Hydraulic elevator triggering device and hydraulic elevator

Abstract

The invention discloses a hydraulic elevator trigger device and a hydraulic elevator, and belongs to the technical field of petroleum drilling, the hydraulic elevator trigger device comprises a bushing used for positioning a drill string; the valve element assembly is mounted on the elevator and used for on-off treatment of a hydraulic oil way of the elevator; the pushing mechanism is installed on the elevator and used for being matched with the bushing to push the valve element assembly to do linear motion; the pushing mechanism comprises a movable pin shaft A and a movable pin shaft B, the movable pin shaft B is fixedly connected to the movable pin shaft A, the movable pin shaft A and the movable pin shaft B are both in sliding fit with limiting sliding grooves formed in the elevator, and the movable pin shaft B is provided with a pushing groove used for pushing the valve element assembly. The elastic pressing block is used for elastically pressing the movable pin shaft A to enable the movable pin shaft A to abut against the side parts of the two bushings; according to the invention, the operation of holding the drill column by the elevator is safer, more convenient, more efficient and more reliable.

Description

Technical Field

[0001] The invention belongs to the technical field of oil drilling, and in particular relates to a hydraulic elevator trigger device and a hydraulic elevator. Background Art

[0002] Elevators are essential tools for oil drilling operations. When drilling, elevators are required to lift and lower the pipe. At present, the elevator devices used on site mostly rely on manual judgment of whether the pipe is in place, and manual operation to close the elevator. After various drill strings are placed in the elevator, the operator subjectively judges whether the drill string is in place, and then performs subsequent operations such as closing the elevator. This operation mode is prone to human misjudgment, resulting in various faults when holding the drill string. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a hydraulic elevator trigger device and a hydraulic elevator to solve the above problems.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: A hydraulic elevator trigger device includes two bushings symmetrically connected to the elevator through a bushing shaft, and also includes: The valve core assembly is installed on the elevator and is used for on-off processing of the hydraulic oil circuit of the elevator; The pushing mechanism is installed on the elevator and is used to cooperate with the core-filling to push the valve core assembly, including an elastic pressing assembly installed on the elevator, the elastic pressing assembly includes a spring positioning block, the spring positioning block sleeved with a spring adjustment pad is embedded and installed in a notch opened on the elevator limit slide and is detachably connected to the elevator, a moving pin B fixedly connected to a moving pin A is slidably arranged in the limit slide, one end of the return spring B installed in the limit slide is fixedly connected to the end of the moving pin B, and the other end is sleeved on the spring positioning block and contacts the end surface of the spring adjustment pad; Spring adjuster replacement alarm system, used to determine spring adjuster thickness and issue an alarm, including: The thickness adjustment coefficient determination module generates the thickness adjustment coefficient according to the current length information of the return spring B, the thickness information of the current spring adjustment pad, and the ambient temperature information of the return spring B; A judgment module is used to construct a coefficient safety model and input the thickness adjustment coefficient into the coefficient safety model to output the safety factor, compare the obtained safety factor with the safety factor threshold, and if the obtained safety factor is greater than the safety factor threshold, output the judgment information and alarm information that the spring adjustment pad needs to be replaced; The thickness determination module generates the thickness information of the spring adjustment pad to be replaced based on the judgment information, the thickness adjustment coefficient and the current thickness information of the return spring B.

[0005] On the basis of the above technical solution, the present invention also provides the following optional technical solution: Further technical solution: The valve core assembly includes a valve core and a valve core push rod, the valve core is fixedly connected to the upper end of the valve core push rod, and the valve core is fixedly connected with a rubber sleeve plug B and a rubber sleeve plug A in sequence, the valve core push rod slides with the valve barrel fixedly connected to the hanging card, the rubber sleeve plug B slides with the valve barrel, the valve barrel is provided with an oil circuit connector connected to the hydraulic oil pipe, the valve core is fixedly connected with a reset spring A fixedly connected to the inner wall of the valve barrel, and the lower end of the valve core push rod is located in the push groove and has a round head.

