Tension and compression test rack for jar knocker

Abstract

The utility model discloses a jar pulling and pressing test rack, and relates to the technical field of petroleum drilling tool testing tools, the jar pulling and pressing test rack comprises a plurality of clamping shafts arranged in a V shape and a push-pull assembly coaxially arranged at one end of each clamping shaft, the clamping shafts are connected into a whole through a first support, and each clamping shaft is provided with a plurality of annular clamping grooves at equal intervals in the axial direction; the output end of the push-pull assembly is connected with a first connector, the first connector is connected to one end of the jar in a clamped mode, the pressing connection block is vertically connected to the annular clamping grooves in the same positions of the clamping shafts in a clamped mode, and the second connector is connected with the other end of the jar. A plurality of annular clamping grooves are formed in the clamping shaft at equal intervals in the axial direction, so that adaptive tension and compression experiments of different specifications of jar knockers are realized; by arranging the pull rope and the packaging assemblies, the packaging assemblies on the two sides are triggered by means of the action of the clamping plate piece on the pull rope, and top sealing of the jar in the V-shaped structure of the clamping shaft is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of oil drilling tool testing tools, in particular to a jar tensile test frame. BACKGROUND

[0002] In drilling operations, the jar is a key tool designed to solve the problems of sticking and sticking in the drilling process by generating strong impact force, thereby improving drilling efficiency and ensuring smooth operation. However, to fully utilize the effectiveness of the jar and create greater economic benefits for it in the drilling industry, routine maintenance is particularly important. Because the jar works in a complex and variable downhole environment for a long time, it will be affected by many adverse factors such as high temperature, high pressure, corrosive liquid, and often needs to withstand a large impact force. These factors often cause the jar to rust or stick during use. Once the jar fails, it will not only affect the progress of drilling operations, but also may cause serious economic losses and safety hazards. Therefore, sufficient attention must be paid to the routine maintenance and inspection of the jar. Through regular maintenance, potential faults can be found and handled in time to extend the service life of the jar.

[0003] The existing jar tensile and compressive experimental device cannot be flexibly positioned according to the actual length of the jar, which limits the adaptability of the experimental device to different specifications of the jar. The loading and unloading process of these devices is relatively complex, increasing the operation difficulty and time cost; although some experimental devices are equipped with limiting structures for positioning and have certain positioning function, the fixing effect of the jar after positioning is not ideal, which is easy to cause loosening during the experiment, thereby affecting the accuracy and reliability of the experimental results. SUMMARY

[0004] The device provides a jar tensile test frame, and the specific implementation manner is as follows:

[0005] A jar tensile test frame comprises:

[0006] A plurality of clamping shafts arranged in a V shape, each clamping shaft is connected as a whole through a first support, and the clamping shaft is provided with a plurality of annular clamping grooves at equal intervals along its axial direction;

[0007] A push-pull assembly coaxially arranged at one end of the clamping shaft, the output end of the push-pull assembly is connected with a first connector, and the first connector is clamped at one end of the jar;

[0008] A clamping plate member composed of a second connector and a pressing block, the pressing block is vertically clamped in the annular clamping groove at the same position of each clamping shaft, and the second connector is connected with the other end of the jar, and the adaptability tensile and compressive experiments of different specifications of the jar are realized by adjusting the pressing block to be clamped in the annular clamping groove at different positions.

[0009] The above technical scheme realizes accurate lateral positioning of the jar, relies on a series of multiple clamping shafts arranged in a V shape, the clamping shafts are reasonably arranged, and the stability and accuracy of the jar in the test process are ensured; further, in order to improve the compatibility and practicability of the equipment, a plurality of carefully carved annular clamping grooves are arranged on each clamping shaft along the axial direction at equal intervals, the clamping groove arrangement is uniform, and the clamping grooves provide an adaptive interface for jars of different specifications and different models, thereby realizing efficient and reliable tension and compression experiments on various jars, not only enhancing the multifunctionality of the equipment, but also significantly improving the efficiency and accuracy of the experiments, and providing strong support for performance testing and quality control of the jar.

