CN204472942U - Track takeup - Google Patents
Track takeup Download PDFInfo
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- CN204472942U CN204472942U CN201420847967.9U CN201420847967U CN204472942U CN 204472942 U CN204472942 U CN 204472942U CN 201420847967 U CN201420847967 U CN 201420847967U CN 204472942 U CN204472942 U CN 204472942U
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- spring
- cylinder body
- track takeup
- assembly
- pull bar
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Abstract
The utility model relates to a kind of track takeup.It comprises separate spring assembly (1) and housing assembly (2), one end of described housing assembly (2) and the one end fits of spring assembly (1), spring assembly (1) comprises pull bar (1.1), spring perch (1.2), recoil spring (1.3) and stop collar (1.5), and housing assembly (2) comprises push rod (2.1), cylinder body (2.2), fuel feeding valve (2.5) and draining valve (2.6).A kind of track takeup of the utility model, the housing assembly of this device and spring assembly adopt split-type structural, and the design of recoil spring can not be subject to the restriction of piston rod, and the flexibility ratio of production is high; Simultaneous buffering spring structure is compact, and wire diameter is little, good buffer effect.
Description
Technical field
The utility model relates to a kind of track takeup, for bulldozer.Belong to vehicle fitting technical field.
Background technology
Crawler doer running gear is used to support body, driving engine to pass to torque on drive wheel and converting rotary motion be bulldozer work with travel needed for propulsive effort and forward and backward motion, it has the advantages such as tractive force is large, grounding pressure is low, hill climbing ability is strong, turn radius is little.Two crawler belts in left and right surround on drive wheel, caterpillar wheel, holder sprocket wheel, guide wheel, by tightening device tensioning, and direct and earth surface.The effect of track takeup recoil spring is: 1. ensure suitable track tensioning force; 2., when track adjusting wheel is subject to the impact load in front, recoil spring retraction, to absorb vibration, prevents crawler belt and drive wheel from damaging.
When designing tightening device recoil spring, two major issues that must consider are preloading (predetermincd tension of crawler attachment) and the buffering capacity of spring.
The predetermincd tension of crawler attachment has a significant impact crawler travel performance tool, predetermincd tension is excessive, and make track rigidity too large, tightening device does not have buffer action, the increase of crawler running machinery internal friction can be caused simultaneously, thus cause the loss of engine power and accelerate the rate of wear of crawler belt; Predetermincd tension is too little can make slack of track again, does not have tension, to cause above crawler belt vibration simultaneously and beats, also can cause the increase of friction force.Therefore, in design a rational predetermincd tension is provided to crawler attachment, to the walking performance improving crawler belt, there is great effect.
The buffering capacity of recoil spring and stroke have a significant impact crawler travel performance, if the stroke of recoil spring is too small, when track adjusting wheel be subject to front impact load or because of silt, finger stone etc. slip into drive wheel roller seating space, crawler belt, caterpillar wheel and holder sprocket wheel time, just rigid collision may be caused, cause crawler belt to transship and nutted rod distortion, thus affect the performance of endless track installation.Therefore recoil spring must have certain cushion stroke, to ensure that trackslipping appears in crawler belt in these cases.
The housing assembly of existing track takeup and spring assembly are all-in-one-piece, and namely the upper cover of piston rod of oil cylinder is provided with recoil spring, and the two ends of recoil spring offset with cylinder body and crawler belt Connection Block respectively.Because recoil spring is on the piston rod sheathed, therefore recoil spring stroke and preload and be all subject to the restriction of the piston rod of oil cylinder, the flexibility ratio of production is poor.
Oiling and a shared valve of draining the oil on the housing assembly of existing track takeup, when housing assembly internal pressure is higher, valve can be rushed out, and has potential safety hazard.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of track takeup, and the housing assembly of this device and spring assembly adopt split-type structural, and the design of recoil spring can not be subject to the restriction of piston rod, and the flexibility ratio of production is high; Simultaneous buffering spring structure is compact, and wire diameter is little, good buffer effect.
