CN203906470U - Adjusting lever and bulldozer - Google Patents
Adjusting lever and bulldozer Download PDFInfo
- Publication number
- CN203906470U CN203906470U CN201420279079.1U CN201420279079U CN203906470U CN 203906470 U CN203906470 U CN 203906470U CN 201420279079 U CN201420279079 U CN 201420279079U CN 203906470 U CN203906470 U CN 203906470U
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- CN
- China
- Prior art keywords
- hole section
- screw rod
- threaded hole
- screwed pipe
- adjustable lever
- 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 discloses an adjusting lever and a bulldozer. The adjusting lever comprises a threaded rod, a screw tube used for being in screw-thread fit with the threaded rod and a locking device for locking the threaded rod and the screw tube. The screw tube is provided with an insertion port, and the insertion end of the threaded rod can be inserted into the insertion port. A threaded rod mounting hole of the screw tube comprises a non-threaded hole section and a threaded hole section in sequence from the insertion port in the axial direction. The inner diameter of the non-threaded hole section is larger than that of the threaded hole section, so that the threaded rod mounting hole forms a stepped hole. The sidewall, corresponding to the non-threaded hole section, of the screw tube is provided with a gap extending in the axial direction. The locking device is fixed to the gap so that the locking device can tighten the gap to lock the threaded rod and the non-threaded hole section of the screw tube when the threaded rod is inserted into the screw tube in a matched. When the adjusting lever is used, firstly, the adjusting lever is adjusted to a required length in the mode that the threaded rod and the screw tube are screwed together through threads; secondly, the gap in the sidewall of the non-threaded hole section is tightened through the locking device; finally, the threaded rod and the non-threaded hole section of the screw tube are locked.
Description
Technical field
The utility model relates to supporting rod, particularly, relates to a kind of adjustable lever of adjustable in length and comprises the bulldozer of this adjustable lever.
Background technique
The adjustable lever of adjustable in length is of wide application, for example, be applied on bulldozer, to change the operative orientation of bulldozer.
Particularly, as shown in Figure 1, bulldozer comprises the first push rod 11, the second push rod 12, strut 20, oil cylinder 30, the first adjustable lever 41, the second adjustable lever 42 and perching knife 50, and described the first adjustable lever 41, the second adjustable lever 42 are referred to as adjustable lever.One end of described the first push rod 11, one end of the second push rod 12 are hinged with the two ends of described perching knife 50 respectively, and the other end of described the first push rod 11, the other end of the second push rod 12 are all hinged with the vehicle frame of described bulldozer.Described oil cylinder 30 is positioned at the top of described the first push rod 11, and one end of this oil cylinder 30 is connected with described perching knife 30, and the other end is connected with described the first push rod 11.Described strut 20 is positioned at the top of described the second push rod 12, and one end of this strut 20 is connected with described perching knife 50, and the other end is connected with described the second push rod 12.One end of described the first adjustable lever 41, one end of the second adjustable lever 42 are can cylinder hinged with described the first push rod 11, the second push rod 12 respectively, the other end of described the first adjustable lever 41, the other end of the second adjustable lever 42 all with described perching knife 30 ball-joints.Regulate the operating angle of the perching knife 50 of bulldozer by strut 20, oil cylinder 30.As shown in Figure 2, described adjustable lever comprises external thread connector 43 and internal thread connecting piece 44, regulates the length of described adjustable lever by changing external thread connector 43 and the screwing length of internal thread connecting piece 44.In order to prevent coming off of described external thread connector 43 and internal thread connecting piece 44, in prior art, by offering the gap of extending vertically on the sidewall at described internal thread connecting piece 44, on described internal thread connecting piece 44 and in the both sides in described gap, weld relatively respectively the first latch 62a and the second latch 62b, on described the first latch 62a and the second latch 62b, be equipped with the bolt mounting holes for wearing bolt 63a, when described external thread connector 43 and internal thread connecting piece 44 are revolved and after, bolt 63a also screws with nut 63b through the bolt mounting holes of the first latch 62a and the second latch 62b respectively, to eliminate gap between the first latch 62a and the second latch 62b by screw-threaded coupling.
But, the mode of above-mentioned screw-threaded coupling (, the directly screw-threaded coupling with internal thread connecting piece 44 by external thread connector 43) there is following defect: first, because external thread connector 43 and the accuracy of screw machining of internal thread connecting piece 44 are difficult to ensure, cause external thread connector 43 and internal thread connecting piece 44 to revolve and after there will be external thread connector 43 and internal thread connecting piece 44 not to closely cooperate completely; Second, in actual course of working, because thread tolerance is difficult to ensure, so even if can cause the distance between the first latch 62a and the second latch 62b under the active force of bolt to be eliminated completely also not by locked to described external thread connector 43 and internal thread connecting piece 44.