[0010] Preferably, it further comprises a packaging assembly rotatably connected to the top clamping shaft, which is an integrated structure composed of a rotating ring and a pressing plate;

[0011] The packaging assembly is symmetrically arranged at both ends of the overall V-shaped structure of the clamping shaft, and a pull rope is arranged between the two pressing plates and the bottom clamping shaft.

[0012] Based on the above technical scheme, by configuring the pull rope and the packaging assembly and combining the action of the clamping plate, the top packaging of the jar in the V-shaped clamping shaft structure is realized, and the rigors and efficiency of the experiment process are ensured; specifically, the pull rope is arranged and connected to the packaging assembly, and the clamping plate is arranged at a proper position, so that when acting on the pull rope, the clamping plate can accurately trigger the two-sided packaging assembly to act.

[0013] Preferably, the rotating ring is half-opened on one side, rotatably connected to the annular clamping groove, and the end of the pull rope is connected to the inner side of the pressing plate.

[0014] Preferably, each annular clamping groove is provided with a packaging assembly, and the coaxial pressing plates are connected by a connecting rod.

[0015] Preferably, the pressing plate is eccentrically provided with a counterweight on the side opposite to the clamping plate.

[0016] Based on the above technical scheme, by arranging the counterweight in the pressing plate in an eccentric manner, the pressing plate can naturally present an open posture to the two sides in the state without the intervention of the clamping plate, thereby greatly facilitating the subsequent installation process of the clamping plate and the jar, and significantly improving the smoothness and efficiency of the operation; further, the single-sided all pressing plates are tightly connected as a whole by the connecting rod, and this connection mode not only enhances the stability of the pressing plate structure, but also ensures the stability and reliability of the pressing plate in various operating states.

[0017] Preferably, the push-pull assembly comprises an oil cylinder and a second support for mounting the oil cylinder, and the air arm end of the oil cylinder is connected to the first joint through a sliding seat.

[0018] Preferably, a telescopic rod is arranged between the sliding seat, the second support and the end first support.

[0019] Preferably, a notch groove is arranged on the top of the first joint for laterally inserting the end of the jar.

[0020] Based on the above technical scheme, by adding the telescopic rod, the stability of the second support in reciprocating motion along the axial direction during the operation of the telescopic arm of the oil cylinder is improved, not only the stability of the whole system is significantly enhanced, but also the high stability and accuracy of the second support in each action of the telescopic arm in extension and contraction is ensured.

[0021] Preferably, the bottom end of the crimping block is provided with an arc surface corresponding to the annular clamping groove.

[0022] Preferably, the water cap is provided with an assembly hole connected with a driving source.

[0023] In summary, the present application has the following beneficial technical effects:

[0024] 1. In the utility model, the lateral positioning of the jar is realized by arranging the V-shaped clamping shafts, and the adaptability of the jar to the tension and compression experiment is realized by arranging the annular clamping grooves on the clamping shafts at equal intervals along the axial direction.

[0025] 2. In the utility model, the top sealing of the jar in the V-shaped structure of the clamping shaft is realized by arranging the pull rope and the packaging assembly and triggering the packaging assemblies on both sides by the clamping plate, which not only simulates the closed state of the jar in operation, but also prevents the jar from jumping laterally during the experiment.

[0026] 3. The utility model has a simple structure, and the counterweight is arranged eccentrically in the pressing plate to realize the opening of the pressing plate to both sides in the state without the clamping plate, which provides convenience for the installation of the clamping plate and the jar, and the connecting rod connects the single-sided pressing plates into a whole. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic diagram of the utility model;

[0028] Figure 2 is a front view structural schematic diagram of the utility model;

[0029] Figure 3 is an enlarged schematic diagram of the front end of the utility model; Figure 1

[0030] Figure 4 is an enlarged schematic diagram of the rear end of the utility model; Figure 1

[0031] Figure 5 ​​is the explosion structure schematic view of the packaging assembly and the clamping plate piece in the utility model;

[0032] Figure 6 is the right view structure schematic view of the packaging assembly and the clamping plate piece in the utility model;

[0033] Figure 7 is the structure schematic view of the packaging assembly and the clamping plate piece in the utility model.

