Tool for testing spray angle of nozzle

Abstract

The utility model discloses a nozzle spray angle test tool comprising a support plate, the bottom of which is provided with support legs, the support plate is provided with a through hole, the through hole is internally provided with a support step, and the support plate is provided with a through groove; the turntable is coaxially and rotatably embedded into the through hole; the positioning piece is fixedly arranged on the bottom surface of the turntable; the first driving assembly is arranged on the top surface of the supporting plate and is in transmission connection with the turntable; the test clamping needles are symmetrically arranged on the two sides of the rotating disc and penetrate through the through grooves in a one-to-one correspondence mode; the second driving mechanisms are arranged on the top surface of the supporting plate and are in transmission connection with the testing clamping needles in a one-to-one correspondence manner; and the measuring assembly is arranged on the test card needle. The testing tool is simple in structure, convenient to operate, accurate in measurement and high in testing efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of nozzle detection, in particular to a nozzle spray angle testing tool. Background Art

[0002] The nozzle is an important part of the gas engine, and its performance directly affects the performance of the gas engine. After the nozzle is processed and formed, the spray angle of its nozzle needs to be tested to verify whether its performance meets the requirements. The conical spray spray from the nozzle needs to be tested at all angles within 360 degrees, and the detection operation is very troublesome. For this reason, a nozzle spray angle test tool with accurate detection and convenient operation is designed. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desired to provide a nozzle spray angle test tool with simple structure, convenient operation, accurate measurement and high testing efficiency.

[0004] The utility model provides a nozzle spray angle test tool, comprising:

[0005] A support plate, with legs at the bottom, a through hole formed on the support plate, a support step formed in the through hole, through grooves symmetrically formed on both sides of the through hole, and the through grooves are all arranged along the radial direction of the through hole;

[0006] A turntable coaxially and rotatably embedded in the through hole;

[0007] A positioning member, fixedly arranged on the bottom surface of the rotating disk, used for fixing and installing the nozzle and making the nozzle orifice axis coincide with the axis of the rotating disk;

[0008] A first driving assembly, disposed on the top surface of the support plate, is drivingly connected to the turntable and is used to drive the turntable to rotate;

[0009] Test pins are symmetrically arranged on both sides of the turntable, and the test pins pass through the through slots one by one, so as to locate the edge of the spray angle to be detected;

[0010] A second driving mechanism, disposed on the top surface of the support plate, is in driving connection with the test card needles in a one-to-one correspondence, and is used to drive the test card needles to move radially along the turntable;

[0011] The measuring component is arranged on the test card needle and is used to measure the moving dimension of the test card needle.

[0012] Furthermore, the positioning member includes a connecting seat, which is fixedly mounted on the bottom of the turntable by a positioning pin and a first screw. A mounting plate is fixedly provided on one side of the connecting seat, and an avoidance hole is opened on the mounting plate. The nozzle is fixedly mounted on the mounting plate by a second screw.

[0013] Furthermore, the first driving assembly includes a first bracket fixedly arranged on the top surface of the support plate, a sleeve coaxial with the turntable is fixedly arranged on the first bracket, a driving shaft is rotatably sleeved on the sleeve, a transmission seat is fixedly arranged on the top surface of the turntable, the top end of the driving shaft is fixedly connected to a driving handle, and the bottom end is fixedly connected to the transmission seat through a transmission rod, an angle disk is fixedly sleeved on the top end of the sleeve, an angle scale is arranged on the top surface of the angle disk, and a scale pointer extending toward the angle disk is fixedly arranged on the bottom of the driving handle.

[0014] Furthermore, the test card needle includes a vertical section and a horizontal section fixedly connected to the bottom end of the vertical section, the vertical section passes through the corresponding through slot, the horizontal section extends toward the axis of the turntable, and a positioning tip is provided at one end of the horizontal section close to the axis of the turntable.

[0015] Furthermore, the second driving mechanism includes a second bracket fixedly arranged on the top surface of the turntable and located at both ends of the through groove, a parallel lead screw and a guide rod are arranged between the two second brackets, the lead screw is arranged along the radial direction of the turntable, and its two ends are rotatably connected to the second bracket through bearings, one end of the lead screw is fixedly connected with a knurled end, a fixing sleeve located at the outer periphery of the lead screw is fixedly arranged on the second bracket, and a top screw for locking and fixing the lead screw is arranged on the fixing sleeve; the test card needle is threadedly sleeved with the lead screw and slidably sleeved with the guide rod.