[0006] Further technical solution: The movable pin shaft B is provided with a push groove for pushing the valve core assembly.

[0007] Further technical solution: The spring adjustment pad replacement alarm system also includes: The data acquisition module is used to collect the status information of the spring positioning block, the pressure information of the moving pin shaft A on the bushing, and the thickness information of the current spring adjustment pad. The status information includes the current length information of the reset spring B and the temperature information of the environment in which the reset spring B is located.

[0008] Further technical solution: The specific steps of the thickness adjustment coefficient determination module are: S201, constructing a thickness adjustment coefficient determination model through the current length information of the return spring B, the thickness information of the current spring adjustment pad, the ambient temperature of the return spring B, the target pressure information, and the reference temperature information. The thickness adjustment coefficient determination model is expressed as: represents the thickness adjustment coefficient, Indicates the target pressure information. Indicates the current pressure information. represents the thermal expansion coefficient of the material, Indicates the current length information of the return spring B. Indicates the current ambient temperature information. Indicates reference temperature information, Indicates the thickness information of the current spring adjustment pad; S202, importing the current length information of the return spring B, the current thickness information of the spring adjustment pad, and the ambient temperature of the return spring B collected by the data collection module into a thickness adjustment coefficient determination model to output a thickness adjustment coefficient.

[0009] Further technical solution: The reference temperature refers to the ambient temperature of the spring system under the design or calibration state, and the thermal expansion coefficient of the material refers to the change in unit length of the material under unit temperature change, which reflects the sensitivity of the material to temperature changes. The larger the value, the greater the amplitude of the material expansion when heated or contraction when cooled.

[0010] Further technical solution: The coefficient safety model is expressed as: ,in, represents the safety factor, Indicates the thickness adjustment factor.

[0011] Further technical solution: The specific steps of the thickness determination module include: S401, constructing a thickness determination model through the current length information of the return spring B, the thickness information of the current spring adjustment pad, the ambient temperature of the return spring B, the target pressure information, and the reference temperature information. The thickness determination model is expressed as: Indicates the thickness information of the spring adjustment pad that needs to be replaced. represents the thickness adjustment coefficient, Indicates the target pressure information. Indicates the current pressure information. represents the thermal expansion coefficient of the material, Indicates the current length information of the return spring B. Indicates the current ambient temperature information. Indicates reference temperature information, Indicates the thickness information of the current spring adjustment pad. Indicates the thrust adjustment item, represents the temperature compensation term; S402, receiving the judgment information formed by the judgment module, importing the thickness adjustment coefficient and the current thickness information of the spring adjustment pad into the thickness determination model, and outputting the thickness information of the spring adjustment pad that needs to be replaced.

[0012] Further technical solution: A hydraulic elevator adopts the above-mentioned hydraulic elevator triggering device.

[0013] The present invention provides a hydraulic elevator trigger device and a hydraulic elevator, which have the following beneficial effects compared with the prior art: 1. The present invention uses the linkage design of the core bushing and the pushing mechanism, combined with the automatic on-off control of the hydraulic oil circuit by the valve core assembly, to trigger the closure when the drill string is in place without manual intervention, significantly reducing the risk of misjudgment and improving operational safety and efficiency; 2. The elastic pressing assembly in the present invention dynamically compensates for the elastic force fluctuation caused by temperature changes through the reset spring B and the replaceable spring adjustment pad, ensuring that the device can operate stably under different working conditions, and further enhances the system reliability through the precise cooperation of the limit slide and the moving pin; 3. The present invention integrates a spring adjustment pad replacement alarm system, which collects the length of the reset spring B, ambient temperature and pressure data in real time, calculates the safety factor through a mathematical model and issues an early warning, prompting the replacement of the adjustment pad thickness in advance, reducing sudden failure shutdowns and extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0015] Figure 2 It is a front view of the present invention.

[0016] Figure 3 It is the right view of the present invention.

