CN202865900U - Continuous wall grab bucket and hydraulic system of hose reel thereof - Google Patents
Continuous wall grab bucket and hydraulic system of hose reel thereof Download PDFInfo
- Publication number
- CN202865900U CN202865900U CN2012204330331U CN201220433033U CN202865900U CN 202865900 U CN202865900 U CN 202865900U CN 2012204330331 U CN2012204330331 U CN 2012204330331U CN 201220433033 U CN201220433033 U CN 201220433033U CN 202865900 U CN202865900 U CN 202865900U
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Abstract
The utility model discloses a hydraulic system of a hose reel. The hydraulic system of the hose reel comprises an oil pump, a two-position three-way reversing valve, a first oil conveying pipe, a second oil conveying pipe, a first hose reel motor, a second hose reel motor, a third oil conveying pipe and a proportional overflow valve. The oil pump is communicated with an oil tank. The two-position three-way reversing valve is communicated with the oil pump. The first oil conveying pipe is communicated with the two-position three-way reversing valve and the oil tank. The second oil conveying pipe is communicated with the two-position three-way reversing valve. The first hose reel motor is provided with a first oil conveying port and a second oil conveying port, the second hose reel motor is provided with a third oil conveying port and a fourth oil conveying port, the second oil conveying pipe is communicated with the first oil conveying port and the third oil conveying port, and the third oil conveying pipe is communicated with the second oil conveying port and the fourth oil conveying port. The third oil conveying pipe is communicated with the oil tank. The proportional overflow valve is communicated with all the four oil conveying ports. Thus, the problems that tension offered by the hose reel is fixed and can not be adjusted, so that the abrasion of a hose is serious and service life is shortened can be effectively solved. The utility model further discloses a continuous wall grab bucket with the hydraulic system.
Description
Technical field
The utility model relates to the continuous wall grab technical field, more particularly, relates to a kind of hydraulic system of booster reel of continuous wall grab, and the utility model has also related to a kind of continuous wall grab with hydraulic system of above-mentioned booster reel.
Background technology
Continuous wall grab is a kind of engineering mechanical device by wire rope suspensioning grab bucket body enforcement grooving work as the important machinery of continuous wall trench underground construction, and along with increasing of engineering construction project, the application of continuous wall grab is more and more.
In the course of work of continuous wall grab, its grab bucket body need to rise or descend to operate, wherein grab bucket and be provided with the oil cylinder of promoting mainly that to finish out bucket and close the bucket action on the body, the power of promoting mainly oil cylinder is mainly provided by hydraulic system, hydraulic pump output hydraulic pressure oil flows to the control main valve, have the hydraulic oil of direction and pressure by the control main valve to promoting mainly oil cylinder input, and then make and promote mainly oil cylinder and finish work in every.The control main valve provides power and flow by two long sebific ducts to promoting mainly oil cylinder.So an end of two sebific ducts also should move up and down along with the grab bucket body.
In the structure design of continuous wall grab, shown in Fig. 1-2, be provided with two booster reels 01, two sebific ducts are separately fixed on two booster reels 01 by hose coupling valve piece 06, one end of sebific duct is connected with swivel coupling 02, the other end with promote mainly oil cylinder and be connected along with the grab bucket body rises or descends.Wherein booster reel is respectively by two reel motors, and namely the first booster reel motor 03 and the second booster reel motor 05 drive by gear reduction box 04.
When the grab bucket body action, booster reel 01 need to provide tension force to promote sebific duct and to tighten up sebific duct, prevent that sebific duct from gliding and relaxing, wherein the first component of the tension force of booster reel does not glide it for the gravity of balance rubber hose, and the second component is used for tightening up sebific duct makes it lax.As shown in Figure 3, the system that controls in the prior art the rotation of two booster reels mainly is hydraulic system, it comprises oil pump, the three-position four-way valve 07 that is communicated with the oil-out of oil pump by petroleum pipeline, the the first oil pipe a ' that all is communicated with three-position four-way valve 07 and the second oil pipe b ', wherein the first booster reel motor 03 has the first hydraulic fluid port and the second hydraulic fluid port, the second booster reel motor 05 has the 3rd hydraulic fluid port and the 4th hydraulic fluid port, and the first oil pipe a ' is communicated with the first hydraulic fluid port of the first booster reel motor 03 and the 3rd hydraulic fluid port of the second booster reel motor 05 simultaneously, the second oil pipe b ' is communicated with the second hydraulic fluid port of the first booster reel motor 03 and the 4th hydraulic fluid port of the second booster reel motor 05 simultaneously, also comprise the single-stage overflow valve 08 that all is communicated with the first oil pipe a ' and the second oil pipe b ', wherein the tension force that provides of booster reel is set by single-stage overflow valve 08, and the force value of single-stage overflow valve 08 can not be regulated automatically, so the tension force that booster reel provides under same operating is also fixed.Yet, the grab bucket body is in the process of work, the degree of depth that it is in is different, when the degree of depth that is in of grab bucket body hour, the first component of the gravity of the balance rubber hose of the tension force of booster reel is less at this moment, and the second component that sebific duct is tightened up is larger, so the tension force of sebific duct is larger, so that the sebific duct serious wear, shortened the application life of sebific duct.