Model utility content
The purpose of this utility model is to provide a kind of adjustable lever that can make external thread connector and internal thread connecting piece screw rear locking, and a kind of bulldozer that comprises this adjustable lever is also provided.
To achieve these goals, the utility model provides a kind of adjustable lever, and this adjustable lever comprises screw rod, for the screwed pipe that coordinates with described screw flight and for by the locking device of described screw rod and the locking of described screwed pipe, described screwed pipe has the insertion port inserting for the insertion end for described screw rod, the screw rod mounting hole of described screwed pipe axially comprises non-threaded hole section and tapped hole section successively from described insertion end opening's edge, the internal diameter of described non-threaded hole section is greater than the internal diameter of described tapped hole section, thereby described screw rod mounting hole is formed as step hole, on the sidewall corresponding to described non-threaded hole section of described screwed pipe, offer the gap of extending vertically, described locking device is fixed on described gap place, can tighten up described gap and lock by locking device described in this non-threaded hole section of described screw rod and described screwed pipe under the state in described screw rod is coupled to described screwed pipe.
Preferably, described screw rod comprises thread section and non-threaded section, and described thread section coordinates with described tapped hole section, when state in described screw rod is coupled to described screwed pipe, tighten up described gap by described locking device, and then lock described non-threaded section and described non-threaded hole section.
Preferably, the inner peripheral surface of described non-threaded hole section is roughened surface.
Preferably, the inner peripheral surface of described non-threaded hole section is provided with the lines for increasing friction coefficient.
Preferably, described locking device comprises described the first latch and the second latch, described the first latch and the second latch are all fixed on the outer circumferential face corresponding to non-threaded hole section of described screwed pipe, and lay respectively at the both sides in described gap and positioned opposite, on described the first latch and the second latch, be equipped with the bolt mounting holes for wearing bolt, tightening up described gap by described screw bolt and nut fastening.
Preferably, the axis of described bolt mounting holes is perpendicular to described gap.
The utility model also provides a kind of bulldozer, comprise that perching knife, vehicle frame and two ends are articulated with respectively the push rod on described perching knife and vehicle frame, it is characterized in that, described bulldozer also comprises described adjustable lever, and the two ends of described adjustable lever are hinged with perching knife and push rod respectively.
When use, in the time need to regulating the length of described adjustable lever according to actual conditions, first revolve by the screw thread of described screw rod and described screwed pipe and described adjustable lever is adjusted to needed length, then tighten up the gap on the sidewall of described non-threaded hole section by described locking device, and then reach the object of the non-threaded hole section locking of described screw rod and described screwed pipe.
Other feature and advantage of the present utility model are described in detail the embodiment part subsequently.
Brief description of the drawings
Accompanying drawing is to be used to provide further understanding of the present utility model, and forms a part for specification, is used from explanation the utility model, but does not form restriction of the present utility model with embodiment one below.In the accompanying drawings:
Fig. 1 is the structural representation of the bulldozing device of bulldozer in prior art.
Fig. 2 is the explosive view of adjustable lever of the prior art.
Fig. 3 is the explosive view of the adjustable lever of the utility model embodiment.
Description of reference numerals
11: the first push rods; 12: the second push rods; 20: strut;
30: oil cylinder; 41: the first adjustable levers; 42: the second adjustable levers;
43: external thread connector; 44: internal thread connecting piece; 50: perching knife;
60: screw rod; 60a: non-threaded section; 60b: thread section;
61: screwed pipe; 61a: tapped hole section; 61b: non-threaded hole section;
62: locking device; 62a: the first latch; 62b: the second latch;
63a: bolt; 63b: nut; 64: bolt mounting holes;
65: screw rod mounting hole.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the utility model, is not limited to the utility model.
In the utility model, in the situation that not doing contrary explanation, the noun of locality of use typically refers to reference to upper and lower, left and right shown in the drawings as " upper and lower, left and right "; " inside and outside " refers to inside and outside with respect to the profile of each parts itself.
Shown in Figure 3, according to an aspect of the present utility model, the utility model provides a kind of adjustable lever, this adjustable lever comprise screw rod 60, for the screwed pipe 61 of described screw rod 60 screw-thread fit and the locking device 62 for described screw rod 60 and described screwed pipe 61 are locked, described screwed pipe 61 has the insertion port inserting for the insertion end for described screw rod 60, the screw rod mounting hole 65 of described screwed pipe 61 axially comprises non-threaded hole section 61b and tapped hole section 61a successively from described insertion end opening's edge, the internal diameter of described non-threaded hole section 61b is greater than the internal diameter of described tapped hole section 61a, thereby described screw rod mounting hole 65 is formed as step hole, on the sidewall corresponding to described non-threaded hole section 61b of described screwed pipe 61, offer the gap of extending vertically, described locking device is fixed on described gap place, can tighten up described gap and lock by locking device described in this non-threaded hole section 61b of described screw rod 60 and described screwed pipe 61 under the state in described screw rod 60 is coupled to described screwed pipe 61.Preferably, described screw rod 60 comprises thread section 60b and non-threaded section of 60a, described thread section 60b coordinates with described tapped hole section 61a, when state in described screw rod 60 is coupled to described screwed pipe 61, tighten up described gap by described locking device, and then lock described non-threaded section of 60a and described non-threaded hole section 61b.