[0017] Figure 4 It is a top view of the present invention.

[0018] Figure 5 A schematic structural diagram of a valve core assembly of the present invention.

[0019] Notes on the accompanying drawings: 1. Bushing; 2. Bushing shaft; 3. Valve core assembly; 301. Valve core; 302. Valve core push rod; 303. Rubber sleeve plug A; 304. Rubber sleeve plug B; 305. Valve cylinder; 306. Oil circuit connector; 307. Reset spring A; 4. Push mechanism; 401. Moving pin A; 402. Moving pin B; 403. Push groove; 404. Elastic pressing assembly; 4041. Spring positioning block; 4042. Spring adjustment pad; 4043. Reset spring B; 5. Drill string. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] The specific implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0022] See also Figures 1 to 5 , provided in one embodiment of the present invention, is a hydraulic elevator triggering device, comprising: The two bushings 1 are symmetrically connected to the elevator through the bushing shaft 2 and are used to position the drill string 5. The valve core assembly 3 is installed on the elevator and is used for on-off processing of the hydraulic oil circuit of the elevator; The pushing mechanism 4 is installed on the elevator and is used to cooperate with the bushing 1 to push the valve core assembly 3 to perform linear motion; The pushing mechanism 4 includes a moving pin A401 and a moving pin B402, wherein the moving pin B402 is fixedly connected to the moving pin A401, and the moving pin A401 and the moving pin B402 are both slidably matched with a limiting slide groove (not shown in the figure) provided on the elevator, and a pushing groove 403 for pushing the valve core assembly 3 is provided on the moving pin B402, and further includes: An elastic pressing component 404 is installed on the elevator and is used to elastically press the movable pin A401 to make the movable pin A401 contact the two sides of the bushing 1; Among them, the elastic pressure component 404 includes a spring positioning block 4041, a spring adjustment pad 4042 and a return spring B4043, the spring adjustment pad 4042 is sleeved on the spring positioning block 4041, the spring positioning block 4041 is embedded in the groove of the limiting slide and is detachably connected to the hanging card, the return spring B4043 is installed in the limiting slide, one end of the return spring B4043 is fixedly connected to the end of the movable pin shaft B402, and the other end of the return spring B4043 is sleeved on the spring positioning block 4041 and contacts the end face of the spring adjustment pad 4042.

[0023] In the embodiment of the present invention, the drill string 5 is inserted into the elevator. At this time, the drill string 5 pushes the bushing 1 to rotate around the bushing shaft 2. At this time, the bushing 1 pushes the movable pin A401 to drive the movable pin B402 to slide along the limiting slide groove. At this time, the movable pin B402 squeezes the return spring B4043 to contract and resist the spring adjustment pad 4042. At this time, the push groove 403 provided on the movable pin B402 pushes the valve core assembly 3 to perform linear movement, thereby causing the valve core 301 in the valve core assembly 3 to move upward, thereby causing the liquid of the elevator to The hydraulic oil circuit is opened and subsequent actions are performed. If the valve core 301 does not move upward and the hydraulic oil circuit of the elevator is not opened, it means that the drill string 5 is not in the center of the core filling and the subsequent actions are not performed. When the drill string 5 is taken away, the reset spring B4043 pushes the movable pin B402 to drive the movable pin A401 to reset, and the valve core assembly 3 is also reset. At the same time, the elastic force of the reset spring B4043 can be adjusted by replacing the spring adjustment pad 4042 of different thicknesses to ensure the functional sensitivity of the entire hydraulic elevator trigger device.

