CN201619068U

CN201619068U - Dismounting device and dismounting component for pin shaft of hammer arm for crusher

Info

Publication number: CN201619068U
Application number: CN2010200327449U
Authority: CN
Inventors: 傅敏燕; 冯尔念; 孙蓉娜
Original assignee: Shanghai Mindac Machinery & Equipment Co Ltd
Current assignee: Shanghai Mindac Machinery & Equipment Co Ltd
Priority date: 2010-01-05
Filing date: 2010-01-05
Publication date: 2010-11-03
Anticipated expiration: 2020-01-05

Abstract

The utility model discloses a dismounting device and a dismounting component of a pin shaft of a hammer arm for a crusher, which at least comprises a pin shaft with an internal thread and a dismounting device. The dismounting device comprises a pull rod, an impact baffle plate and an impact hammer. One end of the pull rod is provided with an external thread to match with the internal thread of the pin shaft, and the other end is fixedly connected with the impact baffle plate. The impact hammer is sheathed on the pull rod, and can be against to the impact baffle plate. The dismounting device and the dismounting component of a pin shaft of a hammer arm for a crusher can largely simplify the dismounting of the pin shaft of the hammer arm, and have the advantages of simple operation and high dismounting speed; the pin shaft is sectionalized so that the friction force when the pin shaft is taken out is effectively reduced; the structure is simple so that is convenient to process and manufacture; the dismounted pin shaft can be used continuously; field limitation when in overhauling is solved, and the adaptability is strong; and only the number of extension rods needs to be increased or reduced when in dismounting for equipment with different sizes, so the generality is also good.

Description

Bearing pin provision for disengagement of disintegrating machine hammerhead jib and disconnect assembly

Technical field

The utility model relates to the maintenance technology field of hammer mill, relates in particular to the provision for disengagement and the disconnect assembly of hammerhead jib bearing pin on a kind of hammer mill.

Background technology

Hammer mill is a kind of large granular materials to be crushed to equipment than granule, mainly be applicable to the fragmentation of thermal power plant Fluidized Bed Boiler fire coal, the material that also can be used for simultaneously industry such as mine, metallurgy, chemical industry is as the fragmentation of medium-hard ore and rock.The material collision that to be the tup that utilizes rotation at a high speed fall with eminence of its operation principle is with the material fragmentation.

Tup is installed in of hammerhead jib, and the hammerhead jib other end then is installed on the rotor of equipment by bearing pin, a plurality of tups 1 on the crusher rotor 2 as shown in Figure 1 and hammerhead jib 3, and hammerhead jib 3 is installed on the rotor 2 by bearing pin 4.In general, the hammerhead jib on the disintegrating machine is a forging, and its toughness is fine, can effectively reduce the life-span influence of shock loading to tup and rotor.But hammerhead jib also is to wear and tear, and occurs the uneven phenomenon of wearing and tearing sometimes, so all can cause vibration equipment excessive, therefore, and the use that it need be pulled down again counterweight or more renews.Basically, hammerhead jib is not tear open for a long time, and the hole match ratio on its bearing pin and the rotor disk is tightr, and because environment for use all is in coal ash, through long corrosion, causes whole bearing pin to be bonded at rotor disk, so dismounting needs very big power.Moreover bearing pin all is to be hidden in rotor disk inside, does not have suitable stress point during dismounting, is difficult to make power.

Therefore, in the existing dismounting technology, under the situation of tool using not, all be to adopt fire weldering cutting bearing pin, a bit of then extrudes it from the inside outward with wedge type block.Because the bearing pin mid portion is longer, so place that all will be available often, promptly the place that is not connected with rotor disk all slices off, next staying bit by bit pounding out of dish pars intramuralis then, cut and badly could take out after also will polishing, whole process quite expends time in and strength, also will slice off hammerhead jib sometimes, causes unloading process efficient very low.

