Hydraulic oil parameter and damping flow velocity testing device

Abstract

The utility model discloses a hydraulic oil parameter and damping flow velocity testing device. Comprising an outer cylinder, an inner cylinder, a first limiting part and a second limiting part, an axial cavity is formed in the outer cylinder, the right end of the cavity is an open end, the left end of the cavity is a blind end, and the middle of the cavity is provided with the first limiting part expanding inwards in the radial direction; the periphery is arranged on the left portion of the cavity, a flow channel parallel to the cavity is arranged on the periphery, and a control valve is arranged in the flow channel; the test cover is detachably connected with the right end of the cavity; the mandrel penetrates through the periphery and is coaxially arranged in the cavity; the two ends of the mandrel abut against the left end of the cavity and the test cover respectively. A second limiting part expanding outwards in the radial direction is arranged in the middle of the mandrel; and the damping valve assembly is arranged on the mandrel in a sleeving mode and abuts against the right end of the second limiting part, and the periphery of the damping valve assembly is in interference fit with the first limiting part. The beneficial effects of the utility model are that hydraulic oil parameters and damping flow velocity can be measured.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling tools, in particular to a hydraulic oil parameter and damping flow rate testing device. Background Art

[0002] Hydraulic jars are already very mature tools for oil drilling and workover. However, with the development of technology, new types of hydraulic oils are constantly appearing on the market. In order to find hydraulic oils that are more suitable for use with hydraulic jars, a hydraulic oil parameter and damping flow rate testing device has become the key to solving the problem. Utility Model Content

[0003] The purpose of the utility model is to provide a hydraulic oil parameter and damping flow rate testing device, which is provided with an outer cylinder, a periphery, a test cover, a core shaft and a damping valve assembly, and can measure the hydraulic oil parameters and damping flow rate through a pressure pump connecting hole, a pressure gauge connecting hole, a first temperature gauge connecting hole, a second temperature gauge connecting hole and a meter connecting hole.

[0004] To achieve the above objectives, the present invention adopts the following technical solutions, including:

[0005] An outer cylinder, wherein an axial cavity is provided inside, the right end of the cavity is an open end, the left end of the cavity is a blind end, and a first limiting portion that expands radially inward is provided in the middle of the cavity;

[0006] A peripheral edge is provided on the left side of the cavity, a flow channel parallel to the cavity is provided on the peripheral edge, and a control valve is provided in the flow channel;

[0007] a test cover detachably connected to the right end of the cavity and used to close the right end of the cavity; and

[0008] A mandrel passes through the periphery and is coaxially arranged in the cavity; two ends of the mandrel are respectively in contact with the left end of the cavity and the test cover; a second limit portion is provided in the middle of the mandrel and expands radially outward;

[0009] a damping valve assembly, which is sleeved on the spindle and abuts against the right end of the second limiting portion, and the outer periphery of the damping valve assembly is interference fit with the first limiting portion;

[0010] a first high-pressure sealing group, which is arranged between the periphery and the core shaft and is used for high-pressure sealing between the periphery and the core shaft;

[0011] Among them, the periphery and the damping valve assembly divide the cavity into a first high-pressure chamber, a second high-pressure chamber and a normal pressure chamber from left to right; a pressure pump connection hole, a pressure gauge connection hole and a first temperature gauge connection hole are radially arranged on the side wall of the first high-pressure chamber from left to right; a second temperature gauge connection hole and a meter connection hole are radially arranged on the side wall of the normal pressure chamber from left to right.

[0012] Preferably, the damping valve assembly comprises:

[0013] The valve body is sleeved on the core shaft and abuts against the right end of the second limit portion. A pair of valve holes parallel to the cavity are arranged on the valve body. The inner periphery of the valve body is connected to the core shaft through a second high-pressure sealing group with high pressure sealing. The outer periphery of the valve body is interference fit with the first limit portion.

[0014] A pair of valve cores are respectively arranged in the valve holes and matched with the valve holes, and spiral flow grooves are provided on the outer periphery of the valve cores.

[0015] Preferably, it also includes:

[0016] The fixing sleeve is sleeved on the rear part of the core shaft and is threadedly connected with the core shaft. The left end of the fixing sleeve abuts against the valve body.

[0017] Preferably, the method further comprises: a pair of radially arranged pin holes are provided at the front portion of the fixing sleeve, and pins pass through the pin holes to connect the fixing sleeve to the spindle, thereby preventing the fixing sleeve from being disengaged.

