2 pressurizing nut 8 compressing disk spring 7 foremost;

Gear wheel shaft 3 be one with inner casing 2, the coaxial stepped axis body arranged of shell 1, its be divided into successively be vertically positioned at gear segment outside end cap 5, by be positioned at end cap 5 center mounting hole rear support section, for installing the eccentric unit construction section of centrifugal governor parts 4 and embedding the front support section at inner casing 2 center;

First rolling bearing 9 is set between gear wheel shaft 3 rear support section and end cap 5, the second rolling bearing 10 is set between gear wheel shaft 3 front support section and inner casing 2; Be respectively arranged with an an annular oil groove A11 and annular oil groove B12 at the inside face of the first rolling bearing 9 and the second rolling bearing 10, there is at gear wheel shaft 3 the straight oily passage 13 also axially arranged of a connection annular oil groove A11 and annular oil groove B12; The central shaft hole inwall of end cap 5 is drilled with one for the filling passage 14 of oiling, the inner of this filling passage 14 is communicated with annular oil groove A11, outer end extends to the outside face of end cap 5, also has a shoe cream room 15 be communicated with annular oil groove A11 in gear wheel shaft 3 rear support section; In the present embodiment, shoe cream room 15 assumes diamond in shape, this shoe cream room 15 is arranged along the axis of gear wheel shaft 3, it is centrally located on the line of centers of gear wheel shaft 3, the corner of shoe cream room 15 outwards and be communicated with annular oil groove A11 respectively by an oil discharge passage 16, when gear wheel shaft 3 High Rotation Speed, the V-structure of shoe cream room 15 4 jiaos is utilized smoothly the oil stored in shoe cream room 15 to be thrown away and exported in annular oil groove A15.

Safe anti-falling principle is:

Elevator normal operating condition, the gear segment of gear wheel shaft engages with the tooth bar of elevator, and rotate thereupon, when elevator runs downwards in command speed, gear wheel shaft drives centrifugal governor parts normally to rotate, the centrifugal-block of centrifugal governor parts cannot overcome the elastic deformation power of making leaf spring, therefore under the effect of making leaf spring, is close to centrifugal block;

Elevator overload operation state, when elevator downstream rate exceedes command speed, because gear wheel shaft drives centrifugal governor parts at high speeds to rotate, centrifugal-block is made to produce the centnifugal force enough overcoming making leaf spring elastic deformation power, and then centrifugal-block is pressed to inner casing, inner casing is rotated thereupon, and then the pressurizing nut mobile compression disk spring vertically on drive inner casing, the conical outer surface of inner casing is pulled to the cone-shaped inner surface of shell, the friction pair that both utilizations form forms lock torque, realizes anti-fall autobrake.

More than show and describe groundwork of the present utility model and principal character.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.

Claims (2)

1. support a lubrication system between anti-falling safety device gear wheel shaft and end cap, mainly comprise shell, inner casing, gear wheel shaft, centrifugal governor parts, end cap and top cover; It is characterized in that:

Described gear wheel shaft is a stepped axis body coaxially arranged with inside and outside shell, its be divided into successively be vertically positioned at gear segment outside end cap, by be positioned at end cap central mounting hole rear support section, for installing the eccentric unit construction section of centrifugal governor parts and embedding the front support section at inner casing center;

Between described gear wheel shaft rear support section and end cap, the first rolling bearing is set, the second rolling bearing is set between gear wheel shaft front support section and inner casing; Be respectively arranged with an an annular oil groove A and annular oil groove B at the inside face of the first rolling bearing and the second rolling bearing, there is at gear wheel shaft the straight oily passage also axially arranged of a connection annular oil groove A and annular oil groove B; The central shaft hole inwall of described end cap is drilled with one for the filling passage of oiling, and the inner of this filling passage is communicated with annular oil groove A, and outer end extends to the outside face of end cap, also has a shoe cream room be communicated with annular oil groove A in described gear wheel shaft rear support section.

2. support lubrication system between anti-falling safety device gear wheel shaft according to claim 1 and end cap, it is characterized in that: described shoe cream room assumes diamond in shape, this shoe cream room is axially arranged along gear wheel shaft, it is centrally located on the line of centers of gear wheel shaft, and the corner of shoe cream room outwards and be communicated with annular oil groove A respectively by an oil discharge passage.