In sum, how a kind of hydraulic system of booster reel of continuous wall grab is provided, thereby makes it effectively solve fixing can not the adjusting of tension force that booster reel provides, cause the sebific duct serious wear, the problem that shorten application life is present those skilled in the art's urgent problem.
The utility model content
In view of this, the utility model discloses a kind of hydraulic system of booster reel of continuous wall grab, thereby make it effectively solve fixing can not the adjusting of tension force that booster reel provides, cause the sebific duct serious wear, the problem that shorten application life the invention also discloses a kind of continuous wall grab with hydraulic system of above-mentioned booster reel.
In order to reach above-mentioned first purpose, the utility model provides following technical scheme:
A kind of hydraulic system of booster reel of continuous wall grab, described hydraulic system is communicated with fuel tank, comprising:
The oil pump that is communicated with described fuel tank;
The two position three way directional control valve that is used for control running of hydraulic power oil direction that is connected with described oil pump and the first petroleum pipeline that is connected with described two position three way directional control valve, described the first petroleum pipeline is communicated with described fuel tank;
The second petroleum pipeline that is connected with described two position three way directional control valve, also comprise the first booster reel motor and the second booster reel motor, described the first booster reel motor has the first oil transportation mouth and the second oil transportation mouth, described the second booster reel motor has the 3rd oil transportation mouth and the 4th oil transportation mouth, described the second petroleum pipeline is connected with described the first oil transportation mouth and the 3rd oil transportation mouth, also comprise the 3rd petroleum pipeline that is connected with described the second oil transportation mouth and the 4th oil transportation mouth, described the 3rd petroleum pipeline is connected with described fuel tank;
Also comprise the proportional pressure control valve that all is communicated with described the first oil transportation mouth, the second oil transportation mouth, the 3rd oil transportation mouth and the 4th oil transportation mouth.
Preferably, also comprise and all be connected with described fuel tank and oil pump and be arranged at oil filter between described fuel tank and the oil pump.
Preferably, also comprise all be connected with described oil pump and two position three way directional control valve and be arranged at tubular type one way valve between described oil pump and the two position three way directional control valve.
Preferably, also comprise the loop safety valve that all is connected with described the second petroleum pipeline and the 3rd petroleum pipeline.
Preferably, also be communicated with pressure switch between described proportional pressure control valve and the two position three way directional control valve.
Preferably, also comprise the loop counterbalance valve, described loop counterbalance valve is communicated on the 3rd petroleum pipeline between described fuel tank and described the second oil transportation mouth and the 4th oil transportation mouth.
Preferably, also comprise the repairing one way valve that all is communicated with described fuel tank, the first booster reel motor and the second booster reel motor.
Preferably, also comprise with the first ball valve of described the first booster reel motor series winding, with the second ball valve of described the second booster reel motor series winding and with the 3rd ball valve of described proportional pressure control valve series winding.
A kind of continuous wall grab comprises the hydraulic system such as each described booster reel in above-mentioned.
The hydraulic system of the booster reel of the continuous wall grab that the utility model provides, this hydraulic system is communicated with fuel tank, comprises the oil pump that is communicated with fuel tank; The two position three way directional control valve that is used for control running of hydraulic power oil direction that is connected with oil pump and the first petroleum pipeline that is connected with described two position three way directional control valve, wherein the first petroleum pipeline is communicated with fuel tank; The second petroleum pipeline that is connected with two position three way directional control valve, also comprise the first booster reel motor and the second booster reel motor, the first booster reel motor has the first oil transportation mouth and the second oil transportation mouth, the second booster reel motor has the 3rd oil transportation mouth and the 4th oil transportation mouth, the second petroleum pipeline is connected with the first oil transportation mouth and the 3rd oil transportation mouth, also comprise the 3rd petroleum pipeline that is connected with the second oil transportation mouth and the 4th oil transportation mouth, the 3rd petroleum pipeline is connected with fuel tank, also comprises and the first oil transportation mouth, the second oil transportation mouth, the proportional pressure control valve that the 3rd oil transportation mouth and the 4th oil transportation mouth all are communicated with.