The utility model content

The purpose of this utility model provides a kind of provision for disengagement and disconnect assembly that is exclusively used in disintegrating machine hammerhead jib bearing pin, is difficult to problems such as taking-up, complicated operation, efficient be low in order to solve in the hammerhead jib bearing pin unloading process bearing pin.

For achieving the above object, the utility model provides a kind of provision for disengagement of disintegrating machine hammerhead jib bearing pin, comprise stayed mast, impact baffle plate and jump bit, one end of described stayed mast has external screw thread, its other end is fixedlyed connected with impact baffle plate, described jump bit is enclosed within on the stayed mast, and can lean with described impact baffle plate.

Further, the provision for disengagement of described disintegrating machine hammerhead jib bearing pin also comprises extension bar, and the one end has an externally threaded end with described stayed mast fixedlys connected, and its other end also has external screw thread.

Further, described extension bar also is extended with handle at an end that is connected with impact baffle plate.

For achieving the above object, the utility model also provides a kind of disconnect assembly of disintegrating machine hammerhead jib bearing pin, comprise that at least one end has the bearing pin and the provision for disengagement of internal thread, described provision for disengagement comprises stayed mast, impact baffle plate and jump bit, one end of described stayed mast has external screw thread and matches with the internal thread of described bearing pin, its other end is fixedlyed connected with impact baffle plate, and described jump bit is enclosed within on the stayed mast, and can lean with described impact baffle plate.

Further, described bearing pin is made up of multistage, and every section unidirectional one or both ends of bearing pin have internal thread.

Further, described provision for disengagement also comprises extension bar, and the one end has an externally threaded end with described stayed mast fixedlys connected, and its other end also has external screw thread and matches with the internal thread of described bearing pin.

The provision for disengagement of the disintegrating machine hammerhead jib bearing pin that the utility model provides and disconnect assembly can be simplified the dismounting of hammerhead jib bearing pin greatly, particularly: the disintegrating machine hammerhead jib must be fixed on the bearing pin with above-mentioned internal thread on the rotor, and perhaps elder generation is provided with internal thread at an end of this bearing pin before dismounting; At first stayed mast or extension bar are screwed in the screw of bearing pin, use jump bit on stayed mast, to slide then and knock impact baffle plate, thereby drive whole stayed mast and bearing pin is outwards mobile, in rotor disk, be pulled out up to bearing pin.As seen, the utlity model has following positive advancement of technology effect:

1. simple to operate, dismounting speed is fast;

2. by with a whole bearing pin section, break the whole up into parts, effectively reduced the frictional resistance when taking out bearing pin;

3. this provision for disengagement is simple in structure, is convenient to processing and manufacturing;

4. the bearing pin under the dismounting can also continue to use, and has solved the problem that fiery welder plants and cuts off bearing pin and can't reuse;

5. the restriction in place when having solved maintenance, adaptability is stronger, because if be to take out one whole bearing pin, just need the space of a shaft, and the bearing pin of taking-up segmented does not need so big space to realize;

6. for the equipment of different size, only need increase or reduce the quantity of extension bar during dismounting, so versatility is fine.

Description of drawings

For clearlyer understanding the purpose of this utility model, characteristics and advantage, below with reference to accompanying drawing preferred embodiment of the present utility model is described in detail, wherein:

Fig. 1 is the structural representation of existing hammer mill rotor, tup and hammerhead jib;

Fig. 2 is the structural representation of the utility model disintegrating machine hammerhead jib bearing pin provision for disengagement;

Fig. 3 is the structural representation of bearing pin in the utility model; And

Fig. 4 is the application schematic diagram of the utility model disintegrating machine hammerhead jib bearing pin disconnect assembly.