[0024] Preferably, the valve core assembly 3 includes a valve core 301 and a valve core push rod 302, the valve core 301 is fixedly connected to the upper end of the valve core push rod 302, the valve core 301 is fixedly connected with a rubber sleeve plug B304 and a rubber sleeve plug A303 in sequence, the valve core push rod 302 is slidably matched with a valve cylinder 305 fixedly connected to the hanging card, the rubber sleeve plug B304 is slidably matched with the valve cylinder 305, the valve cylinder 305 is provided with an oil circuit connector 306 connected to the hydraulic oil pipe, the valve core 301 is fixedly connected with a reset spring A307 fixedly connected to the inner wall of the valve cylinder 305, the lower end of the valve core push rod 302 is located in the push groove 403 and is a round head, the purpose of this arrangement is The purpose is to utilize the pushing mechanism 4 to push the valve core push rod 302 to drive the valve core 301 to push the rubber sleeve plug B304 to slide along the valve cylinder 305, so as to cause the rubber sleeve plug B304 that blocks the inner oil port of the oil circuit connector 306 to move away from the inner oil port, thereby causing the two oil circuit connectors 306 to be connected with the inner cavity of the valve cylinder 305, thereby causing the hydraulic oil circuit connected to the oil circuit connector 306 to be connected, thereby realizing the opening of the hydraulic oil circuit, and further the pushing mechanism 4 is reset. At this time, the reset spring A307 pushes the valve core 301 to slide and reset with the rubber sleeve plug B304, thereby using the rubber sleeve plug B304 to block the inner oil port of the oil circuit connector 306, thereby realizing the disconnection of the hydraulic oil circuit.

[0025] As an embodiment of the present invention, it also includes: a spring adjustment pad replacement alarm system, which is used to determine the thickness of the spring adjustment pad 4042 and issue an alarm, including: A data acquisition module is used to collect status information of the spring positioning block 4041, information on the pressing force of the moving pin A401 on the bushing 1, and information on the thickness of the current spring adjustment pad 4042. The status information includes information on the current length of the reset spring B4043 and temperature information of the environment in which the reset spring B4043 is located. The thickness adjustment coefficient determination module is used to construct a thickness adjustment coefficient determination model and import the current length information of the reset spring B4043, the thickness information of the current spring adjustment pad 4042, and the ambient temperature information of the reset spring B4043 collected by the data acquisition module into the thickness adjustment coefficient determination model to output the thickness adjustment coefficient; A judgment module is used to construct a coefficient safety model and input the thickness adjustment coefficient into the coefficient safety model to output the safety factor, compare the obtained safety factor with the safety factor threshold, and if the obtained safety factor is greater than the safety factor threshold, output the judgment information and alarm information that the spring adjustment pad 4042 needs to be replaced; A thickness determination module is used to construct a thickness determination model and import the thickness adjustment coefficient and the current thickness information of the reset spring B4043 into the thickness determination model according to the judgment information of the judgment module, and output the thickness information of the spring adjustment pad 4042 that needs to be replaced; The specific working steps of the thickness adjustment coefficient determination module are as follows: S201, constructing a thickness adjustment coefficient determination model through the current length information of the return spring B4043, the thickness information of the current spring adjustment pad 4042, the ambient temperature of the return spring B4043, the target pressure information, and the reference temperature information. The thickness adjustment coefficient determination model is expressed as: represents the thickness adjustment coefficient, Indicates the target pressure information. Indicates the current pressure information. represents the thermal expansion coefficient of the material, Indicates the length information of the current return spring B4043. Indicates the current ambient temperature information. Indicates reference temperature information, Indicates the thickness information of the current spring adjustment pad 4042. The reference temperature refers to the ambient temperature of the spring system under the design or calibration state. The thermal expansion coefficient of the material refers to the change in unit length of the material under unit temperature change, which reflects the sensitivity of the material to temperature change. The larger the value, the greater the amplitude of the material expansion when heated or contraction when cooled; S202, importing the current length information of the reset spring B4043, the current thickness information of the spring adjustment pad 4042, and the ambient temperature of the reset spring B4043 collected by the data acquisition module into a thickness adjustment coefficient determination model to output a thickness adjustment coefficient.

[0026] Wherein, the coefficient safety model is expressed as: in, represents the safety factor, Indicates the thickness adjustment factor.

