CN204420221U - A kind of belt tensioner and grease nipple thereof - Google Patents
A kind of belt tensioner and grease nipple thereof Download PDFInfo
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- CN204420221U CN204420221U CN201520053545.9U CN201520053545U CN204420221U CN 204420221 U CN204420221 U CN 204420221U CN 201520053545 U CN201520053545 U CN 201520053545U CN 204420221 U CN204420221 U CN 204420221U
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- grease nipple
- valve core
- belt tensioner
- oil
- nonreturn valve
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Abstract
This application discloses a kind of grease nipple of belt tensioner, comprise grease nipple holder, grease nipple holder inside is disposed with oil injection component, elastic element and nonreturn valve core along its entrance point to its hydraulic fluid port end; The two ends of elastic element respectively elasticity are connected on the interior edge face of oil injection component and the oil inlet end of nonreturn valve core; The oil outlet end of nonreturn valve core can be closed with the inward flange of the hydraulic fluid port of grease nipple holder and abut, and forms overflow ducts between nonreturn valve core and grease nipple holder, and on the wall of grease nipple holder, radial offering is communicated with overflow ducts and extraneous oil drainage hole.When suffered by belt tensioner, external force is larger, oil cylinder internal pressure reaches safety limit, hydraulic oil or lubricant grease act on the oil outlet end of nonreturn valve core, the inward flange of the oil outlet end of nonreturn valve core and the hydraulic fluid port of grease nipple holder is made to depart from closing contact, make hydraulic fluid port and overflow ducts conducting, after fluid enters overflow ducts, discharge grease nipple finally by oil drainage hole, finally discharge belt tensioner.Protect belt tensioner not damage because being subject to larger external force.
Description
Technical field
The utility model relates to technical field of hydraulic pressure, particularly a kind of grease nipple of belt tensioner.Also relate to a kind of belt tensioner comprising this grease nipple.
Background technique
Belt tensioner is widely used in machine driven system, as the tensioner of belt, crawler belt etc., to ensure the stable of transmission.Belt tensioner many employings hydraulic control, by grease nipple to injection liquid force feed or lubricant grease in the oil cylinder of belt tensioner.
The grease nipple of existing belt tensioner adopts double check valve structure, only allows hydraulic oil to enter in the oil cylinder of belt tensioner from the import of grease nipple, does not allow hydraulic oil to reflux.As shown in Figure 1, existing a kind of grease nipple comprises grease nipple holder 03, two steel balls 01 and two springs 02, each steel ball 01 and a spring 02 form check configuration, wherein arrange a check configuration in the inlet of grease nipple, arrange a check configuration at the medium position of grease nipple.
Because grease nipple can only oil-feed, then when the external force suffered by belt tensioner is larger, oil cylinder working-pressure is excessive, and hydraulic oil can not flow out from belt tensioner, can cause damage to belt tensioner.
In sum, how to protect belt tensioner not damage because pressure is excessive, become the technical problem that those skilled in the art are urgently to be resolved hurrily.
Model utility content
In view of this, the purpose of this utility model is the grease nipple providing a kind of belt tensioner, and to make belt tensioner when being subject to larger external force, hydraulic oil or lubricant grease can flow out from grease nipple, carry out unloading pressure protection to belt tensioner.
Another object of the present utility model is to provide a kind of belt tensioner comprising this grease nipple, making belt tensioner when being subject to larger external force, in-oil cylinder oil spill can be gone out, and protection belt tensioner is not damaged.
For achieving the above object, the utility model provides following technological scheme:
A grease nipple for belt tensioner, comprises grease nipple holder, and described grease nipple holder inside is disposed with oil injection component, elastic element and nonreturn valve core along its entrance point to its hydraulic fluid port end;
Described oil injection component stuffing box gland is contained in the entrance point of described grease nipple holder, and for oiling, described oil injection component is communicated with the oil inlet end of described nonreturn valve core;
The two ends of described elastic element respectively elasticity are connected on the interior edge face of described oil injection component and the oil inlet end of described nonreturn valve core;
The oil outlet end of described nonreturn valve core can be closed with the inward flange of the hydraulic fluid port of described grease nipple holder and abut, form overflow ducts between the outer wall of described nonreturn valve core and the internal face of described grease nipple holder, on the wall of described grease nipple holder, radial offering is communicated with described overflow ducts and extraneous oil drainage hole.