When use, in the time need to regulating the length of described adjustable lever according to actual conditions, first revolve and described adjustable lever is adjusted to needed length by described screw rod 60 and the screw thread of described screwed pipe 61, then tighten up the gap on the sidewall of described non-threaded hole section 61b by described locking device, and then reach the object that described screw rod 60 and described screwed pipe 61 are locked.Locking principle of the present utility model is by locking (being the locking between face and face) between non-threaded section of 60a of described screw rod 60 and the non-threaded hole section 61b of described screwed pipe 61, but not directly by the screw-threaded coupling of described screw rod 60 and screwed pipe 61 (being the locking between screw thread and screw thread) by locking device.
For the ease of the installation of described adjustable lever, one end relative with described insertion end of described screw rod 60 is provided with screw rod hinged seat, and one end relative with described insertion port of described screwed pipe 61 is provided with screwed pipe hinged seat.For example, in the time that described adjustable lever is applied on bulldozer, need to be by hinged to one end of adjustable lever and perching knife, the other end and push rod are hinged.
Wherein, the inner peripheral surface of described non-threaded hole section 61b is roughened surface.Preferably, the inner peripheral surface of described non-threaded hole section 61b is provided with the lines for increasing friction coefficient, for example process annular knurl at the inner peripheral surface of non-threaded hole section 61b, like this, when screw rod 60 and described screwed pipe 61 revolve and after, because the inner peripheral surface of non-threaded hole section 61b has annular knurl, and then increased friction between screw rod 60 and screwed pipe 61 (concrete be friction) between non-threaded section of 60a of screw rod 60 and the inner peripheral surface of the non-threaded hole section 61b of screwed pipe 61, make the locking effect between described screw rod 60 and described screwed pipe 61 better.
Wherein, described locking device comprises described the first latch 62a and the second latch 62b, described the first latch 62a and the second latch 62b are all fixed on the outer circumferential face corresponding to non-threaded hole section 61b of described screwed pipe 61, and lay respectively at the both sides in described gap and positioned opposite, on described the first latch 62a and the second latch 62b, be equipped with the bolt mounting holes 64 for wearing bolt 63a, tightening up described gap by described bolt 63a and nut 63b fastening.When use, first according to actual needs by the length adjustment of described adjustable lever to Len req, then bolt 63a is passed respectively to the bolt mounting holes 64 on the first latch 62a and the second latch 62b, finally use nut 63b fastening, to tighten up described gap, and then realize the locking of described screw rod 60 and described screwed pipe 61 screw threads.
In order better to realize the locking of described screw rod 60 and described screwed pipe 61 screw threads, the axis of described bolt mounting holes 64 is perpendicular to described gap.
According to another aspect of the present utility model, the utility model also provides a kind of bulldozer, it comprises that perching knife, vehicle frame and two ends are articulated with respectively the push rod on described perching knife and vehicle frame, and described bulldozer also comprises described adjustable lever, and the two ends of described adjustable lever are hinged with perching knife and push rod respectively.
Below describe by reference to the accompanying drawings preferred implementation of the present utility model in detail; but; the utility model is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present utility model; can carry out multiple simple variant to the technical solution of the utility model, these simple variant all belong to protection domain of the present utility model.
It should be noted that in addition each the concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode.
In addition, also can carry out combination in any between various mode of execution of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (7)
1. an adjustable lever, this adjustable lever comprises screw rod (60), for the screwed pipe (61) of described screw rod (60) screw-thread fit and for by the locking device (62) of described screw rod (60) and described screwed pipe (61) locking, it is characterized in that, described screwed pipe (61) has the insertion port inserting for the insertion end for described screw rod (60), the screw rod mounting hole (65) of described screwed pipe (61) axially comprises non-threaded hole section (61b) and tapped hole section (61a) successively from described insertion end opening's edge, the internal diameter of described non-threaded hole section (61b) is greater than the internal diameter of described tapped hole section (61a), thereby described screw rod mounting hole (65) is formed as step hole, on the sidewall corresponding to described non-threaded hole section (61b) of described screwed pipe (61), offer the gap of extending vertically, described locking device is fixed on described gap place, can tighten up described gap and lock by locking device described in this non-threaded hole section (61b) of described screw rod (60) and described screwed pipe (61) under the state in described screw rod (60) is coupled to described screwed pipe (61).