When using the hydraulic system of booster reel of the continuous wall grab that the utility model provides, oil pump liquid draw force feed at first, hydraulic oil enters the first booster reel motor and the second booster reel motor through oil pump and two position three way directional control valve, then flow back to fuel tank, wherein the first oil transportation mouth of proportional pressure control valve and the first booster reel motor and the second oil transportation mouth, the 3rd oil transportation mouth and the 4th oil transportation mouth of the second booster reel motor all are communicated with, it can control the pressure of this hydraulic system, and then control the tension force that the first booster reel motor and the second booster reel motor driving booster reel provide, when the degree of depth of grab bucket body when larger, need the first booster reel motor and the second booster reel motor driving booster reel that larger tension force is provided, this Time Controller is regulated the larger force value of proportional pressure control valve automatically by electric current, when the degree of depth of grab bucket body hour, need the first booster reel motor and the second booster reel motor driving booster reel that less tension force is provided, this Time Controller is regulated the less force value of proportional pressure control valve automatically by electric current, so can be according to the depth adjustment first booster reel motor of grab bucket body and the tension force that the second booster reel motor driving booster reel provides, so that the power that sebific duct tightens up can be not excessive, reduce the wearing and tearing of sebific duct, prolonged the application life of sebific duct.
In order to reach above-mentioned second purpose, the utility model also provides a kind of continuous wall grab, and this continuous wall grab comprises the hydraulic system of above-mentioned any booster reel.Because the hydraulic system of above-mentioned booster reel has above-mentioned technique effect, the continuous wall grab with hydraulic system of this booster reel also should have corresponding technique effect.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art, apparently, accompanying drawing in the following describes only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The front view that the booster reel that Fig. 1 provides for the utility model assembles;
The lateral view that the booster reel that Fig. 2 provides for the utility model assembles;
Fig. 3 is the structural representation of hydraulic system of the booster reel of continuous wall grab of the prior art;
The structural representation of the hydraulic system of the booster reel of the continuous wall grab that Fig. 4 provides for the utility model.
Wherein, among Fig. 1-Fig. 4:
01-booster reel, 02-swivel coupling, 03-the first booster reel motor, 04-gear reduction box, 05-the second booster reel motor, 06-hose coupling valve piece, 07-three-position four-way valve, 08-single-stage overflow valve, a '-first oil pipe, b '-second oil pipe;
The 1-oil filter, the 2-oil pump, 3-tubular type one way valve, the 4-two position three way directional control valve, the 5-pressure switch, 6-the first booster reel motor, 7-the first ball valve, 8-the second ball valve, 9-the second booster reel motor, the 10-proportional pressure control valve, 11-the 3rd ball valve, 12-loop safety valve, 13-loop counterbalance valve, 14-repairing one way valve, a-the second petroleum pipeline, b-the 3rd petroleum pipeline, c-the first petroleum pipeline, A-the first oil transportation mouth, B-the second oil transportation mouth, A1-the 3rd oil transportation mouth, B1-the 4th oil transportation mouth.
The specific embodiment
The utility model embodiment discloses a kind of hydraulic system of booster reel of continuous wall grab, thereby make it effectively solve fixing can not the adjusting of tension force that booster reel provides, cause the sebific duct serious wear, the problem that shorten application life the invention also discloses a kind of continuous wall grab with hydraulic system of above-mentioned booster reel.
Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only 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 obtains under the creative work prerequisite, all belong to the scope of the utility model protection.
