CN204512031U - Power tongs device for lifting interlocking control mechanism - Google Patents
Power tongs device for lifting interlocking control mechanism Download PDFInfo
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- CN204512031U CN204512031U CN201520149699.8U CN201520149699U CN204512031U CN 204512031 U CN204512031 U CN 204512031U CN 201520149699 U CN201520149699 U CN 201520149699U CN 204512031 U CN204512031 U CN 204512031U
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- power tongs
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Abstract
The utility model discloses a kind of power tongs device for lifting interlocking control mechanism, comprise the oil hydraulic motor hanging and rise fluid cylinder, power tongs, hang and rise fluid cylinder and hang the oil circuit control rising fluid cylinder and be connected, the oil hydraulic motor of power tongs is connected with the oil circuit control of power tongs oil hydraulic motor; Hang the oil circuit control rising fluid cylinder to connect with the oil circuit control of power tongs oil hydraulic motor by connecting oil duct, this connection oil duct is provided with torque meter and relief valve.The utility model is rational in infrastructure, has both ensured the safety of onsite application, protects again power tongs and is not damaged.
Description
Technical field
The utility model relates to a kind of power tongs device for lifting interlocking control mechanism.
Background technique
Petroleum drilling and mining power tongs is equipped with hydraulic lifting fluid cylinder on suspension rod, to carry out the height and position of upper and lower motivation of adjustment tong relative to drilling tool coupling by fluid cylinder; The hydraulic motor of original power tongs lifting jar and output torque adopts same hydraulic system, and owing to not having mutual interlocking gear, power tongs occurs lifting jar is moved because original hydraulic system exists design deficiency while operation, fragile pliers.
Summary of the invention
The purpose of this utility model is to provide a kind of rational in infrastructure, has both ensured the safety of onsite application, protects again the power tongs device for lifting interlocking control mechanism that power tongs is not damaged.
Technical solution of the present utility model is:
A kind of power tongs device for lifting interlocking control mechanism, it is characterized in that: comprise the oil hydraulic motor hanging and rise fluid cylinder, power tongs, hang and rise fluid cylinder and hang the oil circuit control rising fluid cylinder and be connected, the oil hydraulic motor of power tongs is connected with the oil circuit control of power tongs oil hydraulic motor; Hang the oil circuit control rising fluid cylinder to connect with the oil circuit control of power tongs oil hydraulic motor by connecting oil duct, this connection oil duct is provided with torque meter and relief valve; The described oil circuit control rising fluid cylinder that hangs comprises and the equilibrium valve hanging oil-lifting jar and be connected, equilibrium valve is connected with the first hand-operated direction valve, and logical valve is set between equilibrium valve and the first hand-operated direction valve, logical valve connects with the above-mentioned oil duct that is connected, and the first hand-operated direction valve is connected with filler opening; The oil circuit control of described power tongs oil hydraulic motor comprises the upper button relief valve in parallel with power tongs oil hydraulic motor, one end of power tongs oil hydraulic motor, upper button relief valve parallel-connection structure by the second hand-operated direction valve be connected oil duct and connect, the other end of power tongs oil hydraulic motor, upper button relief valve parallel-connection structure passes through the second hand-operated direction valve and is connected with return opening; Connect oil duct two ends to be connected with the first hand-operated direction valve, the second hand-operated direction valve respectively.
The utility model is rational in infrastructure, and when power tongs clamping drilling tool, lifting jar auto lock, prevents from sliding up and down, damaging pliers; When power tongs unclamps drilling tool, lifting jar automatic unlocking, can carry out up-down adjustment; The self interlocking of lifting jar auto-changeover control, both ensured the safety of onsite application, and protected again power tongs and be not damaged.Rise in fluid cylinder oil circuit control hanging, between hand-operated direction valve and equilibrium valve, increase logical valve, hydraulic control logical valve rotates the switching of produced load oil pressure cntrol logical valve spool by oil hydraulic motor, realize hanging the interlocking that the lifting that rises fluid cylinder and oil hydraulic motor rotate, namely hang rise fluid cylinder and oil hydraulic motor can only an action, can not action simultaneously.Power tongs hangs and rises fluid cylinder with the oil hydraulic motor of power tongs is oil circuit of connecting, and manually selector valve switches the oscilaltion campaign realizing power tongs.Oil hydraulic motor rotate and output torque time, hang and rise fluid cylinder auto lock, and oil circuit locking, operation control valve lost efficacy, and power tongs can not move up and down or slide.After oil hydraulic motor stall or decompression, hang and rise the automatic conducting of fluid cylinder oil circuit.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
A kind of power tongs device for lifting interlocking control mechanism, comprises the oil hydraulic motor 8 hanging and rise fluid cylinder 6, power tongs, hangs to rise fluid cylinder and hang the oil circuit control rising fluid cylinder and be connected, and the oil hydraulic motor of power tongs is connected with the oil circuit control of power tongs oil hydraulic motor; Hang the oil circuit control rising fluid cylinder to connect with the oil circuit control of power tongs oil hydraulic motor by connecting oil duct 11, this connection oil duct is provided with torque meter 7 and relief valve 1; The described oil circuit control rising fluid cylinder that hangs comprises and the equilibrium valve 5 hanging oil-lifting jar and be connected, equilibrium valve is connected with the first hand-operated direction valve 2, and logical valve 4 is set between equilibrium valve and the first hand-operated direction valve, logical valve is connected with the above-mentioned oil duct that is connected by oil duct 3p, and the first hand-operated direction valve is connected with filler opening; The oil circuit control of described power tongs oil hydraulic motor comprises the upper button relief valve 9 in parallel with power tongs oil hydraulic motor, one end of power tongs oil hydraulic motor, upper button relief valve parallel-connection structure by the second hand-operated direction valve 10 be connected oil duct and connect, the other end of power tongs oil hydraulic motor, upper button relief valve parallel-connection structure passes through the second hand-operated direction valve and is connected with return opening; Connect oil duct two ends to be connected with the first hand-operated direction valve, the second hand-operated direction valve respectively.Pressure gauge 3 is also had in figure.
