CN201931268U - Pin pulling equipment - Google Patents
Pin pulling equipment Download PDFInfo
- Publication number
- CN201931268U CN201931268U CN 201120011689 CN201120011689U CN201931268U CN 201931268 U CN201931268 U CN 201931268U CN 201120011689 CN201120011689 CN 201120011689 CN 201120011689 U CN201120011689 U CN 201120011689U CN 201931268 U CN201931268 U CN 201931268U
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- China
- Prior art keywords
- equipment
- hydraulic nut
- screw mandrel
- stub end
- baffle plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides pin pulling equipment, which comprises a hand pressing pump, a hydraulic nut, a lead screw, a baffle plate and at least one distance adjusting and limiting sleeve. The hand pressing pump is connected with the hydraulic nut via an oil pipe, the lead screw comprises a large end and a small end, the hydraulic nut is sleeved on the large end, the small end is connected with a pin to be pulled on mechanical equipment, the baffle plate is used for limiting the position of the hydraulic nut on the large end and sleeved on the large end, and at least one distance adjusting and limiting sleeve is sleeved among the outer portion of the lead screw, the baffle plate and the mechanical equipment. When used, the pin pulling equipment is time-saving and labor-saving, and change efficiency is further enhanced. Generally the pin pulling equipment is high in work efficiency during operation.
Description
Technical field
The utility model relates to a kind of device of dismantling plant equipment, relates in particular to a kind of equipment of pulling pin that is used to pull out the bearing pin on the plant equipment.
Background technology
Often be provided with piston shoes on the existing heavy mechanical equipment, for example on the extractive equipment of coal-winning machine and so on, can be provided with guide slip shoe usually and support piston shoes etc.Support piston shoes and directly be connected the effect of supporting and walking of playing with the coal-winning machine supporting leg usually by bearing pin.To be the outer tractive unit of coal-winning machine prevent from the fixture of walking gear and tooth bar disengaging from walking gear to be walked on working face scratch board conveyor tooth bar as the road wheel of walking case and the engagement of matching used working face scratch board conveyor tooth bar guide slip shoe.All kinds of piston shoes on the heavy mechanical equipment are easily worn part, in use, occur that wearing and tearing exceed standard or cracking etc. damages fault through regular meeting.In order to guarantee the normal operation of heavy mechanical equipment, need in time to change the piston shoes that break down.
In the prior art, adopt simple machine tool to extract the bearing pin that connects the piston shoes that break down usually, thereby realize replacing piston shoes as drawing hammer.
But after generally piston shoes broke down, the bearing pin and the hole ablation that connect piston shoes made that bearing pin is difficult to extract.The bearing pin that adopts the existing instrument of pulling pin to extract piston shoes is wasted time and energy.When especially the piston shoes fault appearred in down-hole mining equipment, narrow space had further increased the difficulty of pulling pin.Generally the walking case of extractive equipment must be beaten and transport well, change on the ground.In a word, when adopting the existing instrument of pulling pin to carry out operation, waste time and energy, efficient is comparatively low.
The utility model content
The utility model provides a kind of equipment of pulling pin, the comparatively low defective of efficient when solve adopting the existing instrument of pulling pin to pull pin, the time saving and energy saving equipment of pulling pin when a kind of the use is provided.
The utility model provides a kind of equipment of pulling pin, and comprises handlance, hydraulic nut and screw mandrel; Described handlance is connected by oil pipe with described hydraulic nut, and described screw mandrel comprises stub end and little head end; Described hydraulic nut is set on the described stub end, and described little head end is connected with the bearing pin that will extract on the plant equipment;
Also comprise and be used to limit baffle plate and at least one the adjustment range line cover that described hydraulic nut is positioned at the position on the described stub end; Described baffle-plate-sleeve is located on the described stub end; Described at least one adjustment range line cover is set between described screw mandrel outside, described baffle plate and the described plant equipment.
The aforesaid equipment of pulling pin, described at least one adjustment range line cover is set in the outside or described stub end of the outside of described stub end, described little head end and the outside that described microcephaly holds intersection.
The aforesaid equipment of pulling pin, the cross section of described at least one adjustment range line cover is circular.
The aforesaid equipment of pulling pin, the internal diameter of described at least one adjustment range line cover is greater than the surface size of the described bearing pin that will extract.