Preferably, in the grease nipple of above-mentioned belt tensioner, described oil injection component comprises:
Thread seal is sleeved on the crossover sub of the entrance point of described grease nipple holder, and described crossover sub has interior threaded hole, and the interior edge face of described crossover sub abuts with one end of described elastic element;
Be arranged on the pump nozzle for oiling in the tapped hole of described crossover sub.
Preferably, in the grease nipple of above-mentioned belt tensioner, described oil injection component also comprises and is threaded in the inner and pressure regulation threaded pipe between described elastic element and described crossover sub of described grease nipple holder, and described pressure regulation threaded pipe abuts with one end of described elastic element.
Preferably, in the grease nipple of above-mentioned belt tensioner, described elastic element is butterfly spring, cylindrical spring or volute spring.
Preferably, in the grease nipple of above-mentioned belt tensioner, described nonreturn valve core comprises:
Valve core case, is provided with holding cavity in it;
Steel ball, is arranged in described holding cavity, and can shutoff at the filler opening place of described valve core case;
Compress Spring, is arranged in described holding cavity, and one end is connected on described steel ball;
Valve core head, one end is pressed abd fixed in described holding cavity, and abuts with the other end of described Compress Spring, and described valve core head offers oil outlet, and described valve core head can be closed with the inward flange of described hydraulic fluid port and abut.
Preferably, in the grease nipple of above-mentioned belt tensioner, described valve core head is cone structure, forms conical surface seal with the inward flange of described hydraulic fluid port.
Preferably, in the grease nipple of above-mentioned belt tensioner, the wall of described grease nipple holder is provided with outside thread, is threaded with the oil cylinder of described belt tensioner.
Preferably, in the grease nipple of above-mentioned belt tensioner, the outside thread of described grease nipple holder offers guiding gutter vertically.
Preferably, in the grease nipple of above-mentioned belt tensioner, one end being provided with hydraulic fluid port of described grease nipple holder is tapered end face, forms conical surface seal with the oil cylinder import of described belt tensioner.
The utility model additionally provides a kind of belt tensioner, comprise grease nipple, described grease nipple is the grease nipple described in above any one, and the wall of the installation tapped hole for installing described grease nipple of described belt tensioner offers the oil flow hole corresponding with described oil drainage hole position.
Compared with prior art, the beneficial effects of the utility model are:
The grease nipple of the belt tensioner that the utility model provides comprises grease nipple holder, its inside is provided with nonreturn valve core, oil injection component and elastic element, oil injection component stuffing box gland is contained in the entrance point of grease nipple holder, oil injection component is communicated with the oil inlet end of nonreturn valve core, the two ends of elastic element are respectively on the elasticity oil inlet end that is connected to nonreturn valve core and oil injection component, the oil outlet end of nonreturn valve core and the hydraulic fluid port inward flange of grease nipple holder can closing contact under the effect of elastic element, overflow ducts is formed between the outer wall of nonreturn valve core and the internal face of grease nipple holder, on the wall of grease nipple holder, radial offering is communicated with overflow ducts and extraneous oil drainage hole.During work, grease nipple is arranged in the installation tapped hole of belt tensioner, is communicated with oil cylinder, during oiling, by oil injection component to oiling in grease nipple, the oily oil inlet end by nonreturn valve core, the oil outlet end of nonreturn valve core, the hydraulic fluid port of grease nipple holder enter in the oil cylinder of belt tensioner, when suffered by belt tensioner, external force is larger, oil cylinder internal pressure reaches safety limit, hydraulic oil or lubricant grease act on the oil outlet end of nonreturn valve core, due to nonreturn valve core one-way conduction, therefore, hydraulic oil or lubricant grease can not from nonreturn valve core back through, oil pressure is greater than elastic element and acts on pressure on nonreturn valve core, thus by nonreturn valve core jack-up, the inward flange of the oil outlet end of nonreturn valve core and the hydraulic fluid port of grease nipple holder is made to depart from closing contact, make hydraulic fluid port and overflow ducts conducting, after hydraulic oil or lubricant grease enter overflow ducts, grease nipple is discharged finally by oil drainage hole, final discharge belt tensioner.Visible grease nipple of the present utility model has the function of safety valve, protects belt tensioner and does not damage because being subject to larger external force.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
Fig. 1 is the structural representation of a kind of grease nipple of the prior art;
The cross-sectional schematic of the grease nipple of a kind of belt tensioner that Fig. 2 provides for the utility model embodiment;
The cross-sectional schematic of the nonreturn valve core of a kind of grease nipple that Fig. 3 provides for the utility model embodiment;
The structural representation of a kind of grease nipple that Fig. 4 provides for the utility model embodiment;
The partial schematic diagram of a kind of belt tensioner that Fig. 5 provides for the utility model embodiment.