Its working principle as shown in Figure 1; The lifting of power tongs with rotate output torque and rise fluid cylinder 6 and oil hydraulic motor 8 realizes by hanging respectively, both have hand-operated direction valve 2 and hand-operated direction valve 10 to operate to control respectively.When operating hand-operated direction valve 2 respectively to 2a or 2b position, torque meter 7 shows without torque value, namely oil circuit 3p position is without pressure, logical valve 4 remains on 3a position under spring force, oil circuit conducting, realizes the free oscilaltion of power tongs, decontrols hand-operated direction valve 2 handle, automatically reset, and realize power tongs by equilibrium valve 5 and stop on any height and lock.
When operating hand-operated direction valve 10 to 10a or 10b position, oil hydraulic motor 8 rotates, and power tongs clamping drilling tool also carries out upper shackle operation; Now, torque meter 7 shows torque value (pressure), namely there is force value oil circuit 3p position, logical valve 4 makes spool move to 3b position by under the effect of 3p pilot pressure, disconnect hanging the oil circuit rising fluid cylinder 6, and lock oil circuit, fluid path is hand-operated direction valve 2 operation failure not only, and logical valve 4 and equilibrium valve 5 will hang and rise fluid cylinder 6 and lock simultaneously, logical valve 4 goes back the oil circuit of locking by hand-operated direction valve 2, guarantee, when power tongs clamping drilling tool rotates, to hang and rise fluid cylinder 6 and hand-operated direction valve 2 secure ratcs simultaneously, and do not glide.Prevent the generation in use occurring damaging the security incidents such as power tongs.
Claims (1)
1. a power tongs device for lifting interlocking control mechanism, it is characterized in that: comprise the oil hydraulic motor hanging and rise fluid cylinder, power tongs, hang and rise fluid cylinder and hang the oil circuit control rising fluid cylinder and be connected, the oil hydraulic motor of power tongs is connected with the oil circuit control of power tongs oil hydraulic motor; Hang the oil circuit control rising fluid cylinder to connect with the oil circuit control of power tongs oil hydraulic motor by connecting oil duct, this connection oil duct is provided with torque meter and relief valve; The described oil circuit control rising fluid cylinder that hangs comprises and the equilibrium valve hanging oil-lifting jar and be connected, equilibrium valve is connected with the first hand-operated direction valve, and logical valve is set between equilibrium valve and the first hand-operated direction valve, logical valve connects with the above-mentioned oil duct that is connected, and the first hand-operated direction valve is connected with filler opening; The oil circuit control of described power tongs oil hydraulic motor comprises the upper button relief valve in parallel with power tongs oil hydraulic motor, one end of power tongs oil hydraulic motor, upper button relief valve parallel-connection structure by the second hand-operated direction valve be connected oil duct and connect, the other end of power tongs oil hydraulic motor, upper button relief valve parallel-connection structure passes through the second hand-operated direction valve and is connected with return opening; Connect oil duct two ends to be connected with the first hand-operated direction valve, the second hand-operated direction valve respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520149699.8U CN204512031U (en) | 2015-03-17 | 2015-03-17 | Power tongs device for lifting interlocking control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520149699.8U CN204512031U (en) | 2015-03-17 | 2015-03-17 | Power tongs device for lifting interlocking control mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512031U true CN204512031U (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520149699.8U Active CN204512031U (en) | 2015-03-17 | 2015-03-17 | Power tongs device for lifting interlocking control mechanism |
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| Country | Link |
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| CN (1) | CN204512031U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504016A (en) * | 2017-10-11 | 2017-12-22 | 宝鸡石油机械有限责任公司 | A kind of all-hydraulic interlocking loop with emergency shutdown function |
| CN109681493A (en) * | 2018-12-29 | 2019-04-26 | 湖北航天技术研究院总体设计所 | Leveling control loop and control method based on hydraulic control self-lock |
-
2015
- 2015-03-17 CN CN201520149699.8U patent/CN204512031U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107504016A (en) * | 2017-10-11 | 2017-12-22 | 宝鸡石油机械有限责任公司 | A kind of all-hydraulic interlocking loop with emergency shutdown function |
| CN107504016B (en) * | 2017-10-11 | 2019-09-24 | 宝鸡石油机械有限责任公司 | A kind of all-hydraulic interlocking loop with emergency shutdown function |
| CN109681493A (en) * | 2018-12-29 | 2019-04-26 | 湖北航天技术研究院总体设计所 | Leveling control loop and control method based on hydraulic control self-lock |
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