[0016] Furthermore, the measuring assembly includes a measuring scale and a reference plate; the measuring scale is fixedly arranged on the test card needle and is a dial indicator or a micrometer; the reference plate is fixedly arranged on the support plate or the second driving mechanism and is located on a side of the measuring scale close to the turntable; the measuring end of the measuring scale rests on the reference plate in the horizontal direction.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The test fixture of the utility model is provided with a support plate, a turntable, a positioning piece, a first drive assembly, a test pin, a second drive mechanism and a measuring assembly; when testing the spray angle of the nozzle, first fix the nozzle to the positioning piece, then connect the nozzle to the tester, inject the high-pressure test medium into the nozzle through the tester, and the high-pressure test medium is ejected through the nozzle of the nozzle to form a spray angle. At this time, the test pin is driven to move by the second drive mechanism to position it to the edge of the spray angle, and then the size of the test pin movement displayed by the measuring assembly is observed to obtain the spray angle at the angle. Then, the turntable is driven to rotate a certain angle each time by the first drive assembly, and the spray angle is measured to obtain the spray angle data of the nozzle. The test fixture of the present application has a simple structure, convenient operation, accurate measurement and high testing efficiency.

[0019] It should be understood that the contents described in the utility model summary are not intended to limit the key or important features of the embodiments of the utility model, nor are they intended to limit the scope of the utility model. Other features of the utility model will become easy to understand through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0021] Figure 1 This is a schematic diagram of the structure of the nozzle spray angle test fixture.

[0022] Numbers in the figure: 1, support plate; 2, turntable; 3, positioning member; 4, first drive assembly; 5, test needle; 6, second drive mechanism; 7, measurement assembly; 8, nozzle;

[0023] 11. Leg; 12. Through hole; 13. Support step; 14. Through slot;

[0024] 31. Connecting seat; 32. First screw; 33. Mounting plate; 34. Second screw;

[0025] 41. first bracket; 42. sleeve; 43. drive shaft; 44. transmission seat; 45. drive handle; 46. transmission rod; 47. angle plate; 48. scale pointer;

[0026] 51. vertical section; 52. horizontal section; 53. positioning tip;

[0027] 61. second bracket; 62. lead screw; 63. guide rod; 64. knurled end; 65. fixing sleeve; 66. top screw;

[0028] 71. Measuring table; 72. Reference plate. DETAILED DESCRIPTION

[0029] The utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It is understood that the specific embodiments described herein are only used to explain the relevant utility model, rather than to limit the utility model. It is also necessary to explain that, for the convenience of description, only the parts related to the utility model are shown in the accompanying drawings.

[0030] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] Please refer to Figure 1 , an embodiment of the utility model provides a nozzle spray angle test tool, comprising:

[0032] A support plate 1 is provided with a support leg 11 at the bottom thereof, a through hole 12 is provided on the support plate 1, a support step 13 is provided in the through hole 12, through grooves 14 are symmetrically provided on both sides of the through hole 12 on the support plate 1, and the through grooves 14 are all provided along the radial direction of the through hole 12;

[0033] The turntable 2 is coaxially rotatably embedded in the through hole 12;

[0034] The positioning member 3 is fixedly arranged on the bottom surface of the rotating disk 2, and is used to fix the nozzle 8 and make the nozzle axis of the nozzle 8 coincide with the axis of the rotating disk 2;

[0035] The first driving assembly 4 is arranged on the top surface of the supporting plate 1 and is in driving connection with the turntable 2 to drive the turntable 2 to rotate;

[0036] The test pins 5 are symmetrically arranged on both sides of the turntable 2. The test pins 5 pass through the through slots 14 one by one, and are used to locate the edge of the spray angle to be detected.

[0037] The second driving mechanism 6 is disposed on the top surface of the support plate 1 and is in one-to-one transmission connection with the test card needles 5, and is used to drive the test card needles 5 to move along the radial direction of the turntable 2;

[0038] The measuring component 7 is disposed on the test card pin 5 and is used to measure the moving dimension of the test card pin 5 .

[0039] In this embodiment, when the spray angle of the nozzle 8 is tested, it is first positioned and installed by the positioning member 3, and then the inlet end of the nozzle is connected to the tester; then the initial position of the test needle 5 is adjusted by the second driving mechanism 6, and then the measuring component 7 is zeroed.