Wherein, 01 be steel ball, 02 be spring, 03 for grease nipple holder;
1 be grease nipple holder, 101 be oil drainage hole, 102 be outside thread, 103 be hydraulic fluid port, 104 be guiding gutter, 2 be overflow ducts, 3 be oil injection component, 301 be pump nozzle, 302 be crossover sub, 303 be pressure regulation threaded pipe, 4 be elastic element, 5 be nonreturn valve core, 501 be steel ball, 502 be valve core case, 503 be Compress Spring, 504 be valve core head, 505 be holding cavity, 6 for oil flow hole.
Embodiment
Core of the present utility model there is provided a kind of grease nipple of belt tensioner, can be subject to larger external force at belt tensioner, and when belt tensioner interior oil pressure is larger, hydraulic oil or lubricant grease are overflowed by grease nipple, and protection belt tensioner is not damaged.
The utility model additionally provides a kind of belt tensioner comprising this grease nipple, when belt tensioner internal oil pressure is larger, carries out release by grease nipple, and protection belt tensioner is not damaged.
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 2-Fig. 5, the utility model embodiment provides a kind of grease nipple of belt tensioner, hereinafter referred to as grease nipple, comprises grease nipple holder 1, oil injection component 3, elastic element 4 and nonreturn valve core 5; Wherein oil injection component 3, elastic element 4 and nonreturn valve core 5 are successively set on grease nipple holder 1 inside along the entrance point of grease nipple holder 1 to hydraulic fluid port extreme direction; Oil injection component 3 stuffing box gland is contained in the entrance point of grease nipple holder 1, and for oiling, oil injection component 3 is communicated with the oil inlet end of nonreturn valve core 5, and the oil injected from oil injection component 3 enters nonreturn valve core 5; The two ends of elastic element 4 respectively elasticity are connected on the interior edge face of oil injection component 3 and the oil inlet end of nonreturn valve core 5, apply impacting force to nonreturn valve core 5; The oil outlet end of nonreturn valve core 5 can be closed with the inward flange of the hydraulic fluid port 103 of grease nipple holder 1 and abut, under the pressure effect of elastic element 4, the oil outlet end of nonreturn valve core 5 seals with the inward flange of hydraulic fluid port 103 and abuts, overflow ducts 2 is formed between the outer wall of nonreturn valve core 5 and the internal face of grease nipple holder 1, overflow ducts 2 and hydraulic fluid port 103 are intercepted by nonreturn valve core 5, and on the wall of grease nipple holder 1, radial offering is communicated with overflow ducts 2 and extraneous oil drainage hole 101.