See also Fig. 4, the hydraulic system of the booster reel of the continuous wall grab that the utility model embodiment provides, this hydraulic system is communicated with fuel tank, comprises the oil pump 2 that is communicated with fuel tank; The two position three way directional control valve 4 that is used for control running of hydraulic power oil direction that is connected with oil pump 2 and the first petroleum pipeline c that is connected with described two position three way directional control valve 4, wherein the first petroleum pipeline c is communicated with fuel tank; The the second petroleum pipeline a that is connected with two position three way directional control valve 4, also comprise the first booster reel motor 6 and the second booster reel motor 9, the first booster reel motor 6 has the first oil transportation mouth A and the second oil transportation mouth B, the second booster reel motor 9 has the 3rd oil transportation mouth A1 and the 4th oil transportation mouth B1, the second petroleum pipeline a is connected with the first oil transportation mouth A and the 3rd oil transportation mouth A1, also comprise the 3rd petroleum pipeline b that is connected with the second oil transportation mouth B and the 4th oil transportation mouth B1, the 3rd petroleum pipeline b is connected with fuel tank, also comprises and the first oil transportation mouth A, the second oil transportation mouth B, the proportional pressure control valve 10 that the 3rd oil transportation mouth A1 and the 4th oil transportation mouth B1 all are communicated with.
When using the hydraulic system of booster reel of the continuous wall grab that the utility model embodiment provides, oil pump 2 liquid draw force feeds at first, hydraulic oil enters the first booster reel motor 6 and the second booster reel motor 9 through oil pump 2 and two position three way directional control valve 4, then flow back to fuel tank, wherein the first oil transportation mouth A of proportional pressure control valve 10 and the first booster reel motor 6 and the second oil transportation mouth B, the 3rd oil transportation mouth A1 of the second booster reel motor 9 and the 4th oil transportation mouth B1 all are communicated with, it can control the pressure of this hydraulic system, and then control the first booster reel motor 6 and the second booster reel motor 9 and drive booster reels tension force is provided, when the degree of depth of grab bucket body when larger, need the first booster reel motor 6 and the second booster reel motor 9 to drive booster reel larger tension force is provided, controller is regulated proportional pressure control valve 10 to the elevated pressures value by electric current, thereby improve whole hydraulic system pressure, when the degree of depth of grab bucket body hour, need the first booster reel motor 6 and the second booster reel motor 9 to drive booster reel less tension force is provided, this Time Controller is regulated proportional pressure control valve 10 to the lower pressure value by electric current, thereby reduce whole hydraulic system pressure, so can be according to the pressure of depth adjustment proportional pressure control valve of grab bucket body, and then regulate the tension force that the first booster reel motor 6 and the second booster reel motor 9 drive booster reels, so that the power that sebific duct tightens up can be not excessive, reduce the wearing and tearing of sebific duct, prolonged the application life of sebific duct.
When booster reel carries out the rolling of sebific duct, hydraulic oil enters the first booster reel motor 6 and the second booster reel motor 9 through oil pump 2 and two position three way directional control valve 4 from the first oil transportation mouth A and the 3rd oil transportation mouth A1, then flow out from the second oil transportation mouth B and the 4th oil transportation mouth B1, and flow back to fuel tank.In this process, can utilize controller to regulate the force value of proportional pressure control valve 10 by electric current, limit the pressure of this hydraulic circuit, namely limit the tension force that booster reel promotes sebific duct, the degree of depth of grab bucket body improves the pressure of this hydraulic circuit when darker, and the degree of depth of grab bucket body hour, reduce the pressure of this hydraulic circuit, to reduce the wearing and tearing of sebific duct.
When booster reel carried out unreeling of sebific duct, the pressure of grab bucket body dragged sebific duct and descends, and this moment, booster reel still need provide tension force to tighten up sebific duct, made its lax and rapidly downslide.Hydraulic oil enters the first oil transportation mouth A and the 3rd oil transportation mouth A1 through oil pump 2 from two position three way directional control valve 4, this moment, the first booster reel motor 6 and the second booster reel motor 9 were in the state of building the pressure, until the pressure of the first oil transportation mouth A and the 3rd oil transportation mouth A1 is when being greater than or equal to the setting value of proportional pressure control valve 10, proportional pressure control valve 10 overflows, part hydraulic oil passing ratio overflow valve 10 flows back to fuel tank, another part hydraulic oil passing ratio overflow valve 10 flows into the second oil transportation mouth B and the 4th oil transportation mouth B1, flow out and flow to proportional pressure control valve 10 from the first oil transportation mouth A and the 3rd oil transportation mouth A1 again, form a closed-loop path, glide rapidly until the grab bucket body stops to drive sebific duct.