The equipment of pulling pin of the present utility model by hydraulic nut being set in the stub end of screw mandrel, is connected the bearing pin of the piston shoes that will extract on little head end of screw mandrel and the plant equipment; Handlance is suppressed to hydraulic nut, makes hydraulic nut produce a power that deviates from the bearing pin direction to screw mandrel, so that the bearing pin that connects the piston shoes that damage on the plant equipment is extracted, thereby the piston shoes that damage is changed.Adopt the equipment of pulling pin of the present utility model, suppress by handlance and can extract the bearing pin that connects the damage piston shoes.For the existing instrument of pulling pin, the equipment of pulling pin of the present utility model is time saving and energy saving when using, and has improved the efficient of pulling pin, thereby has further strengthened the replacing efficient of piston shoes.In a word, when adopting the equipment of pulling pin of the present utility model to work, operating efficiency is higher.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply, apparently, accompanying drawing in describing below is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the generalized section of the equipment of pulling pin of a kind of embodiment of the utility model;
Fig. 2 is the structural representation of screw mandrel shown in Figure 1;
Fig. 3 is a kind of view of the equipment of pulling pin embodiment illustrated in fig. 1;
Fig. 4 is the generalized section of the equipment of pulling pin of the another kind of embodiment of the utility model.
The specific embodiment
For the purpose, technical scheme and the advantage that make the utility model embodiment clearer, below in conjunction with the accompanying drawing among the utility model embodiment, technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Fig. 1 is the generalized section of the equipment of pulling pin of a kind of embodiment of the utility model.Fig. 2 is the structural representation of screw mandrel shown in Figure 1.As shown in Figure 1, the equipment of pulling pin of present embodiment comprises handlance 1, hydraulic nut 2 and screw mandrel 3.Wherein handlance 1 and hydraulic nut 2 can adopt matching used handlance and hydraulic nut in the prior art.Specifically connect between handlance 1 and the hydraulic nut 2 by hydraulic circuit.As shown in Figure 2, screw mandrel 3 comprises that stub end 31 and microcephaly hold 32.Hydraulic nut 2 is set on the stub end 31.The microcephaly hold 32 with plant equipment 7 on, the bearing pin that is connected with the piston shoes that will extract connects, particularly with bearing pin on the screw thread box be connected.Stub end 31 on the screw mandrel 3 here and microcephaly hold and are provided with screw thread on 32.The plant equipment 7 here for example can be the walking case on the digger.
As shown in Figure 1, the equipment of pulling pin of present embodiment can also comprise a baffle plate 4 and at least one adjustment range line cover 5.Baffle plate 4 is set on the stub end 31 of screw mandrel 3.Baffle plate 4 and adjust range line cover 5 and be used for hydraulic nut 2 is carried out spacing together specifically limits hydraulic nut 2 and is positioned at position on the stub end 31.Adjust range line cover 5 and be set between outside, the baffle plate 4 of screw mandrel 3 plant equipment 7 corresponding, adjust range line and overlap 5 and be used to the bearing pin of being pulled out that stroke is provided by screw mandrel 3 with the bearing pin that will extract.Here the hollow space of the sheathed screw mandrel 3 of baffle plate 4 is the cylindric of a hollow.The columned diameter of section of its hollow is slightly larger than the diameter of section of the stub end 31 of screw mandrel 3, to guarantee that baffle plate 4 just in time can be set on the stub end 31 of screw mandrel 3.Adjust range line cover 5 in order to supporting baffle 4, move towards the direction of baffle plate 4 to prevent hydraulic nut 2.Adjusting range line cover 5 also is hollow structure, and hollow space also is a hollow cylindrical, and the internal diameter of hollow cylindrical is also wanted the diameter of section of the stub end 31 of big and screw mandrel 3.Adjust range line cover 5 and in the process of pulling pin, connect with the surface of baffle plate 4 and plant equipment 7 respectively, thereby can keep out baffle plate 4, stop hydraulic nut 2 to move right.Form the space of moving outside can be for the bearing pin of being pulled out between range line cover 5, baffle plate 4, screw mandrel 3 and the plant equipment 7 adjusting by screw mandrel 3.