Working principle and the working procedure of above-mentioned grease nipple are as follows: be arranged on by grease nipple holder 1 in the installation tapped hole of belt tensioner, grease nipple is communicated with the oil cylinder of belt tensioner, by oil injection component 3 to oiling in grease nipple, oil enters in the oil cylinder of belt tensioner through the hydraulic fluid port 103 of the oil inlet end of nonreturn valve core 5, the oil outlet end of nonreturn valve core 5 and grease nipple holder 1 successively, completes oiling.If the oil pressure in belt tensioner exceedes safety limit, belt tensioner can be damaged.When the oil pressure in belt tensioner reaches safety limit because belt tensioner is subject to larger external force, belt tensioner can be damaged, now, the in-oil cylinder hydraulic oil of belt tensioner or lubricant grease act on the oil outlet end of nonreturn valve core 5, because nonreturn valve core 5 has one-way check effect, only allow oil from oil outlet end out, therefore, the in-oil cylinder hydraulic oil of belt tensioner or lubricant grease do not reflux by nonreturn valve core 5, and the power that hydraulic oil or lubricant grease act on nonreturn valve core 5 oil outlet end is greater than elastic element 4 acts on power on nonreturn valve core 5 oil inlet end, nonreturn valve core 5 is by in-oil cylinder hydraulic oil jack-up, the inward flange of the oil outlet end of nonreturn valve core 5 and the hydraulic fluid port 103 of grease nipple holder 1 is departed from seal, hydraulic fluid port 103 and overflow ducts 2 conducting, in-oil cylinder hydraulic oil or lubricant grease enter overflow ducts by hydraulic fluid port 103, and discharge from oil drainage hole 101, final discharge belt tensioner, unloading pressure protection is carried out to belt tensioner, belt tensioner is not damaged because oil pressure is too high, when in-oil cylinder pressure is less than the pressure that elastic element 4 acts on nonreturn valve core 5 oil inlet end, the oil outlet end of nonreturn valve core 5 is connected to the inward flange of hydraulic fluid port 103 again, play seal action, obstruct hydraulic fluid port 103 is communicated with overflow ducts 2.
As seen from the above; grease nipple in the utility model also has the function of safety valve (relief valve); not only can unidirectional fuel feeding; unloading pressure protection can also be carried out to belt tensioner, thus make belt tensioner stressed excessive time be unlikely damage, only need replenishment again after overflow; do not need to change belt tensioner; reduce maintenance cost, shorten maintenance time, can not the duration be delayed.
As shown in Figure 2, present embodiments provide a kind of concrete oil injection component, it comprises crossover sub 302 and pump nozzle 301: wherein, the center of crossover sub 302 is provided with through tapped hole, and crossover sub 302 thread seal is connected to the entrance point of grease nipple holder 1, the interior edge face of crossover sub 302 abuts with one end of elastic element 4; Pump nozzle 301 is arranged in the tapped hole of crossover sub 302, for oiling.Pump nozzle 301 can selection standard part, as lubricating cup, the effect of crossover sub 302 is to will the pump nozzle 301 of standard piece be adopted to be connected with the entrance point of grease nipple holder 1, object is to reduce manufacture cost, certainly, also crossover sub 302 can not be set, pump nozzle 301 be designed to directly to be connected to the part on grease nipple holder 1 entrance point by thread seal.The two ends of elastic element 4 respectively elasticity are connected on the oil inlet end of crossover sub 302 and nonreturn valve core 5, select the elastic element 4 of suitable elasticity, make the pressure of elastic element 4 be slightly smaller than the oil pressure relief limit value of belt tensioner according to the oil pressure relief limit value of belt tensioner.
Further, as shown in Figure 2, oil injection component 3 also comprises pressure regulation threaded pipe 303, the center of pressure regulation threaded pipe 303 is through hole, pass through for oil, pressure regulation threaded pipe 303 is threaded in grease nipple holder 1 inside and between elastic element 4 and crossover sub 302, pressure regulation threaded pipe 303 abuts with one end of elastic element 4.The object arranging pressure regulation threaded pipe 303 changes the precession degree of depth of pressure regulation threaded pipe 303 in grease nipple holder 1 to pass through, the amount of deformation of adjustable elastic element 4, and then adjustable elastic element 4 acts on the impacting force on the oil inlet end of nonreturn valve core 5, unload oil pressure with what regulate belt tensioner.In as installed process, before installation crossover sub 302 and pump nozzle 301, use inner hexagon spanner first by pressure regulation threaded pipe 303 precession grease nipple holder 1, the precession degree of depth of pressure regulation threaded pipe 303 is roughly regulated by screw-down torque, the cracking pressure of hydraulic fluid port 103 is transferred to the value of needs, do pressure test, after confirming that pressure is tuned to the value of needs, then crossover sub 302 and pump nozzle 301 are installed.