Wherein, follow hydraulic oil and enter together this hydraulic system in order to prevent impurity in the fuel tank, block the hydraulic oil flow cycle, can arrange and all be connected with fuel tank and oil pump 2 and be arranged at oil filter 1 between fuel tank and the oil pump 2, with the impurity in the filtered fluid force feed, prevent that it from entering hydraulic system.
In addition; in order to prevent that hydraulic oil from flowing out the rear situation that backflow reverse impact oil pump 2 occurs from oil pump 2 and occuring; can also arrange all that be connected with oil pump 2 and two position three way directional control valve 4 and be arranged at tubular type one way valve 3 between oil pump 2 and the two position three way directional control valve 4; tubular type one way valve 3 can limit hydraulic oil can flow-reversing impingement oil pump 2, has protected the safety of oil pump 2.
In order to guarantee the safety of this hydraulic system, the loop safety valve 12 that all is connected with the second petroleum pipeline a and the 3rd petroleum pipeline b can also be set, loop safety valve 12 has the effect of the maximum pressure that limits this hydraulic system hydraulic circuit, when the pressure of the hydraulic circuit of this hydraulic system surpasses the pressure that loop safety valve 12 sets, loop safety valve 12 can be opened pressure release voluntarily, to guarantee that hydraulic system can work, prevent accident.
Wherein, in order to obtain in real time the force value of the hydraulic circuit of this hydraulic system, can also between proportional pressure control valve 10 and two position three way directional control valve 4, be communicated with pressure switch 5, utilize pressure switch to measure the pressure of the hydraulic circuit of this hydraulic system, and be presented at by transmitting device on the display of operating room, so that the operator debugs the force value of this hydraulic system according to the pressure information of the hydraulic circuit of this hydraulic system.
In order to increase the stability of this hydraulic system, can also loop counterbalance valve 13 be set at the 3rd petroleum pipeline b that is communicated between fuel tank and the second oil transportation mouth B and the 4th oil transportation mouth B1, pressure instability in this hydraulic system regularly, loop counterbalance valve 13 can be regulated the pressure of this hydraulic system, and then makes the pressure of this hydraulic system be in certain limit.
In addition, in the situation that sebific duct glides rapidly, in order to prevent the hydraulic oil quantity not sufficient in this hydraulic system, the repairing one way valve 14 that all is communicated with fuel tank the first booster reel motor 6 and the second booster reel motor 9 can also be set, so that in this hydraulic system, replenish hydraulic oil.
In order further to optimize technique scheme, for the ease of control hydraulic oil whether by the first booster reel motor 6, the second booster reel motor 9 and proportional pressure control valve 10, can also arrange with the first ball valve 7 of the first booster reel motor 6 series windings, with the second ball valve 8 of the second booster reel motor 9 series windings and with the 3rd ball valve 11 of proportional pressure control valve 10 series windings.In debug process, close the first ball valve 7, the second ball valve 8 and the 3rd ball valve 11, and two position three way directional control valve 4 outage, pressure that can regulating loop safety valve 12.
Based on the hydraulic system of the booster reel of the continuous wall grab that provides in above-described embodiment, the utility model also provides a kind of continuous wall grab, and this continuous wall grab comprises the hydraulic system of any one booster reel in above-described embodiment.Because this continuous wall grab has adopted the hydraulic system of the booster reel in above-described embodiment, so the beneficial effect of this continuous wall grab please refer to above-described embodiment.
Each embodiment adopts the mode of going forward one by one to describe in this manual, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and General Principle as defined herein can in the situation that does not break away from spirit or scope of the present utility model, realize in other embodiments.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (9)
1. the hydraulic system of the booster reel of a continuous wall grab, described hydraulic system is communicated with fuel tank, it is characterized in that, comprising:
The oil pump (2) that is communicated with described fuel tank;
The two position three way directional control valve (4) that is used for control running of hydraulic power oil direction that is connected with described oil pump (2) and the first petroleum pipeline (c) that is connected with described two position three way directional control valve (4), described the first petroleum pipeline (c) is communicated with described fuel tank;
The second petroleum pipeline (a) that is connected with described two position three way directional control valve (4), also comprise the first booster reel motor (6) and the second booster reel motor (9), described the first booster reel motor (6) has the first oil transportation mouth (A) and the second oil transportation mouth (B), described the second booster reel motor (9) has the 3rd oil transportation mouth (A1) and the 4th oil transportation mouth (B1), described the second petroleum pipeline (a) is connected with described the first oil transportation mouth (A) and the 3rd oil transportation mouth (A1), also comprise the 3rd petroleum pipeline (b) that is connected with described the second oil transportation mouth (B) and the 4th oil transportation mouth (B1), described the 3rd petroleum pipeline (b) is connected with described fuel tank;
Also comprise the proportional pressure control valve (10) that all is communicated with described the first oil transportation mouth (A), the second oil transportation mouth (B), the 3rd oil transportation mouth (A1) and the 4th oil transportation mouth (B1).