[0040] At this time, the high-pressure test medium is injected into the nozzle 8 through the tester, and the high-pressure test medium is sprayed out through the nozzle of the nozzle 8 to form a spray angle. Then the test needle 5 is driven to move by the second drive mechanism 6 to position it to the edge of the spray angle, and the size of the movement of the test needle 5 displayed by the measuring component 7 is observed to obtain the spray angle at this time. Then the turntable 2 is driven to rotate a certain angle each time by the first drive component 4, and the corresponding spray angle after each rotation is measured, so as to obtain all the spray angle data of the nozzle 8 and complete the nozzle 8 test. The test fixture of the present application has a simple structure, convenient operation, accurate measurement and high testing efficiency.

[0041] In a preferred embodiment, if Figure 1 As shown, the positioning member 3 includes a connecting seat 31, which is fixedly mounted on the bottom of the turntable 2 by a positioning pin and a first screw 32. A mounting plate 33 is fixedly provided on one side of the connecting seat 31, and an avoidance hole is opened on the mounting plate 33. The nozzle 8 is fixedly mounted on the mounting plate 33 by a second screw 34.

[0042] In this embodiment, when positioning and installing the nozzle 8, the positioning member 3 is first removed, and then the inlet end of the nozzle 8 is passed through the avoidance hole, and the nozzle 8 is fixedly connected to the mounting plate 33 by the second screw 34; then the nozzle 8 is positioned and fixed to the bottom of the turntable 2 by the positioning pin and the first screw 32, thereby achieving the positioning and fixation of the nozzle 8. The nozzle 8 is easy to install and accurately positioned, thereby ensuring the accuracy of the nozzle 8 test.

[0043] In a preferred embodiment, if Figure 1 As shown, the first driving assembly 4 includes a first bracket 41 fixedly arranged on the top surface of the support plate 1, a sleeve 42 coaxial with the turntable 2 is fixedly arranged on the first bracket 41, a driving shaft 43 is rotatably sleeved on the sleeve 42, a transmission seat 44 is fixedly arranged on the top surface of the turntable 2, a driving handle 45 is fixedly connected to the top end of the driving shaft 43, and the bottom end is fixedly connected to the transmission seat 44 through a transmission rod 46, an angle disk 47 is fixedly sleeved on the top end of the sleeve 42, an angle scale is arranged on the top surface of the angle disk 47, and a scale pointer 48 extending toward the angle disk 47 is fixedly arranged on the bottom of the driving handle 45.

[0044] In this embodiment, when the spray angle of the nozzle 8 is tested, the driving handle 45 is used to rotate the driving shaft 43 to drive the turntable 2 to rotate, thereby driving the nozzle 8 to rotate, and then measuring the spray angle at various angles of the nozzle 8. The rotation angle of the nozzle 8 can be controlled by the cooperation of the angle disk 47 and the scale pointer 48, which is convenient to operate and ensures the accuracy of the nozzle 8 test.

[0045] In a preferred embodiment, if Figure 1As shown, the test needle 5 includes a vertical section 51 and a horizontal section 52 fixedly connected to the bottom end of the vertical section 51, the vertical section 51 passes through the corresponding through slot 14, the horizontal section 52 extends toward the axis of the turntable 2, and a positioning tip 53 is provided at one end of the horizontal section 52 close to the axis of the turntable 2.

[0046] In this embodiment, when measuring the spray angle, the test needle 5 is first adjusted to the initial position, at which time the tip of the positioning tip 53 is located at the edge of the standard spray angle. Then the test needle 5 is driven to move by the second driving mechanism 6, so that the tip of the positioning tip 53 is located at the edge of the actual spray angle, and the value of the measuring component 7 is checked, which is the deviation value between the actual spray angle and the standard spray angle. The operation is convenient and the measurement is accurate.

[0047] In a preferred embodiment, if Figure 1 As shown, the second driving mechanism 6 includes a second bracket 61 fixedly arranged on the top surface of the turntable 2 and located at both ends of the through groove 14, a parallel lead screw 62 and a guide rod 63 are arranged between the two second brackets 51, the lead screw 62 is arranged along the radial direction of the turntable 2, and its two ends are rotatably connected to the second bracket 61 through bearings, one end of the lead screw 62 is fixedly connected with a knurled end 64, a fixing sleeve 65 located on the outer periphery of the lead screw 62 is fixedly arranged on the second bracket 61, and a top screw 66 for locking and fixing the lead screw 62 is arranged on the fixing sleeve 65; the test card needle 5 is threadedly sleeved with the lead screw 62 and slidably sleeved with the guide rod 63.