[0018] Preferably, it also includes:

[0019] a first countersunk hole, which is provided at the left end of the cavity, and the first countersunk hole is adapted to the left end of the mandrel;

[0020] a second countersunk hole, which is provided at the inner end of the test cover, and the second countersunk hole is adapted to the right end of the spindle;

[0021] Wherein, an internal thread is provided on the inner wall of the first countersunk hole; and an external thread is provided on the left end of the spindle which is adapted to the internal thread.

[0022] Preferably, the method further comprises: the test cover is connected to the right end of the cavity through threads.

[0023] Preferably, the first high-pressure sealing group includes:

[0024] Two first sealing ring mounting grooves are arranged on the inner periphery of the peripheral edge;

[0025] Two first high-pressure sealing rings are respectively arranged in the first sealing ring installation grooves, and are used to achieve high-pressure sealing connection between the periphery and the core shaft.

[0026] Preferably, the second high-pressure sealing group includes:

[0027] Two second sealing ring mounting grooves are provided on the outer periphery of the middle portion of the spindle;

[0028] Two second high-pressure sealing rings are respectively arranged in the second sealing ring installation grooves, and are used to achieve a high-pressure sealing connection between the valve body and the core shaft.

[0029] Preferably, an O-ring is provided between the test cover and the right end of the cavity.

[0030] Preferably, by replacing damping valve assemblies of different models, the influence of damping structures with different damping coefficients on the flow rate of the hydraulic oil can be tested.

[0031] The beneficial effects of the utility model are as follows: it is provided with an outer cylinder, a periphery, a test cover, a core shaft and a damping valve assembly, and can measure hydraulic oil parameters and damping flow rate through the pressure pump connection hole, the pressure gauge connection hole, the first temperature gauge connection hole, the second temperature gauge connection hole and the meter connection hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a cross-sectional view of a hydraulic oil parameter and damping flow rate testing device of the utility model.

[0033] Figure 2 It is a cross-sectional view of the outer cylinder in the present utility model.

[0034] Figure 3 It is a cross-sectional view of the central axis of the utility model.

[0035] Figure 4 This is an exploded view of the damping valve assembly in the present invention.

[0036] Figure 5 It is a three-dimensional diagram of the test cover in the present invention. DETAILED DESCRIPTION

[0037] The utility model is further described in detail below with reference to the accompanying drawings so that those skilled in the art can implement it according to the description.

[0038] It should be understood that terms such as “having”, “including” and “comprising” used herein do not exclude the existence or addition of one or other elements or combinations thereof.

[0039] like Figure 1-5 As shown, a hydraulic oil parameter and damping flow rate testing device 1 of the utility model includes:

[0040] The outer cylinder 110 has an axial cavity formed therein, the right end of the cavity is an open end, the left end of the cavity is a blind end, and a first limiting portion 114 that expands radially inward is provided in the middle of the cavity;

[0041] A peripheral edge 120 is provided on the left side of the cavity, a flow channel 121 parallel to the cavity is provided on the peripheral edge 120, and a control valve 122 is provided in the flow channel;

[0042] a test cover 130 detachably connected to the right end of the cavity and used to close the right end of the cavity; and

[0043] A mandrel 140 passes through the periphery 120 and is coaxially disposed in the cavity; two ends of the mandrel 140 abut against the left end of the cavity and the test cover 130 respectively; a second limiting portion 141 is provided in the middle of the mandrel 140 and expands radially outward;

[0044] The damping valve assembly 150 is sleeved on the spindle 140 and abuts the right end of the second limiting portion 141. The outer periphery of the damping valve assembly 150 is interference-fitted with the first limiting portion 114. As a preferred embodiment, the damping valve assembly 150 includes: a valve body 151, which is sleeved on the spindle 140 and abuts the right end of the second limiting portion 141. The valve body 151 is uniformly provided with a pair of valve holes 151a parallel to the cavity; the inner periphery of the valve body 151 is connected to the spindle 140 in a high-pressure sealing manner via a second high-pressure sealing group 170; the outer periphery of the valve body 151 is interference-fitted with the first limiting portion 114; and a pair of valve cores 152, which are respectively disposed in the valve holes 151a and adapted to the valve holes 151a. The outer periphery of the valve cores 152 is provided with a spiral flow groove 152a.

[0045] The first high-pressure sealing assembly 160 is disposed between the peripheral edge 120 and the core shaft 140 and is used for high-pressure sealing between the peripheral edge 120 and the core shaft 140. Preferably, the first high-pressure sealing assembly 160 includes: two first sealing ring mounting grooves 161 disposed on the inner periphery of the peripheral edge 120; and two first high-pressure sealing rings 162, each disposed in the first sealing ring mounting grooves 161, for achieving a high-pressure sealing connection between the peripheral edge 120 and the core shaft 140.