[0027] The specific working steps of the thickness determination module include: S401, constructing a thickness determination model through the current length information of the return spring B4043, the thickness information of the current spring adjustment pad 4042, the ambient temperature of the return spring B4043, the target pressure information, and the reference temperature information. The thickness determination model is expressed as: Indicates the thickness information of the spring adjustment pad 4042 that needs to be replaced. represents the thickness adjustment coefficient, Indicates the target pressure information. Indicates the current pressure information. represents the thermal expansion coefficient of the material, Indicates the length information of the current return spring B4043. Indicates the current ambient temperature information. Indicates reference temperature information, Indicates the thickness information of the current spring adjustment pad 4042, Indicates the thrust adjustment item, represents the temperature compensation term; S402, receiving the judgment information formed by the judgment module, importing the thickness adjustment coefficient and the current thickness information of the spring adjustment pad 4042 into the thickness determination model, and outputting the thickness information of the spring adjustment pad 4042 that needs to be replaced.

[0028] Preferably, the current length information and current temperature information of the return spring B4043 are respectively measured by a distance sensor and a temperature sensor installed on the movable pin B402, and the pressing force of the movable pin A401 on the bushing 1 is measured by a pressure sensor located at the connection between the movable pin B402 and the push groove 403 (or a pressure sensor located at the contact end of the movable pin A401 and the bushing 1).

[0029] In the embodiment of the present invention, traditional maintenance relies on manual regular inspection or post-fault repair, while the spring adjustment pad replacement alarm system changes the maintenance mode from "passive response" to "active prevention" through real-time data monitoring and intelligent analysis, greatly reducing the risk of sudden failures, reducing unplanned downtime and ensuring production continuity by early warning of the need for spring adjustment pad replacement, and ensuring the stability and sensitivity of the hydraulic elevator trigger device under different working conditions by dynamically compensating for environmental changes, thereby avoiding safety hazards such as loss of control of the hydraulic oil circuit and failure of drill string clamping due to spring failure.

[0030] A hydraulic elevator adopts the hydraulic elevator triggering device.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic elevator trigger device, comprising two bushings (1) symmetrically rotatably connected to the elevator via a bushing shaft (2), characterized in that: Also includes: The valve core assembly (3) is installed on the elevator and is used for opening and closing the hydraulic oil circuit of the elevator; The pushing mechanism (4) is installed on the hanging card and is used to cooperate with the bushing (1) to push the valve core assembly (3), including an elastic pressing assembly (404) installed on the hanging card, the elastic pressing assembly (404) including a spring positioning block (4041), the spring positioning block (4041) sleeved with a spring adjustment pad (4042) is embedded and installed in a notch opened on the hanging card limit slide and is detachably connected to the hanging card, a moving pin shaft B (402) fixedly connected to a moving pin shaft A (401) is slidably arranged in the limit slide, one end of a return spring B (4043) installed in the limit slide is fixedly connected to the end of the moving pin shaft B (402), and the other end is sleeved on the spring positioning block (4041) and contacts the end surface of the spring adjustment pad (4042); The spring adjustment pad replacement alarm system is used to determine the thickness of the spring adjustment pad (4042) and issue an alarm, including: A thickness adjustment coefficient determination module generates a thickness adjustment coefficient based on current length information of the return spring B (4043), current thickness information of the spring adjustment pad (4042), and ambient temperature information of the return spring B (4043); A judgment module is used to construct a coefficient safety model and input the thickness adjustment coefficient into the coefficient safety model to output the safety factor, compare the obtained safety factor with the safety factor threshold, and if the obtained safety factor is greater than the safety factor threshold, output a judgment message that the spring adjustment pad (4042) needs to be replaced and an alarm message; The thickness determination module generates thickness information of the spring adjustment pad (4042) that needs to be replaced based on the judgment information, the thickness adjustment coefficient and the current thickness information of the return spring B (4043).

