CN212297070U - Heavy oil cylinder stroke adjustable system - Google Patents
Heavy oil cylinder stroke adjustable system Download PDFInfo
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- CN212297070U CN212297070U CN202021237802.1U CN202021237802U CN212297070U CN 212297070 U CN212297070 U CN 212297070U CN 202021237802 U CN202021237802 U CN 202021237802U CN 212297070 U CN212297070 U CN 212297070U
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Abstract
The utility model discloses a heavy oil cylinder stroke adjustable system, which comprises a hydraulic driving system, an adjustable ejector rod and a working oil cylinder; the hydraulic driving system comprises a hydraulic pump, an oil tank, a double-acting hydraulic cylinder and a circulating pipe; the circulating pipe is also distributed with a circulating pipe electric control valve; a press switch is distributed below the adjustable limit lock nut; the push switch is connected with and controls the upper oil pipe electric control valve, the lower oil pipe electric control valve and the circulating pipe electric control valve through a control circuit; the lower end of the adjustable ejector rod is connected with a piston rod of the working oil cylinder. Use the utility model discloses have advantages such as regulation and control accuracy, safe in utilization.
Description
Technical Field
The utility model relates to a heavy hydro-cylinder surely controls technical field, concretely relates to heavy hydro-cylinder stroke adjustable system.
Background
The oil cylinder is an important part in mechanical equipment, and has the main function of converting hydraulic energy into mechanical energy to perform linear reciprocating motion. Particularly, the heavy oil cylinder mainly provides lifting positioning for a large lifting platform and an object to be lifted in heavy industry production, and is convenient for automatic processing. However, the current heavy oil cylinder is difficult to lift, position and adjust, and is mainly unfavorable for positioning and adjusting due to the fact that an oil cylinder system generates large vibration and adjusting hysteresis at the starting and stopping moments.
The above background disclosure is only provided to aid in understanding the concepts and technical solutions of the present invention, and it does not necessarily belong to the prior art of the present patent application, and it should not be used to assess the novelty and inventive step of the present application without explicit evidence that the above content has been disclosed at the filing date of the present patent application.
SUMMERY OF THE UTILITY MODEL
The utility model provides an accurate, the safe in utilization heavy hydro-cylinder stroke adjustable system of regulation and control to above-mentioned technical problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a heavy oil cylinder stroke adjustable system comprises a hydraulic driving system, an adjustable ejector rod and a working oil cylinder; the hydraulic driving system comprises a hydraulic pump, an oil tank, a double-acting hydraulic cylinder and a circulating pipe; one end of the hydraulic pump is connected with one end of an oil tank, and the other end of the hydraulic pump is communicated with an upper cavity of the double-acting hydraulic cylinder through an oil feeding pipe; the other end of the oil tank is communicated with a lower cavity of the double-acting hydraulic cylinder through an oil discharging pipe; an upper oil pipe electric control valve and a lower oil pipe electric control valve are respectively arranged on the upper oil pipe and the lower oil pipe; two ends of the circulating pipe are respectively communicated with the upper oil pipe and the lower oil pipe, and the upper end connecting ports of the circulating pipe are distributed between the hydraulic pump and the electric control valve of the upper oil pipe, and the lower end connecting ports of the circulating pipe are distributed between the oil tank and the electric control valve of the lower oil pipe; the circulating pipe is also distributed with a circulating pipe electric control valve; the upper end of the adjustable ejector rod is connected with the lower end of a piston rod of the double-acting hydraulic cylinder, and adjustable limiting locking nuts are distributed on the adjustable ejector rod; a press switch is distributed below the adjustable limit lock nut; the push switch is connected with and controls the upper oil pipe electric control valve, the lower oil pipe electric control valve and the circulating pipe electric control valve through a control circuit; the lower end of the adjustable ejector rod is connected with a piston rod of the working oil cylinder.
Furthermore, scales are distributed on the adjustable ejector rod and external threads are formed in the adjustable ejector rod, and the adjustable limiting lock nut is adjustably distributed on the adjustable ejector rod through threads.
Furthermore, two adjustable limiting lock nuts are arranged.
Furthermore, the press switch is annular and is an elastic electric control switch, and the press switch can be freely sleeved on the adjustable ejector rod.
Furthermore, a thread groove is formed in the upper end of a piston rod of the working oil cylinder, an external thread is formed in the lower end of the adjustable ejector rod, and the adjustable ejector rod is detachably connected with the piston rod of the working oil cylinder through a thread structure.
Further, the pressure relief safety sleeve is also included; a lower spring and an upper spring are distributed in the inner cavity of the pressure relief safety sleeve; the lower end of a piston rod of the double-acting hydraulic cylinder is provided with a convex block; the lower part of a piston rod of the double-acting hydraulic cylinder is inserted into an inner cavity of the pressure relief safety sleeve and distributed; the upper springs are distributed above the lug, and the lower springs are distributed below the lug; the lower end of the pressure relief safety sleeve is detachably connected with the upper end of the adjustable ejector rod.