As optimization, the elastic element 4 in the present embodiment is butterfly spring, cylindrical spring or volute spring, is more preferably butterfly spring, and it is large that butterfly spring has elasticity coefficient, and deformation is little, the advantage that pressure change is large, is applicable to being arranged in the less parts in space.
As shown in Figure 3, present embodiments provide a kind of concrete nonreturn valve core 5, it comprises valve core case 502, steel ball 501, Compress Spring 503 and valve core head 504, wherein, valve core case 502 is provided with holding cavity 505, the entrance point of valve core case 502 is provided with filler opening, steel ball 501 and Compress Spring 503 are all arranged in holding cavity 505, and the diameter of steel ball 501 is greater than the filler opening of valve core case 502, can shutoff at filler opening place, one end of Compress Spring 503 is connected on steel ball 501, one end of valve core head 504 is pressed abd fixed in holding cavity 505 by interference fit, and abut with the other end of Compress Spring 503, the center of valve core head 504 offers oil outlet, Compress Spring 503 is extruded, by steel ball 501 shutoff at filler opening place, the outer end of valve core head 504 and the inward flange of hydraulic fluid port 103 are closed and are abutted under the effect of elastic element 4.
During this nonreturn valve core 5 oil-feed, fluid passes through filler opening, steel ball 501 is backed down, Compress Spring 503 is compressed, and fluid enters in holding cavity 505, out from oil outlet finally, and when fluid reverse flow, shutoff is at filler opening place under the effect of Compress Spring 503 and oil liquid pressure for steel ball 501, and fluid cannot reverse circulated, realizes one-way conduction function.
Certainly, valve core head 504 and valve core case 502, except adopting said structure, can also be made of one shaping structure, the oil inlet end of valve core case 502 is arranged to Split type structure by nonreturn valve core 5, after steel ball 501 and Compress Spring 503 being loaded, then carry out combination shutoff.The structure realizing one-way function has a lot, does not enumerate at this.
Further, in the present embodiment, valve core head 504 is cone structure, forms conical surface seal with the inward flange of hydraulic fluid port 103.Certainly, valve core head 504 can also be arranged to spherical structure, form ball face sealing with the inward flange of hydraulic fluid port 103, or valve core head 504 is plane structure, form plane sealing with the inward flange of hydraulic fluid port 103.As long as valve core head 504 can be realized to be contacted with the inward flange of hydraulic fluid port 103 and seal.
As shown in Figure 4, in the present embodiment, the wall of grease nipple holder 1 is provided with outside thread 102, connects with the installation tapped hole on belt tensioner, easy disassembly.Certainly, interference fit also can be adopted to install, also grease nipple holder 1 and belt tensioner can be made of one.
As shown in Figure 5, when grease nipple holder 1 connects with the installation tapped hole on belt tensioner, conveniently in-oil cylinder for belt tensioner oil is released, the outside thread 102 of grease nipple holder 1 offers guiding gutter 104 vertically.Owing to sealing for abutting between the hydraulic fluid port end of grease nipple holder 1 and the oil cylinder import of belt tensioner, when draining the oil, to inner rotary grease nipple holder 1, the hydraulic fluid port end of grease nipple holder 1 is contacted with departing between oil cylinder import to seal, and in-oil cylinder oil can flow out belt tensioner by the guiding gutter 104 on outside thread 102.