When handlance 1 by suppressing the hydraulic oil in the oil circuit between handlance 1 and hydraulic nut 2, make hydraulic oil produce an active force to the right to hydraulic nut 2, this baffle plate 4 and adjust position on the stub end 31 that range line cover 5 restriction hydraulic nuts 2 are positioned at screw mandrel 3 stops the slip of hydraulic nut 2 with respect to screw mandrel 3.Because the prevention of baffle plate 4 and adjustment range line cover 5, hydraulic nut 2 can't slide to the right along the stub end 31 of screw mandrel 3.By being threaded, when hydraulic nut 2 can't slide to the right with respect to stub end 31, stub end 31 conversely can be around the screw thread of hydraulic nut 2 inside to taking exercises between stub end 31 and the hydraulic nut 2.That is to say that the active force to the right that hydraulic nut 2 will be subjected to acts on to screw mandrel 3 in the other direction, make screw mandrel 3 be subjected to a reciprocal active force left.Thereby screw mandrel 3 can drive connect the fault piston shoes bearing pin to left movement, up to extracting bearing pin, thereby be convenient to change piston shoes.
Adopt the equipment of the pulling pin workflow of present embodiment as follows:, the oil in the oil pipe that connects hydraulic nut 2 to be produced hydraulic coupling by suppressing handlance 1; The oil that has action of hydraulic force then is full of hydraulic nut 2 makes hydraulic nut 2 clamping screws 3.Hydraulic oil produces the power to right to hydraulic nut simultaneously, and still, this moment, hydraulic nut 2 right-hand baffle plate 4 and the adjustment range line covers 5 can stop hydraulic nut 2 to slide to the right.The power to right that is subjected to of hydraulic nut 2 is converted into stub end 31 to screw mandrel 3 and produces an outside pulling force (as left direction in Fig. 1 institute) like this, and outside promptly the referring to here deviated from the bearing pin direction that will extract on the plant equipment 7.This pulling force pulling screw mandrel 3 outwards moves and since the microcephaly hold 32 with plant equipment 7 on the bearing pin that will extract on the screw thread box be connected, thereby hold 32 bearing pins that will connect piston shoes outwards to pull out by the microcephaly of screw mandrel 3.
When bearing pin is pulled outwardly out an end distance to state as shown in Figure 3 the time, particularly, Fig. 3 is a kind of view of the equipment of pulling pin embodiment illustrated in fig. 1.As shown in Figure 3, because bearing pin is along with screw mandrel 3 is drawn out after the segment distance, bearing pin is more and more nearer apart from baffle plate 4, and the stroke that causes bearing pin outwards to move is restricted.In order to guarantee that bearing pin is extracted smoothly.When the outwards mobile stroke of bearing pin is restricted, can between baffle plate 4 and mechanical surface, increase by a cover again and adjust range line cover 5, think that bearing pin provides enough outwards mobile spaces, guarantees that bearing pin is extracted smoothly.This moment, the corresponding equipment of pulling pin was the equipment of pulling pin of the another kind of embodiment of the utility model shown in Figure 4, and comprised during this is pulled pin and establishes that two covers adjust range lines cover 5.As shown in Figure 4, in the process of pulling pin, the surface that two covers are adjusted range line cover 5 and baffle plate 4 and plant equipment 7 connects, and helps the drive bearing pin of screw mandrel 3 outwards to move.Repeat above-mentioned steps,, the piston shoes that are connected with bearing pin are changed until bearing pin is extracted.Here the operation principle of handlance 1 and hydraulic nut can not repeat them here with reference to prior art.
Need to prove, bearing pin is drawn out after the segment distance along with screw mandrel 3, the stub end 31 of screw mandrel 3 and microcephaly hold 32 intersection may move to baffle plate 4 places, at this moment, if continue to be pulled outwardly bearing pin, when hydraulic nut 2 was shifted to the microcephaly and held 32 by stub end 31, hydraulic nut will can't be set on the stub end 31 of screw mandrel 3 in landing, causes and can't pull pin.Therefore, when the stub end 31 of screw mandrel 3 and microcephaly hold 32 intersection to move to baffle plate 4 places, also need between baffle plate 4 and plant equipment 7, increase by a cover this moment again and adjust range line cover 5, increase baffle plate 4 and hold the position of 32 intersection apart from stub end 31 and microcephaly, prevent hydraulic nut 2 landings, normally pull pin to guarantee the equipment of pulling pin.
Need to prove, increase the adjustment range line and overlapped 5 o'clock, all need handlance 1 to stop to suppress, hydraulic nut 2 is carried out release, unload lower baffle plate 4 then, between baffle plate 4 and plant equipment 7, increase again and adjust range line cover 5.
To adjust range lines cover 5 be example to comprise two covers in the present embodiment, in actual the use, can select to adjust the number of range line cover 5 according to actual conditions.