The purpose of this utility model is achieved in that
A kind of track takeup, is characterized in: described track takeup comprises separate spring assembly and housing assembly, one end of described housing assembly and the one end fits of spring assembly.
A kind of track takeup of the utility model, its spring assembly comprises pull bar, spring perch, recoil spring and stop collar, described spring perch has two and positioned opposite, stop collar is provided with between two spring perches, stop collar is arranged with recoil spring, and the two ends of recoil spring offset with two spring perches respectively, and the bar portion of described pull bar is successively through first spring perch, stop collar and second spring perch, the head of pull bar and first spring perch offset, and afterbody and second spring perch are fixed.
A kind of track takeup of the utility model, also comprise nut, jam plate and the first bolt, the afterbody of described pull bar stretches out second spring perch, and and nut screw connection, nut and second spring perch offset, described jam plate is coated on the tail end of pull bar and nut, and jam plate is fixedly connected with the tail end of pull bar by described first bolt
A kind of track takeup of the utility model, its housing assembly comprises push rod, cylinder body, fuel feeding valve and draining valve, one end of push rod coordinates with spring assembly, the other end of described push rod stretches in the cavity of cylinder body, described fuel feeding valve and draining valve are arranged on cylinder body, and fuel feeding valve is all connected with cavity with draining valve.
A kind of track takeup of the utility model, also comprise dust ring, carrier ring and seal ring, described push rod and cylinder body are supported by carrier ring, and the joint arranged outside of push rod and cylinder body has dust ring, and inner side is provided with seal ring.
A kind of track takeup of the utility model, also comprise the second bolt, the end of described cylinder body is provided with base plate, base plate is provided with clamp, upper clamp has pair of bolts hole and a pair draw-in groove, described fuel feeding valve and draining valve are separately positioned in draw-in groove and are also connected with the cavity of cylinder body through base plate, and described second bolt has two bolts hole of two corresponding upper clamps of difference, and fuel feeding valve and draining valve are fixed on cylinder body by the second bolt.
Compared with prior art, the beneficial effects of the utility model are:
1. a kind of track takeup of the utility model, housing assembly and spring assembly adopt split-type design, and therefore preloading the and buffering capacity design of recoil spring can not be subject to the restriction of push rod, the flexible design degree of recoil spring is high, recoil spring compact conformation, wire diameter is little, good buffer effect.
2. a kind of track takeup of the utility model, be provided with separate fuel feeding valve and draining valve, when housing assembly internal pressure is higher, fuel feeding valve is ignorant of, and only need open draining valve and drain the oil; Fuel feeding valve and draining valve are arranged in the draw-in groove of clamp simultaneously, prevent fuel feeding valve and draining valve from going out, ensure that the safety of device.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of track takeup of the utility model.
Fig. 2 is the structural representation of spring assembly of the present utility model.
Fig. 3 is the structural representation of housing assembly of the present utility model.
Fig. 4 is the enlarged drawing of A in Fig. 3.
Fig. 5 is the birds-eye view of Fig. 3.
Fig. 6 is that the A-A of Fig. 5 is to section-drawing.
In figure:
Spring assembly 1,
Pull bar 1.1,
Spring perch 1.2,
Recoil spring 1.3,
Nut 1.4,
Stop collar 1.5,
Jam plate 1.6,
First bolt 1.7,
Housing assembly 2,
Push rod 2.1,
Cylinder body 2.2,
Cavity 2.2.1,
Upper clamp 2.3,
Base plate 2.4,
Fuel feeding valve 2.5,
Draining valve 2.6,
Dust ring 2.7,
Carrier ring 2.8,
Seal ring 2.9,
Second bolt 2.10.
Detailed description of the invention
See Fig. 1, the utility model relates to a kind of track takeup, and it comprises separate spring assembly 1 and housing assembly 2, and described housing assembly 2 offsets with spring assembly 1.