The utility model has the advantages of compared with the prior art: the utility model drives the working oil cylinder by the hydraulic driving system, when in use, the piston rod of the double-acting hydraulic cylinder is driven by the hydraulic pump to move up and down, thereby promoting the movement of the working oil cylinder to operate; the continuous stability of the driving force is kept in the driving process, meanwhile, the lifting displacement control of the working oil cylinder on a lifting object is realized through the adjustable limiting effect of the adjustable ejector rod, when the lifting object reaches a limiting point, the stable braking of a hydraulic driving system is controlled through the arrangement of the press switch, namely, the press switch is extruded by the upper end of the cylinder barrel of the working oil cylinder when the lifting object reaches the limiting point, and then a switch signal is sent out to control the timely closing of the upper oil pipe electric control valve and the lower oil pipe electric control valve and simultaneously open the circulating pipe electric control valve, so that the protection of the hydraulic pump is realized, and the upper cavity and the lower cavity of the double-acting hydraulic cylinder are. The utility model discloses still through being equipped with pressure release safety sleeve, when effectively preventing automatic operation process hydraulic drive system from breaking down, still last impel and appear push switch crushed, the working cylinder continuously pushes even and then causes the trouble that relevant equipment crushed to the continuous lift of lift object after reaching the limiting point, can effectively absorb the fault stress through being equipped with pressure release safety sleeve, extension reaction time improves the operation security, excellent in use effect.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, a heavy oil cylinder stroke adjustable system comprises a hydraulic driving system, an adjustable ejector rod 1 and a working oil cylinder 7; the hydraulic driving system comprises a hydraulic pump 18, an oil tank 17, a double-acting hydraulic cylinder 13 and a circulating pipe 16; one end of the hydraulic pump 18 is connected with one end of an oil tank 17, and the other end of the hydraulic pump 18 is communicated with an upper cavity of the double-acting hydraulic cylinder 13 through an oil feeding pipe 19; the other end of the oil tank 17 is communicated with a lower cavity of the double-acting hydraulic cylinder 13 through an oil discharge pipe 14; an upper oil pipe electric control valve 20 and a lower oil pipe electric control valve 15 are respectively arranged on the upper oil pipe 19 and the lower oil pipe 14; two ends of the circulating pipe 16 are respectively communicated with the upper oil pipe and the lower oil pipe, and the upper end connecting ports of the circulating pipe are distributed between the hydraulic pump and the electric control valve of the upper oil pipe, and the lower end connecting ports of the circulating pipe are distributed between the oil tank and the electric control valve of the lower oil pipe; and an electric control valve 21 of the circulating pipe is distributed on the circulating pipe. In order to improve the operation safety, the embodiment is also provided with a pressure relief safety sleeve 8; a lower spring 9 and an upper spring 11 are distributed in the inner cavity of the pressure relief safety sleeve 8; the lower end of a piston rod 12 of the double-acting hydraulic cylinder 13 is provided with a lug 10 which plays the roles of limiting and supporting a spring; the lower part of a piston rod 12 of the double-acting hydraulic cylinder is inserted into the inner cavity of the pressure relief safety sleeve 8 and can be movably distributed; the upper spring 11 is distributed above the lug 10, and the lower spring 9 is distributed below the lug; the lower end of the pressure relief safety sleeve 8 is detachably connected with the upper end of the adjustable ejector rod 1. The adjustable ejector rod 1 is provided with scales and external threads 2, and is also provided with two adjustable limiting locking nuts 4, wherein the two adjustable limiting locking nuts 4 are arranged to improve the limiting stability and are adjustably distributed on the adjustable ejector rod through threads. A push switch 5 is distributed below the adjustable limit lock nut; the push switch 5 is annular, is an elastic electric control switch, can be freely sleeved on the adjustable ejector rod, has a simple structure, namely is provided with a main body and a telescopic body, a spring is arranged between the main body and the telescopic body, and the telescopic body is pressed and attached to the bottom of the main body to realize the switching action, namely is similar to an elastic switch. The push switch 5 is connected with and controls the upper oil pipe electric control valve, the lower oil pipe electric control valve and the circulating pipe electric control valve through a control circuit; in the embodiment, the upper end of the piston rod of the working oil cylinder is provided with a thread groove 7-1, the lower end of the adjustable ejector rod is provided with an external thread 6, and the adjustable ejector rod is detachably connected with the piston rod of the working oil cylinder through a thread structure. When the hydraulic driving system is used, a piston rod of the working oil cylinder is forcefully extruded and moved, and the adjustable limiting locking nut 4 is adjusted to realize limiting regulation and control.