The specific embodiment

See also Fig. 2, in the present embodiment, the provision for disengagement 5 of disintegrating machine hammerhead jib bearing pin comprises stayed mast 51, impact baffle plate 52, jump bit 53 and extension bar 54, and an end of stayed mast 51 has external thread part 511, and its other end and impact baffle plate 52 are welded to connect; Jump bit 53 is enclosed within on the stayed mast 51, and can lean with impact baffle plate 52; One end of extension bar 54 is fixedlyed connected with external thread part 511 screw threads of stayed mast 51, and its other end is also established male end 541; Stayed mast 51 also is extended with handle 55 at the end that impact baffle plate 52 connects.

See also Fig. 3, in the present embodiment, bearing pin is a segmented, is made up of several bearing pin section 6 headtotails, and the two ends of bearing pin section 6 all have internal thread part 61, and internal thread part 61 matches with the external thread part 511 of stayed mast 51 or the male end 541 of extension bar 54.

Please consult Fig. 4 simultaneously, the disintegrating machine hammerhead jib bearing pin disconnect assembly of present embodiment comprises bearing pin and the provision for disengagement 5 that several bearing pin sections 6 are formed, during dismounting, earlier extension bar 54 is screwed in the internal thread part 61 of outermost bearing pin section 6, screw-in depth is big as far as possible, and the stayed mast that will have jump bit then docks with extension bar 54, then uses jump bit to slide on stayed mast and knocks impact baffle plate, take off this section bearing pin section 6 after repeating to knock, and continue dismounting bearing pin section thereafter.Along with the place to go of bearing pin, need to increase the quantity of extension bar 54 so that can dock with it.Certainly, if length allows, do not use extension bar 54 and directly dock with bearing pin yet and be fine with stayed mast.

Further, the material of stayed mast 51, extension bar 54, jump bit 53 and impact baffle plate 52 preferably is spring steel 65Mn, and makes through Overheating Treatment.

In addition, several bearing pin sections 6 also only the end on same direction internal thread is set, it is can operate from the both direction of bearing pin in order to dismantle that two ends all are provided with internal thread.

Claims

1. the provision for disengagement of a disintegrating machine hammerhead jib bearing pin, it is characterized in that: it comprises stayed mast, impact baffle plate and jump bit, and an end of described stayed mast has external screw thread, and its other end is fixedlyed connected with impact baffle plate, described jump bit is enclosed within on the stayed mast, and can lean with described impact baffle plate.

2. the provision for disengagement of disintegrating machine hammerhead jib bearing pin according to claim 1, it is characterized in that: the provision for disengagement of described disintegrating machine hammerhead jib bearing pin also comprises extension bar, the one end has an externally threaded end with described stayed mast fixedlys connected, and its other end also has external screw thread.

3. the provision for disengagement of disintegrating machine hammerhead jib bearing pin according to claim 2 is characterized in that: described extension bar also is extended with handle at an end that is connected with impact baffle plate.

4. the disconnect assembly of a disintegrating machine hammerhead jib bearing pin, it is characterized in that: it comprises that at least one end has the bearing pin and the provision for disengagement of internal thread, described provision for disengagement comprises stayed mast, impact baffle plate and jump bit, one end of described stayed mast has external screw thread and matches with the internal thread of described bearing pin, its other end is fixedlyed connected with impact baffle plate, described jump bit is enclosed within on the stayed mast, and can lean with described impact baffle plate.

5. the disconnect assembly of disintegrating machine hammerhead jib bearing pin according to claim 4 is characterized in that: described bearing pin is made up of multistage, and every section unidirectional one or both ends of bearing pin have internal thread.

6. the disconnect assembly of disintegrating machine hammerhead jib bearing pin according to claim 5, it is characterized in that: described provision for disengagement also comprises extension bar, the one end has an externally threaded end with described stayed mast fixedlys connected, and its other end also has external screw thread and matches with the internal thread of described bearing pin.

7. the disconnect assembly of disintegrating machine hammerhead jib bearing pin according to claim 6 is characterized in that: described extension bar also is extended with handle at an end that is connected with impact baffle plate.