2. the hydraulic system of the booster reel of continuous wall grab according to claim 1 is characterized in that, also comprises all being connected with described fuel tank and oil pump (2) and being arranged at oil filter (1) between described fuel tank and the oil pump (2).
3. the hydraulic system of the booster reel of continuous wall grab according to claim 1, it is characterized in that, also comprise all be connected with described oil pump (2) and two position three way directional control valve (4) and be arranged at tubular type one way valve (3) between described oil pump (2) and the two position three way directional control valve (4).
4. the hydraulic system of the booster reel of continuous wall grab according to claim 1 is characterized in that, also comprises the loop safety valve (12) that all is connected with described the second petroleum pipeline (a) and the 3rd petroleum pipeline (b).
5. the hydraulic system of the booster reel of continuous wall grab according to claim 1 is characterized in that, also is communicated with pressure switch (5) between described proportional pressure control valve (10) and the two position three way directional control valve (4).
6. the hydraulic system of the booster reel of continuous wall grab according to claim 1, it is characterized in that, also comprise loop counterbalance valve (13), described loop counterbalance valve (13) is communicated on the 3rd petroleum pipeline (b) between described fuel tank and described the second oil transportation mouth (B) and the 4th oil transportation mouth (B1).
7. the hydraulic system of the booster reel of continuous wall grab according to claim 1 is characterized in that, also comprises the repairing one way valve (14) that all is communicated with described fuel tank, the first booster reel motor (6) and the second booster reel motor (9).
8. the hydraulic system of the booster reel of continuous wall grab according to claim 1, it is characterized in that, also comprise with first ball valve (7) of described the first booster reel motor (6) series winding, with second ball valve (8) of described the second booster reel motor (9) series winding and with the 3rd ball valve (11) of described proportional pressure control valve (10) series winding.
9. a continuous wall grab is characterized in that, comprises the hydraulic system such as each described booster reel among the claim 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204330331U CN202865900U (en) | 2012-08-28 | 2012-08-28 | Continuous wall grab bucket and hydraulic system of hose reel thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012204330331U CN202865900U (en) | 2012-08-28 | 2012-08-28 | Continuous wall grab bucket and hydraulic system of hose reel thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202865900U true CN202865900U (en) | 2013-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012204330331U Expired - Lifetime CN202865900U (en) | 2012-08-28 | 2012-08-28 | Continuous wall grab bucket and hydraulic system of hose reel thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202865900U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797274A (en) * | 2012-08-28 | 2012-11-28 | 北京南车时代机车车辆机械有限公司 | Hydraulic system for rubber hose reel and continuous wall grab bucket with hydraulic system |
| CN103866814A (en) * | 2014-03-26 | 2014-06-18 | 徐工集团工程机械股份有限公司 | Hose follow-up device and hydraulic grab machine |
| WO2022116091A1 (en) * | 2020-12-01 | 2022-06-09 | 徐州徐工环境技术有限公司 | Hydraulic reel system and control method for soil detection and repair workstation |
-
2012
- 2012-08-28 CN CN2012204330331U patent/CN202865900U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102797274A (en) * | 2012-08-28 | 2012-11-28 | 北京南车时代机车车辆机械有限公司 | Hydraulic system for rubber hose reel and continuous wall grab bucket with hydraulic system |
| CN103866814A (en) * | 2014-03-26 | 2014-06-18 | 徐工集团工程机械股份有限公司 | Hose follow-up device and hydraulic grab machine |
| CN103866814B (en) * | 2014-03-26 | 2016-03-23 | 徐工集团工程机械股份有限公司 | Flexible pipe follow-up device and hydraulic grab machinery |
| WO2022116091A1 (en) * | 2020-12-01 | 2022-06-09 | 徐州徐工环境技术有限公司 | Hydraulic reel system and control method for soil detection and repair workstation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
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 LOCOMOTIVE AND ROLLING STOCK MECHANICS Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130410 |