[0034] Mark explanation:

[0035] 1, push-pull assembly, 2, packaging assembly, 3, first support, 4, clamping shaft, 5, first joint, 6, pull rope, 7, connecting rod, 8, jar, 9, clamping plate piece,

[0036] 101, second support, 102, oil cylinder, 103, sliding seat, 104, telescopic rod, 201, rotating ring, 202, pressing plate, 401, annular clamping groove, 501, notch groove, 901, second joint, 902, pressure block, 903, arc face. Specific implementation

[0037] The specific implementation of the utility model will be described below in combination with the drawings and examples:

[0038] It should be noted that the structure, proportion, size, etc. shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification for understanding and reading by those skilled in the art, and are not used to limit the implementation conditions of the utility model. Any modification of structure, change of proportion relationship or adjustment of size, which does not affect the functions and purposes of the utility model, should still fall within the scope of the disclosed technology.

[0039] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in the present specification are only for the convenience of clear description, and are not used to limit the scope of the utility model. Change or adjustment of relative relationship without substantial change of technical content is also considered as the scope of the utility model.

[0040] The following will be described in combination with the drawings Figures 1-7 The present application will be further described in detail.

[0041] The utility model discloses a jar pull test frame.

[0042] Example 1

[0043] Reference Figures 1 to 4The embodiment discloses a jar pull test frame, which comprises a clamping plate 9, three clamping shafts 4 arranged in a V shape and a push-pull assembly 1 coaxially arranged at one end of the clamping shaft 4, each clamping shaft 4 is connected into an integrated body through a first support 3, and a plurality of annular clamping grooves 401 are equidistantly arranged along the axial direction of the clamping shaft 4, the output end of the push-pull assembly 1 is connected with a first joint 5, and the first joint 5 is clamped at one end of a jar 8, the clamping plate 9 is composed of a second joint 901 and a press block 902 in the structure, the press block 902 is vertically clamped in the annular clamping groove 401 at the same position of each clamping shaft 4, and the second joint 901 is connected with the other end of the jar 8, and the adaptability pull and pressure test of jars 8 of different specifications is realized by adjusting the press block 902 to be clamped in the annular clamping groove 401 at different positions.

[0044] The push-pull assembly 1 comprises an oil cylinder 102 and a second support 101 for mounting the oil cylinder 102, the air arm end of the oil cylinder 102 is connected with the first joint 5 through a sliding seat 103, and a telescopic rod 104 is arranged between the sliding seat 103, the second support 101 and the first support 3 at the end in the structure, a notch groove 501 is formed in the top of the first joint 5 and extends upward, the notch groove 501 is used for laterally inserting the end of the jar 8, and the bottom end of the press block 902 is provided with an arc surface 903 corresponding to the annular clamping groove 401.

[0045] Specific implementation process is as follows: before the test, one end of the jar is connected with the second joint 901; then the jar body is placed into the three clamping shafts 4 arranged in a V shape from the top; at this time, the other end of the jar is laterally clamped into the notch groove 501 of the first joint 5, and the press block 902 is laterally clamped into the annular clamping groove 401; the oil cylinder 102 is started, and the axial pull test of the jar is realized.

[0046] Embodiment 2

[0047] Reference Figures 1 to 7 Based on the above embodiment, the embodiment further discloses a jar pull test frame, further comprising an encapsulation assembly 2 rotatably connected to the top clamping shaft 4, which is an integrated structure composed of a rotating ring 201 and a pressing plate 202, the encapsulation assembly 2 is symmetrically arranged at both ends of the overall V-shaped structure of the clamping shaft 4, and a pull rope 6 is arranged between the two pressing plates 202 and the bottom clamping shaft 4, the rotating ring 201 is half-opened on one side in the structure, is rotatably connected to the annular clamping groove 401, and the end of the pull rope 6 is connected to the inner side of the pressing plate 202.