See Fig. 2, described spring assembly 1 comprises pull bar 1.1, spring perch 1.2, recoil spring 1.3, nut 1.4, stop collar 1.5, jam plate 1.6 and the first bolt 1.7, described spring perch 1.2 has two, two spring perches 1.2 are positioned opposite, stop collar 1.5 is provided with between two spring perches 1.2, stop collar 1.5 is arranged with recoil spring 1.3, the two ends of recoil spring 1.3 offset with two spring perches 1.2 respectively, described pull bar 1.1 bar portion is successively through first spring perch 1.2, stop collar 1.5 and second spring perch 1.2, the head of pull bar 1.1 and first spring perch 1.2 offset, the afterbody of pull bar 1.1 stretches out second spring perch 1.2, and coordinate with nut 1.4, nut 1.4 and second spring perch 1.2 offset, described jam plate 1.6 is coated on the tail end of pull bar 1.1 and nut 1.4, the tail end of jam plate 1.6 with pull bar 1.1 is fixedly connected with by described first bolt 1.7.
See Fig. 3-6, described housing assembly 2 comprises push rod 2.1, cylinder body 2.2, fuel feeding valve 2.5, draining valve 2.6, dust ring 2.7, carrier ring 2.8, seal ring 2.9 and the second bolt 2.10, one end of push rod 2.1 and the head fits of described pull bar 1.1, the other end of described push rod 2.1 stretches in the cavity 2.2.1 of cylinder body 2.2, and supported by carrier ring 2.8, push rod 2.1 has dust ring 2.7 with the joint arranged outside of cylinder body 2.2, inner side is provided with seal ring 2.9, the end of described cylinder body 2.2 is provided with base plate 2.4, base plate 2.4 is provided with clamp 2.3, upper clamp 2.3 has pair of bolts hole and a pair draw-in groove, described fuel feeding valve 2.5 and draining valve 2.6 are separately positioned in draw-in groove and are also connected with the cavity 2.2.1 of cylinder body 2.2 through base plate 2.4, described second bolt 2.10 has two bolts hole of two corresponding upper clamps 2.3 respectively fuel feeding valve 2.5 and draining valve 2.6 to be fixed on cylinder body 2.2.
Principle of work: housing assembly 2 of the present utility model and spring assembly 1 adopt split-type design, the push rod 2.1 of housing assembly 2 coordinates with the pull bar 1.1 of spring assembly 1, during fuel feeding valve 2.5 oiling, push rod 2.1 pushing drawing rod 1.1 makes recoil spring 1.3 compress, now crawler belt is in relaxation state, when draining valve 2.6 is drained the oil, under the effect of recoil spring 1.3, pull bar 1.1 drives push rod 2.1 to return, now crawler belt is in tensioning state, therefore recoil spring 1.3 preload and buffering capacity design can not be subject to push rod 2.1(piston rod) restriction, the flexible design degree of recoil spring 1.3 is high.
The utility model is respectively arranged with fuel feeding valve 2.5 and draining valve 2.6, and oiling and oil extraction can independently be carried out, and ensure that the safety of device.
Claims (6)
1. a track takeup, is characterized in that: described track takeup comprises separate spring assembly (1) and housing assembly (2), one end of described housing assembly (2) and the one end fits of spring assembly (1).
2. a kind of track takeup according to claim 1, it is characterized in that: described spring assembly (1) comprises pull bar (1.1), spring perch (1.2), recoil spring (1.3) and stop collar (1.5), described spring perch (1.2) has two and positioned opposite, stop collar (1.5) is provided with between two spring perches (1.2), stop collar (1.5) is arranged with recoil spring (1.3), the two ends of recoil spring (1.3) offset with two spring perches (1.2) respectively, the bar portion of described pull bar (1.1) is successively through first spring perch (1.2), stop collar (1.5) and second spring perch (1.2), head and first spring perch (1.2) of pull bar (1.1) offset, afterbody and second spring perch (1.2) are fixed.