[0046] Among them, the periphery 120 and the damping valve assembly 150 divide the cavity into a first high-pressure chamber 111, a second high-pressure chamber 112 and a normal pressure chamber 113 from left to right; on the side wall of the first high-pressure chamber, a pressure pump connection hole 111a, a pressure gauge connection hole 111b and a first temperature gauge connection hole 111c are radially arranged from left to right; on the side wall of the normal pressure chamber 113, a second temperature gauge connection hole 113a and a meter connection hole 113b are radially arranged from left to right.

[0047] During use, the periphery 120 and the damping valve assembly 150 divide the chamber from left to right into a first high-pressure chamber 111, a second high-pressure chamber 112, and a normal-pressure chamber 113. When the control valve 122 is closed, the first high-pressure chamber 111 becomes a sealed hydraulic chamber. A pressure pump is connected via the pressure pump connection hole 111a to inject hydraulic oil into the first high-pressure chamber 111. A pressure gauge and a first thermometer are connected via the pressure gauge connection hole 111b and the first thermometer connection hole 111c, respectively, to measure pressure and temperature. When the control valve 122 is opened, a second thermometer and a meter are connected via the second thermometer connection hole 113a and the meter connection hole 113b, respectively, to measure the flow of hydraulic oil through the damping valve assembly 150. The temperature changes under different pressure drops and the flow rate of hydraulic oil through the damping valve assembly 150 at different temperatures are measured.

[0048] In another embodiment, the damping valve assembly 150 includes: a valve body 151, which is sleeved on the core shaft 140 and abuts against the right end of the second limiting portion 141, and a pair of valve holes 151a parallel to the cavity are evenly distributed on the valve body 151; the inner periphery of the valve body 151 is connected to the core shaft 140 through a second high-pressure sealing group 170 for high-pressure sealing; the outer periphery of the valve body 151 is interference fit with the first limiting portion 114; a pair of valve cores 152, which are respectively arranged in the valve holes 151a and adapted to the valve holes 151a, and a spiral flow groove 152a is provided on the outer periphery of the valve core 152.

[0049] In another embodiment, the valve body 150 further includes a fixing sleeve 180 which is sleeved on the rear of the spindle 140 and is threadedly connected to the spindle 140 . The left end of the fixing sleeve 180 abuts against the valve body 151 .

[0050] In another embodiment, a pair of radially arranged pin holes 181 are provided at the front of the fixing sleeve 180 , and pins 182 pass through the pin holes 181 to connect the fixing sleeve 180 to the spindle 140 , thereby preventing the fixing sleeve 180 from being disengaged.

[0051] In another embodiment, it also includes: a first countersunk hole 115, which is arranged at the left end of the cavity, and the first countersunk hole 115 is adapted to the left end of the spindle 140; a second countersunk hole 131, which is arranged at the inner end of the test cover 130, and the second countersunk hole 131 is adapted to the right end of the spindle 140; wherein, an internal thread is provided on the inner wall of the first countersunk hole 115; and an external thread adapted to the internal thread is provided at the left end of the spindle 140.

[0052] In another embodiment, the test cover 130 is further connected to the right end of the cavity via threads.

[0053] In another embodiment, the first high-pressure sealing group 160 includes: two first sealing ring installation grooves 161, which are arranged on the inner periphery of the periphery 120; two first high-pressure sealing rings 162, which are respectively arranged in the first sealing ring installation grooves 161, for realizing a high-pressure sealing connection between the periphery 120 and the core shaft 140.

[0054] In another embodiment, the second high-pressure sealing group 170 includes: two second sealing ring mounting grooves 171, which are arranged on the outer periphery of the middle part of the core shaft 140; two second high-pressure sealing rings 172, which are respectively arranged in the second sealing ring mounting grooves 171, for realizing a high-pressure sealing connection between the valve body 151 and the core shaft 140.

[0055] In another embodiment, an O-ring 132 is provided between the test cover 130 and the right end of the cavity.

[0056] In another embodiment, the influence of damping structures with different damping coefficients on the flow rate of the hydraulic oil can be tested by replacing the damping valve assembly 150 with a different model.

[0057] In summary, the utility model provides a hydraulic oil parameter and damping flow rate testing device 1, which is provided with an outer cylinder 110, a periphery 120, a test cover 130, a core shaft 140 and a damping valve assembly 150, and can measure the hydraulic oil parameters and damping flow rate through the pressure pump connecting hole 111a, the pressure gauge connecting hole 111b, the first temperature gauge connecting hole 111c, the second temperature gauge connecting hole 113a and the meter connecting hole 113b.