The method for carrying out the safe and adjustable control on the stroke of the working oil cylinder by adopting the stroke adjustable system of the heavy oil cylinder is characterized by comprising the following steps:
(1) adjusting the adjustable limiting lock nut according to the scale on the adjustable ejector rod;
(2) starting the hydraulic driving system, wherein at the moment, the electric control valve of the upper oil pipe and the electric control valve of the lower oil pipe are opened, and the electric control valve of the circulating pipe is closed; a piston rod of the double-acting hydraulic cylinder moves downwards to drive a piston rod of the working oil cylinder to move downwards, and then an output shaft of the working oil cylinder drives the platform to be adjusted to ascend;
(3) when the limit point is reached, the press switch is extruded by the upper end of the cylinder barrel of the working oil cylinder, so as to trigger the switch, at the moment, the upper oil pipe electric control valve and the lower oil pipe electric control valve are closed, and the circulating pipe electric control valve is opened; the hydraulic pump continues to rotate, an oil way of the hydraulic driving system circularly flows through the circulating pipe, and the hydraulic pump is closed according to requirements, so that one-time safe and adjustable control is completed.
Claims (6)
1. The utility model provides an adjustable system of heavy hydro-cylinder stroke which characterized in that: comprises a hydraulic driving system, an adjustable ejector rod and a working oil cylinder; the hydraulic driving system comprises a hydraulic pump, an oil tank, a double-acting hydraulic cylinder and a circulating pipe; one end of the hydraulic pump is connected with one end of an oil tank, and the other end of the hydraulic pump is communicated with an upper cavity of the double-acting hydraulic cylinder through an oil feeding pipe; the other end of the oil tank is communicated with a lower cavity of the double-acting hydraulic cylinder through an oil discharging pipe; an upper oil pipe electric control valve and a lower oil pipe electric control valve are respectively arranged on the upper oil pipe and the lower oil pipe; two ends of the circulating pipe are respectively communicated with the upper oil pipe and the lower oil pipe, and the upper end connecting ports of the circulating pipe are distributed between the hydraulic pump and the electric control valve of the upper oil pipe, and the lower end connecting ports of the circulating pipe are distributed between the oil tank and the electric control valve of the lower oil pipe; the circulating pipe is also distributed with a circulating pipe electric control valve; the upper end of the adjustable ejector rod is connected with the lower end of a piston rod of the double-acting hydraulic cylinder, and adjustable limiting locking nuts are distributed on the adjustable ejector rod; a press switch is distributed below the adjustable limit lock nut; the push switch is connected with and controls the upper oil pipe electric control valve, the lower oil pipe electric control valve and the circulating pipe electric control valve through a control circuit; the lower end of the adjustable ejector rod is connected with a piston rod of the working oil cylinder.
2. The system of claim 1, wherein the system comprises: the adjustable ejector rod is provided with scales and external threads, and the adjustable limiting lock nut is adjustably distributed on the adjustable ejector rod through threads.
3. The system of claim 2, wherein the system comprises: the adjustable limiting lock nuts are provided with two adjustable limiting lock nuts.
4. The system of claim 1, wherein the system comprises: the press switch is annular and is an elastic electric control switch, and the press switch can be freely sleeved on the adjustable ejector rod.
5. The system of claim 1, wherein the system comprises: the upper end of a piston rod of the working oil cylinder is provided with a thread groove, the lower end of the adjustable ejector rod is provided with an external thread, and the adjustable ejector rod is detachably connected with the piston rod of the working oil cylinder through a thread structure.
6. The system of claim 1, wherein the system comprises: the pressure relief safety sleeve is also included; a lower spring and an upper spring are distributed in the inner cavity of the pressure relief safety sleeve; the lower end of a piston rod of the double-acting hydraulic cylinder is provided with a convex block; the lower part of a piston rod of the double-acting hydraulic cylinder is inserted into an inner cavity of the pressure relief safety sleeve and distributed; the upper springs are distributed above the lug, and the lower springs are distributed below the lug; the lower end of the pressure relief safety sleeve is detachably connected with the upper end of the adjustable ejector rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021237802.1U CN212297070U (en) | 2020-06-29 | 2020-06-29 | Heavy oil cylinder stroke adjustable system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021237802.1U CN212297070U (en) | 2020-06-29 | 2020-06-29 | Heavy oil cylinder stroke adjustable system |
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| Publication Number | Publication Date |
|---|---|
| CN212297070U true CN212297070U (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021237802.1U Active CN212297070U (en) | 2020-06-29 | 2020-06-29 | Heavy oil cylinder stroke adjustable system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677702A (en) * | 2020-06-29 | 2020-09-18 | 广西玉柴机器股份有限公司 | Heavy oil cylinder stroke adjustable system and safety adjustable control method |
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2020
- 2020-06-29 CN CN202021237802.1U patent/CN212297070U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111677702A (en) * | 2020-06-29 | 2020-09-18 | 广西玉柴机器股份有限公司 | Heavy oil cylinder stroke adjustable system and safety adjustable control method |
| CN111677702B (en) * | 2020-06-29 | 2024-05-03 | 广西玉柴机器股份有限公司 | Stroke adjustable system and safety adjustable control method for heavy oil cylinder |
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