[0048] Each annular clamping groove 401 is provided with the encapsulation assembly 2, and the coaxial pressing plates 202 are connected through a connecting rod 7, the pressing plate 202 is eccentrically provided with a counterweight in the inner side of the pressing plate 202, which is opposite to one side of the clamping plate 9, both ends of the pull rope 6 are positioning strips, the inner side of the pressing plate 202 is provided with a gap through which the positioning strips are transversely inserted, and the positioning strips are vertically arranged after the pressing plate 202 is inserted into the gap, so that the pull rope 6 is quickly installed on the pressing plate 202.

[0049] The specific implementation process is that in the process of placing the shock absorber body into the three clamping shafts 4 arranged in a V shape from the top, the pressing block 902 acts on the pull rope 6, the pull rope 6 pulls the pressing plate 202 at both ends; the pressing plate 202 is turned inward with the clamping shaft 4 as the center, and the end of the pressing plate 202 acts on the top side of the shock absorber body to realize top sealing.

[0050] Many other changes and modifications can be made to the application without departing from the spirit and scope of the application. It should be understood that the application is not limited to the specific embodiments described herein, but only limited by the claims.

Claims

1. A jar puller test stand characterized by, The utility model relates to a kind of experimental device for the adaptability of shock absorber, including: Several clamping shafts (4) are arranged in V shape, each clamping shaft (4) is integrated by first support (3), and the clamping shaft (4) is equidistantly provided with several annular clamping grooves (401) along its axial direction; Push-pull assembly (1) is coaxially arranged at one end of the clamping shaft (4), the output end of the push-pull assembly (1) is connected with first joint (5), and the first joint (5) is connected with one end of the shock absorber (8); The clamping plate piece (9) is composed of second joint (901) and compression block (902), the compression block (902) is vertically connected with the annular clamping groove (401) at the same position of each clamping shaft (4), and the second joint (901) is connected with the other end of the shock absorber (8), and the adaptability of the shock absorber (8) of different specifications is realized by adjusting the compression block (902) to be clamped into the annular clamping groove (401) at different positions.

2. A ram press for testing a bumper as defined in claim 1, wherein It also includes a packaging assembly (2) rotatably connected to the top clamping shaft (4), which is an integrated structure composed of a rotating ring (201) and a pressing plate (202); The packaging assembly (2) is symmetrically arranged at both ends of the overall V-shaped structure of the clamping shaft (4), and a pull rope (6) is arranged between the two pressing plates (202) and the bottom clamping shaft (4).

3. A ram press for a bumper hanger as defined in claim 2, wherein, The rotating ring (201) is half-open on one side, and is rotatably connected to the annular clamping groove (401), and the end of the pull rope (6) is connected to the inner side of the pressing plate (202).

4. A ram press for testing a bumper as defined in claim 1 wherein, The push-pull assembly (1) includes a oil cylinder (102) and a second support (101) for mounting the oil cylinder (102), and the air arm end of the oil cylinder (102) is connected to the first joint (5) through a sliding seat (103).

5. A ram press for a bumper hanger as defined in claim 4 wherein, The sliding seat (103), the second support (101) and the end first support (3) are provided with a telescopic rod (104).

6. A ram press for a bumper hanger as defined in claim 4 wherein, The first joint (5) is provided with a notch groove (501) at the top for laterally inserting the end of the shock absorber (8).

7. A ram press for a bumper hanger as defined in claim 3 wherein, Each annular clamping groove (401) is provided with the packaging assembly (2), and the coaxial pressing plates (202) are connected by a connecting rod (7).

8. A ram press for a bumper hanger as defined in claim 1, wherein, The bottom of the compression block (902) is provided with an arc surface (903) corresponding to the annular clamping groove (401).

9. A ram press for a bumper hanger as defined in claim 7 wherein, The inner side of the pressing plate (202) is eccentrically provided with a counterweight on one side of the clamping plate piece (9).

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