As shown in Fig. 2, Fig. 4 and Fig. 5, one end being provided with hydraulic fluid port 103 of grease nipple holder 1 is tapered end face, is conical surface seal with the oil cylinder import of belt tensioner, certainly, also can be ball face sealing or plane sealing.
The utility model embodiment still provides a kind of belt tensioner, comprise grease nipple, wherein, the grease nipple of grease nipple described by above whole embodiment, the wall of the installation tapped hole for installing grease nipple of belt tensioner offers the oil flow hole 6 corresponding with oil drainage hole 101 position, from the oil cylinder of belt tensioner release flow out oil successively after hydraulic fluid port 103, overflow ducts 2, oil drainage hole 101, finally from oil flow hole 6 discharged to the external world, complete overflow release.
This belt tensioner is owing to have employed the grease nipple in the application; this grease nipple with the function of relief valve, therefore, when belt tensioner because be subject to larger external force make its internal oil pressure reach safety limit time; oil in belt tensioner is discharged by grease nipple, thus protects belt tensioner and be not damaged.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. the grease nipple of a belt tensioner, comprise grease nipple holder (1), it is characterized in that, described grease nipple holder (1) inside is disposed with oil injection component (3), elastic element (4) and nonreturn valve core (5) along its entrance point to its hydraulic fluid port end;
Described oil injection component (3) stuffing box gland is contained in the entrance point of described grease nipple holder (1), and for oiling, described oil injection component (3) is communicated with the oil inlet end of described nonreturn valve core (5);
The two ends of described elastic element (4) respectively elasticity are connected on the interior edge face of described oil injection component (3) and the oil inlet end of described nonreturn valve core (5);
The oil outlet end of described nonreturn valve core (5) can be closed with the inward flange of the hydraulic fluid port (103) of described grease nipple holder (1) and abut, form overflow ducts (2) between the outer wall of described nonreturn valve core (5) and the internal face of described grease nipple holder (1), on the wall of described grease nipple holder (1), radial direction offers and is communicated with described overflow ducts (2) and extraneous oil drainage hole (101).
2. the grease nipple of belt tensioner according to claim 1, is characterized in that, described oil injection component (3) comprising:
Thread seal is sleeved on the crossover sub (302) of the entrance point of described grease nipple holder (1), described crossover sub (302) has tapped hole, and the interior edge face of described crossover sub (302) abuts with one end of described elastic element (4);
Be arranged on the pump nozzle for oiling (301) in the tapped hole of described crossover sub (302).
3. the grease nipple of belt tensioner according to claim 2, it is characterized in that, described oil injection component (3) also comprises and is threaded in the inner and pressure regulation threaded pipe (303) be positioned between described elastic element (4) and described crossover sub (302) of described grease nipple holder (1), and described pressure regulation threaded pipe (303) abuts with one end of described elastic element (4).
4. the grease nipple of belt tensioner according to claim 1, is characterized in that, described elastic element (4) is butterfly spring, cylindrical spring or volute spring.
5. the grease nipple of belt tensioner according to claim 1, is characterized in that, described nonreturn valve core (5) comprising:
Valve core case (502), is provided with holding cavity (505) in it;
Steel ball (501), is arranged in described holding cavity (505), and can shutoff at the filler opening place of described valve core case (502);
Compress Spring (503), is arranged in described holding cavity (505), and one end is connected on described steel ball (501);
Valve core head (504), one end is pressed abd fixed in described holding cavity (505), and abut with the other end of described Compress Spring (503), (504) offer oil outlet to described valve core head, and described valve core head (504) can be closed with the inward flange of described hydraulic fluid port (103) and abut.
6. the grease nipple of belt tensioner according to claim 5, is characterized in that, described valve core head (504) is cone structure, forms conical surface seal with the inward flange of described hydraulic fluid port (103).
7. the grease nipple of belt tensioner according to claim 1, is characterized in that, the wall of described grease nipple holder (1) is provided with outside thread (102), is threaded with the oil cylinder of described belt tensioner.
8. the grease nipple of belt tensioner according to claim 7, is characterized in that, the outside thread (102) of described grease nipple holder (1) offers guiding gutter (104) vertically.