2. adjustable lever according to claim 1, it is characterized in that, described screw rod (60) comprises thread section (60b) and non-threaded section (60a), described thread section (60b) coordinates with described tapped hole section (61a), tightens up described gap and then lock described non-threaded section (60a) and described non-threaded hole section (61b) when state in described screw rod (60) is coupled to described screwed pipe (61) by described locking device.
3. adjustable lever according to claim 2, is characterized in that, the inner peripheral surface of described non-threaded hole section (61b) is roughened surface.
4. adjustable lever according to claim 3, is characterized in that, the inner peripheral surface of described non-threaded hole section (61b) is provided with the lines for increasing friction coefficient.
5. adjustable lever according to claim 3, it is characterized in that, described locking device (62) comprises the first latch (62a) and the second latch (62b), described the first latch (62a) and the second latch (62b) are all fixed on the outer circumferential face corresponding to non-threaded hole section (61b) of described screwed pipe (61), and lay respectively at the both sides in described gap and positioned opposite, on described the first latch (62a) and the second latch (62b), be equipped with the bolt mounting holes (64) for wearing bolt (63a), tightening up described gap by described bolt (63a) and nut (63b) fastening.
6. adjustable lever according to claim 5, is characterized in that, the axis of described bolt mounting holes (64) is perpendicular to described gap.
7. a bulldozer, comprise that perching knife, vehicle frame and two ends are articulated with respectively the push rod on described perching knife and vehicle frame, it is characterized in that, described bulldozer also comprises that, according to the adjustable lever described in any one in claim 1-6, the two ends of described adjustable lever are hinged with perching knife and push rod respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420279079.1U CN203906470U (en) | 2014-05-28 | 2014-05-28 | Adjusting lever and bulldozer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420279079.1U CN203906470U (en) | 2014-05-28 | 2014-05-28 | Adjusting lever and bulldozer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203906470U true CN203906470U (en) | 2014-10-29 |
Family
ID=51780752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420279079.1U Expired - Fee Related CN203906470U (en) | 2014-05-28 | 2014-05-28 | Adjusting lever and bulldozer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203906470U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105494118A (en) * | 2016-01-18 | 2016-04-20 | 华南农业大学 | Automatic dung clearing cart and dung clearing method for pig farm |
| CN108202650A (en) * | 2018-01-05 | 2018-06-26 | 安徽久利昌机械有限公司 | It is quickly installed to the handle mechanism of vehicle seat back |
| CN110524956A (en) * | 2019-10-12 | 2019-12-03 | 无锡鸿昌精密机械有限公司 | A kind of self-standing bag bag bottom groove grooving mechanism |
| CN110549680A (en) * | 2019-10-12 | 2019-12-10 | 无锡鸿昌精密机械有限公司 | Circular knife slitting device for square-bottom bag |
| CN111655384A (en) * | 2018-02-09 | 2020-09-11 | 诺信公司 | Liquid adhesive dispensing system |
| CN112682417A (en) * | 2020-12-22 | 2021-04-20 | 宁波建新底盘系统有限公司 | Toe-in adjusting rod assembly and machining process of connecting piece of toe-in adjusting rod assembly |
-
2014
- 2014-05-28 CN CN201420279079.1U patent/CN203906470U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105494118A (en) * | 2016-01-18 | 2016-04-20 | 华南农业大学 | Automatic dung clearing cart and dung clearing method for pig farm |
| CN105494118B (en) * | 2016-01-18 | 2019-02-01 | 华南农业大学 | A kind of pig farm automatic manure-cleaning vehicle and cleaning up excrement method |
| CN108202650A (en) * | 2018-01-05 | 2018-06-26 | 安徽久利昌机械有限公司 | It is quickly installed to the handle mechanism of vehicle seat back |
| CN111655384A (en) * | 2018-02-09 | 2020-09-11 | 诺信公司 | Liquid adhesive dispensing system |
| US11413646B2 (en) | 2018-02-09 | 2022-08-16 | Nordson Corporation | Liquid adhesive dispensing system |
| CN110524956A (en) * | 2019-10-12 | 2019-12-03 | 无锡鸿昌精密机械有限公司 | A kind of self-standing bag bag bottom groove grooving mechanism |
| CN110549680A (en) * | 2019-10-12 | 2019-12-10 | 无锡鸿昌精密机械有限公司 | Circular knife slitting device for square-bottom bag |
| CN112682417A (en) * | 2020-12-22 | 2021-04-20 | 宁波建新底盘系统有限公司 | Toe-in adjusting rod assembly and machining process of connecting piece of toe-in adjusting rod assembly |
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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: 20141029 Termination date: 20160528 |