3. a kind of track takeup according to claim 2, it is characterized in that: described track takeup also comprises nut (1.4), jam plate (1.6) and the first bolt (1.7), the afterbody of described pull bar (1.1) stretches out second spring perch (1.2), and coordinate with nut (1.4), nut (1.4) and second spring perch (1.2) offset, described jam plate (1.6) is coated on the tail end of pull bar (1.1) and nut (1.4), and the tail end of jam plate (1.6) with pull bar (1.1) is fixedly connected with by described first bolt (1.7).
4. a kind of track takeup according to claim 1 and 2, it is characterized in that: described housing assembly (2) comprises push rod (2.1), cylinder body (2.2), fuel feeding valve (2.5) and draining valve (2.6), one end of push rod (2.1) coordinates with spring assembly (1), the other end of described push rod (2.1) stretches in the cavity (2.2.1) of cylinder body (2.2), described fuel feeding valve (2.5) and draining valve (2.6) are arranged on cylinder body (2.2), and fuel feeding valve (2.5) is all connected with cavity (2.2.1) with draining valve (2.6).
5. a kind of track takeup according to claim 4, it is characterized in that: described track takeup also comprises dust ring (2.7), carrier ring (2.8) and seal ring (2.9), described push rod (2.1) and cylinder body (2.2) are supported by carrier ring (2.8), push rod (2.1) has dust ring (2.7) with the joint arranged outside of cylinder body (2.2), and inner side is provided with seal ring (2.9).
6. a kind of track takeup according to claim 4, it is characterized in that: described track takeup also comprises the second bolt (2.10), the end of described cylinder body (2.2) is provided with base plate (2.4), base plate (2.4) is provided with clamp (2.3), upper clamp (2.3) has pair of bolts hole and a pair draw-in groove, described fuel feeding valve (2.5) and draining valve (2.6) are separately positioned in draw-in groove and are also connected with the cavity (2.2.1) of cylinder body (2.2) through base plate (2.4), described second bolt (2.10) has two bolts hole of two corresponding upper clamps (2.3) of difference, fuel feeding valve (2.5) and draining valve (2.6) are fixed on cylinder body (2.2) by the second bolt (2.10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420847967.9U CN204472942U (en) | 2014-12-29 | 2014-12-29 | Track takeup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420847967.9U CN204472942U (en) | 2014-12-29 | 2014-12-29 | Track takeup |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204472942U true CN204472942U (en) | 2015-07-15 |
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ID=53628729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420847967.9U Active CN204472942U (en) | 2014-12-29 | 2014-12-29 | Track takeup |
Country Status (1)
| Country | Link |
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| CN (1) | CN204472942U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105416426A (en) * | 2015-12-03 | 2016-03-23 | 天津市中机雄风机械有限公司 | Tensioning device for excavator crawler belt |
| CN106672101A (en) * | 2017-02-06 | 2017-05-17 | 江阴市长龄机械制造有限公司 | Compact tensioning device |
-
2014
- 2014-12-29 CN CN201420847967.9U patent/CN204472942U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105416426A (en) * | 2015-12-03 | 2016-03-23 | 天津市中机雄风机械有限公司 | Tensioning device for excavator crawler belt |
| CN106672101A (en) * | 2017-02-06 | 2017-05-17 | 江阴市长龄机械制造有限公司 | Compact tensioning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 214422 Yun Ting Road 885, Yun Ting Street, Jiangyin, Wuxi, Jiangsu Patentee after: Jiangsu Changling hydraulic Limited by Share Ltd Address before: 214422 Yun Ting Road 885, Yun Ting Street, Jiangyin, Wuxi, Jiangsu Patentee before: Jiangyin Changling Machinery Manufacturing Co., Ltd. |
|
| CP01 | Change in the name or title of a patent holder |