2. The hydraulic elevator triggering device according to claim 1, characterized in that: The valve core assembly (3) comprises a valve core (301) and a valve core push rod (302); the valve core (301) is fixedly connected to the upper end of the valve core push rod (302); a rubber sleeve plug B (304) and a rubber sleeve plug A (303) are fixedly connected to the valve core (301) in sequence; the valve core push rod (302) is slidably matched with a valve cylinder (305) fixedly connected to the hanging card; the rubber sleeve plug B (304) is slidably matched with the valve cylinder (305); an oil circuit connector (306) connected to a hydraulic oil pipe is provided on the valve cylinder (305); a return spring A (307) fixedly connected to the inner wall of the valve cylinder (305) is fixedly connected to the valve core (301); and the lower end of the valve core push rod (302) is located in a push groove (403) and is a round head.

3. The hydraulic elevator triggering device according to claim 1, characterized in that: The movable pin shaft B (402) is provided with a push groove (403) for pushing the valve core assembly (3).

4. The hydraulic elevator triggering device according to claim 1, characterized in that: The spring adjustment pad replacement alarm system also includes: The data acquisition module is used to collect status information of the spring positioning block (4041), information on the pressing force of the movable pin shaft A (401) on the bushing (1), and information on the thickness of the current spring adjustment pad (4042), wherein the status information includes information on the current length of the return spring B (4043) and temperature information of the environment in which the return spring B (4043) is located.

5. The hydraulic elevator triggering device according to claim 4, characterized in that: The specific steps of the thickness adjustment coefficient determination module are as follows: S201, constructing a thickness adjustment coefficient determination model through the current length information of the return spring B (4043), the current thickness information of the spring adjustment pad (4042), the ambient temperature of the return spring B (4043), the target pressure information, and the reference temperature information. The thickness adjustment coefficient determination model is expressed as: represents the thickness adjustment coefficient, Indicates the target pressure information. Indicates the current pressure information. represents the thermal expansion coefficient of the material, Indicates the length information of the current return spring B (4043). Indicates the current ambient temperature information. Indicates reference temperature information, Indicates the thickness information of the current spring adjustment pad (4042); S202, importing the current length information of the return spring B (4043), the current thickness information of the spring adjustment pad (4042), and the ambient temperature of the return spring B (4043) collected by the data collection module into a thickness adjustment coefficient determination model to output a thickness adjustment coefficient.

6. The hydraulic elevator triggering device according to claim 5, characterized in that: The reference temperature refers to the ambient temperature of the spring system under the design or calibration state, and the material thermal expansion coefficient refers to the change in unit length of the material under unit temperature change, reflecting the sensitivity of the material to temperature changes. The larger the value, the greater the amplitude of material expansion when heated or contraction when cooled.

7. The hydraulic elevator triggering device according to claim 1, characterized in that: The coefficient safety model is expressed as: ,in, represents the safety factor, Indicates the thickness adjustment factor.

8. The hydraulic elevator triggering device according to claim 5, characterized in that: The specific steps of the thickness determination module include: S401, constructing a thickness determination model through the current length information of the return spring B (4043), the current thickness information of the spring adjustment pad (4042), the ambient temperature of the return spring B (4043), the target pressure information, and the reference temperature information. The thickness determination model is expressed as: Indicates the thickness information of the spring adjustment pad (4042) that needs to be replaced. represents the thickness adjustment coefficient, Indicates the target pressure information. Indicates the current pressure information. represents the thermal expansion coefficient of the material, Indicates the length information of the current return spring B (4043). Indicates the current ambient temperature information. Indicates reference temperature information, Indicates the thickness information of the current spring adjustment pad (4042). Indicates the thrust adjustment item, represents the temperature compensation term; S402, receiving the judgment information formed by the judgment module, importing the thickness adjustment coefficient and the current thickness information of the spring adjustment pad (4042) into the thickness determination model to output the thickness information of the spring adjustment pad (4042) that needs to be replaced.

9. A hydraulic elevator, characterized in that: A hydraulic elevator triggering device as described in any one of claims 1 to 8 is adopted.

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