9. the grease nipple of belt tensioner according to claim 1, is characterized in that, one end being provided with hydraulic fluid port (103) of described grease nipple holder (1) is tapered end face, forms conical surface seal with the oil cylinder import of described belt tensioner.
10. a belt tensioner, comprise grease nipple, it is characterized in that, described grease nipple is the grease nipple described in any one of claim 1-9, and the wall of the installation tapped hole for installing described grease nipple of described belt tensioner offers the oil flow hole (6) corresponding with described oil drainage hole (101) position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520053545.9U CN204420221U (en) | 2015-01-26 | 2015-01-26 | A kind of belt tensioner and grease nipple thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520053545.9U CN204420221U (en) | 2015-01-26 | 2015-01-26 | A kind of belt tensioner and grease nipple thereof |
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| Publication Number | Publication Date |
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| CN204420221U true CN204420221U (en) | 2015-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520053545.9U Active CN204420221U (en) | 2015-01-26 | 2015-01-26 | A kind of belt tensioner and grease nipple thereof |
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| CN (1) | CN204420221U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221510A (en) * | 2015-10-31 | 2016-01-06 | 山东科技大学 | A kind of Multipurpose hydraulic valve and application thereof |
| CN108036084A (en) * | 2017-11-08 | 2018-05-15 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of split type ball check valve |
| CN108591794A (en) * | 2018-05-03 | 2018-09-28 | 浙江高领新能源科技有限公司 | The quick oiling tooling of bearing |
| CN108626332A (en) * | 2017-03-21 | 2018-10-09 | 株式会社椿本链条 | Tensioning apparatus |
| CN108799426A (en) * | 2017-04-28 | 2018-11-13 | 株式会社椿本链条 | Chain stretching device |
| CN114017655A (en) * | 2021-11-04 | 2022-02-08 | 丰顺县泰雅达实业有限公司 | Automatic oiling device |
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2015
- 2015-01-26 CN CN201520053545.9U patent/CN204420221U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105221510A (en) * | 2015-10-31 | 2016-01-06 | 山东科技大学 | A kind of Multipurpose hydraulic valve and application thereof |
| CN105221510B (en) * | 2015-10-31 | 2017-05-10 | 山东科技大学 | Multipurpose hydraulic valve and application thereof |
| CN108626332A (en) * | 2017-03-21 | 2018-10-09 | 株式会社椿本链条 | Tensioning apparatus |
| CN108626332B (en) * | 2017-03-21 | 2021-01-08 | 株式会社椿本链条 | Tension device |
| CN108799426A (en) * | 2017-04-28 | 2018-11-13 | 株式会社椿本链条 | Chain stretching device |
| CN108799426B (en) * | 2017-04-28 | 2021-02-23 | 株式会社椿本链条 | Chain tensioning device |
| CN108036084A (en) * | 2017-11-08 | 2018-05-15 | 中国航空工业集团公司金城南京机电液压工程研究中心 | A kind of split type ball check valve |
| CN108591794A (en) * | 2018-05-03 | 2018-09-28 | 浙江高领新能源科技有限公司 | The quick oiling tooling of bearing |
| CN108591794B (en) * | 2018-05-03 | 2023-08-22 | 浙江高领新能源科技有限公司 | Quick oiling frock of bearing |
| CN114017655A (en) * | 2021-11-04 | 2022-02-08 | 丰顺县泰雅达实业有限公司 | Automatic oiling device |
| CN114017655B (en) * | 2021-11-04 | 2023-01-10 | 丰顺县泰雅达实业有限公司 | Automatic oiling device |
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Address after: 102249 Beijing ChangPing Railway Station, west of Changping District, 500 meters Patentee after: Beijing CRRC Heavy Industry Mechanics Co., Ltd. Address before: 102249 Beijing ChangPing Railway Station, west of Changping District, 500 meters Patentee before: Beijing CSR Times Heavy Industry Machinery Co., Ltd. |