[0058] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A hydraulic oil parameter and damping flow rate testing device, characterized in that: include: An outer cylinder, wherein an axial cavity is provided inside, the right end of the cavity is an open end, the left end of the cavity is a blind end, and a first limiting portion that expands radially inward is provided in the middle of the cavity; A peripheral edge is provided on the left side of the cavity, a flow channel parallel to the cavity is provided on the peripheral edge, and a control valve is provided in the flow channel; a test cover detachably connected to the right end of the cavity and used to close the right end of the cavity; and A mandrel passes through the periphery and is coaxially arranged in the cavity; two ends of the mandrel are respectively in contact with the left end of the cavity and the test cover; a second limit portion is provided in the middle of the mandrel and expands radially outward; a damping valve assembly, which is sleeved on the spindle and abuts against the right end of the second limiting portion, and the outer periphery of the damping valve assembly is interference fit with the first limiting portion; a first high-pressure sealing group, which is arranged between the periphery and the core shaft and is used for high-pressure sealing between the periphery and the core shaft; Among them, the periphery and the damping valve assembly divide the cavity into a first high-pressure chamber, a second high-pressure chamber and a normal pressure chamber from left to right; a pressure pump connection hole, a pressure gauge connection hole and a first temperature gauge connection hole are radially arranged on the side wall of the first high-pressure chamber from left to right; a second temperature gauge connection hole and a meter connection hole are radially arranged on the side wall of the normal pressure chamber from left to right.

2. The hydraulic oil parameter and damping flow rate testing device according to claim 1, characterized in that: The damping valve assembly includes: The valve body is sleeved on the core shaft and abuts against the right end of the second limit portion. A pair of valve holes parallel to the cavity are arranged on the valve body. The inner periphery of the valve body is connected to the core shaft through a second high-pressure sealing group with high pressure sealing. The outer periphery of the valve body is interference fit with the first limit portion. A pair of valve cores are respectively arranged in the valve holes and matched with the valve holes, and spiral flow grooves are provided on the outer periphery of the valve cores.

3. The hydraulic oil parameter and damping flow rate testing device according to claim 2, characterized in that: Also includes: The fixing sleeve is sleeved on the rear part of the core shaft and is threadedly connected with the core shaft. The left end of the fixing sleeve abuts against the valve body.

4. The hydraulic oil parameter and damping flow rate testing device according to claim 3, characterized in that: Also includes: A pair of radially arranged pin holes are provided at the front portion of the fixing sleeve, and pins pass through the pin holes to connect the fixing sleeve with the spindle, thereby preventing the fixing sleeve from being disengaged.

5. The hydraulic oil parameter and damping flow rate testing device according to claim 3, characterized in that: Also includes: a first countersunk hole, which is provided at the left end of the cavity, and the first countersunk hole is adapted to the left end of the mandrel; a second countersunk hole, which is provided at the inner end of the test cover, and the second countersunk hole is adapted to the right end of the spindle; Wherein, an internal thread is provided on the inner wall of the first countersunk hole; and an external thread is provided on the left end of the spindle which is adapted to the internal thread.

6. The hydraulic oil parameter and damping flow rate testing device according to claim 3, characterized in that: The test cover is connected to the right end of the cavity through threads.

7. The hydraulic oil parameter and damping flow rate testing device according to claim 1, characterized in that: The first high-pressure sealing group includes: Two first sealing ring mounting grooves are arranged on the inner periphery of the peripheral edge; Two first high-pressure sealing rings are respectively arranged in the first sealing ring installation grooves, and are used to achieve high-pressure sealing connection between the periphery and the core shaft.

8. The hydraulic oil parameter and damping flow rate testing device according to claim 2, characterized in that: The second high-pressure sealing group includes: Two second sealing ring mounting grooves are provided on the outer periphery of the middle portion of the spindle; Two second high-pressure sealing rings are respectively arranged in the second sealing ring installation grooves, and are used to achieve a high-pressure sealing connection between the valve body and the core shaft.

9. The hydraulic oil parameter and damping flow rate testing device according to claim 6, characterized in that: An O-type sealing ring is provided between the test cover and the right end of the cavity.

10. The hydraulic oil parameter and damping flow rate testing device according to claim 1, characterized in that: By replacing different types of damping valve assemblies, the influence of damping structures with different damping coefficients on the flow rate of hydraulic oil can be tested.

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