The equipment of pulling pin of present embodiment, by hydraulic nut 2 being set in the stub end 31 of screw mandrel 3, with the microcephaly of screw mandrel 3 hold 32 with plant equipment 7 on the bearing pin that will extract on the screw thread box cooperate and connect.Suppress to hydraulic nut 2 by handlance 1, make 2 pairs of screw mandrels of hydraulic nut 3 produce a power that deviates from the bearing pin direction, bearing pin is extracted, thereby the piston shoes that damage on the plant equipment 7 are removed.Adopt the equipment of pulling pin of present embodiment, suppress by handlance 1 and can extract bearing pin.For the existing instrument of pulling pin, the equipment of pulling pin of present embodiment is time saving and energy saving when using, and has improved the efficient of pulling pin, thereby has further strengthened the replacing efficient of piston shoes.In a word, when adopting the equipment of the pulling pin work of present embodiment, operating efficiency is higher.
Need to prove, when not beginning to extract bearing pin, when bearing pin is positioned at the darker position of plant equipment, adjust the outside that range line cover 5 specifically can be set in the stub end 31 of screw mandrel 3.Along with bearing pin constantly is pulled out,, adjust the outside that range line cover 5 can sheathed stub end 31 be held 32 intersections with the microcephaly also along with the number of adjusting range line cover 5 increases.Along with bearing pin continue extract, adjust range line cover 5 and can be set in the microcephaly and hold 32 outside.
Need to prove that the cross section that at least one of the foregoing description adjusted range line cover 5 is circular.And the inside diameter D of adjusting as shown in Figure 4, range line cover 5 greater than the bearing pin that will extract at plant equipment 7 lip-deep size d.Like this, adjust range line cover 5 and also can not hinder screw mandrel 3 and outwards move, further help the replacing of the extracting of bearing pin, piston shoes.
It should be noted that at last: above embodiment only in order to the explanation the technical solution of the utility model, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, and perhaps part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of each embodiment technical scheme of the utility model.
Claims (4)
1. the equipment of pulling pin is characterized in that, comprises handlance, hydraulic nut and screw mandrel; Described handlance is connected by oil pipe with described hydraulic nut, and described screw mandrel comprises stub end and little head end; Described hydraulic nut is set on the described stub end, and described little head end is connected with the bearing pin that will extract on the plant equipment;
Also comprise and be used to limit baffle plate and at least one the adjustment range line cover that described hydraulic nut is positioned at the position on the described stub end; Described baffle-plate-sleeve is located on the described stub end; Described at least one adjustment range line cover is set between described screw mandrel outside, described baffle plate and the described plant equipment.
2. the equipment of pulling pin according to claim 1 is characterized in that, described at least one adjustment range line cover is set in the outside or described stub end of the outside of described stub end, described little head end and the outside that described microcephaly holds intersection.
3. the equipment of pulling pin according to claim 1 is characterized in that, the cross section of described at least one adjustment range line cover is circular.
4. the equipment of pulling pin according to claim 3 is characterized in that, the internal diameter of described at least one adjustment range line cover is greater than the surface size of the described bearing pin that will extract.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120011689 CN201931268U (en) | 2011-01-11 | 2011-01-11 | Pin pulling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120011689 CN201931268U (en) | 2011-01-11 | 2011-01-11 | Pin pulling equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201931268U true CN201931268U (en) | 2011-08-17 |
Family
ID=44442807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120011689 Expired - Fee Related CN201931268U (en) | 2011-01-11 | 2011-01-11 | Pin pulling equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201931268U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012145975A1 (en) * | 2011-04-28 | 2012-11-01 | 长沙中联重工科技发展股份有限公司 | Pulling pin device |
| CN103286550A (en) * | 2013-06-18 | 2013-09-11 | 济钢集团有限公司 | Tool for pulling out pin shafts |
| CN107283153A (en) * | 2017-05-27 | 2017-10-24 | 宁波帅特龙集团有限公司 | A kind of bearing pin pulling attachment and its operating method |
-
2011
- 2011-01-11 CN CN 201120011689 patent/CN201931268U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012145975A1 (en) * | 2011-04-28 | 2012-11-01 | 长沙中联重工科技发展股份有限公司 | Pulling pin device |
| CN103286550A (en) * | 2013-06-18 | 2013-09-11 | 济钢集团有限公司 | Tool for pulling out pin shafts |
| CN107283153A (en) * | 2017-05-27 | 2017-10-24 | 宁波帅特龙集团有限公司 | A kind of bearing pin pulling attachment and its operating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110817 Termination date: 20150111 |
|
| EXPY | Termination of patent right or utility model |