[0048] In this embodiment, when measuring the spray angle, firstly, the knurled end 64 is rotated to drive the lead screw 62 to rotate, thereby driving the test needle 5 to move, and the position of the test needle 5 is adjusted by a measuring tool (such as a caliper) in conjunction with a fixed position on the test fixture or a specially set reference block, so that the test needle 5 moves to the initial position. Then, the lead screw 62 is locked and fixed by the top screw 66, and then the measuring component 7 is zeroed. After loosening the top screw 66, the spray angle can be tested, which is convenient to operate and has high test efficiency.

[0049] In a preferred embodiment, if Figure 1 As shown, the measuring assembly 7 includes a measuring gauge 71 and a reference plate 72; the measuring gauge 71 is fixedly disposed on the test card needle 5, and is a dial gauge or a micrometer; the reference plate 72 is fixedly disposed on the support plate 1 or the second driving mechanism 6, and is located on the side of the measuring gauge 71 close to the turntable 2; the measuring end of the measuring gauge 71 rests on the reference plate 72 in the horizontal direction.

[0050] In this embodiment, the measurement table 71 and the reference plate 72 can be used to measure the moving size of the test needle 5, which is convenient to operate and accurate in measurement. The reference plate 72 can also be used as a reference for adjusting the test needle 5 to the initial position.

[0051] In the description of this specification, the terms "connection", "installation", "fixation" and the like should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] In the description of this specification, the description of the terms "one embodiment", "some embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A nozzle spray angle test tool, characterized in that: include: A support plate (1), the bottom of which is provided with a support leg (11), the support plate (1) is provided with a through hole (12), a support step (13) is provided in the through hole (12), and through grooves (14) are symmetrically provided on both sides of the through hole (12) on the support plate (1), and the through grooves (14) are all provided along the radial direction of the through hole (12); A turntable (2) coaxially and rotatably embedded in the through hole (12); A positioning member (3) is fixedly arranged on the bottom surface of the rotating disk (2) and is used for fixing and installing the nozzle (8) and making the nozzle axis of the nozzle (8) coincide with the axis of the rotating disk (2); A first driving assembly (4), arranged on the top surface of the support plate (1), drivingly connected to the turntable (2), and used for driving the turntable (2) to rotate; Test pins (5) are symmetrically arranged on both sides of the rotating disk (2), and the test pins (5) pass through the through slots (14) one by one, so as to locate the edge of the spray angle to be detected; A second driving mechanism (6), arranged on the top surface of the support plate (1), and connected to the test card needles (5) in a one-to-one transmission manner, and used for driving the test card needles (5) to move radially along the turntable (2); A measuring component (7) is arranged on the test card needle (5) and is used to measure the moving dimension of the test card needle (5).

2. The nozzle spray angle test tool according to claim 1, characterized in that: The positioning member (3) comprises a connecting seat (31), the connecting seat (31) is fixedly mounted on the bottom of the turntable (2) by means of a positioning pin and a first screw (32), a mounting plate (33) is fixedly arranged on one side of the connecting seat (31), a avoidance hole is provided on the mounting plate (33), and the nozzle (8) is fixedly mounted on the mounting plate (33) by means of a second screw (34).

3. The nozzle spray angle test tool according to claim 1, characterized in that: The first driving assembly (4) comprises a first bracket (41) fixedly arranged on the top surface of the support plate (1); a sleeve (42) coaxial with the turntable (2) is fixedly arranged on the first bracket (41); a driving shaft (43) is rotatably sleeved on the sleeve (42); a transmission seat (44) is fixedly arranged on the top surface of the turntable (2); a driving handle (45) is fixedly connected to the top end of the driving shaft (43); and a driving seat (44) is fixedly connected to the bottom end via a transmission rod (46); an angle disk (47) is fixedly sleeved on the top end of the sleeve (42); an angle scale is arranged on the top surface of the angle disk (47); and a scale pointer (48) extending toward the angle disk (47) is fixedly arranged on the bottom of the driving handle (45).

4. The nozzle spray angle test tool according to claim 1, characterized in that: The test needle (5) comprises a vertical section (51) and a horizontal section (52) fixedly connected to the bottom end of the vertical section (51), the vertical section (51) passes through the corresponding through slot (14), the horizontal section (52) extends toward the axis of the turntable (2), and a positioning tip (53) is provided at one end of the horizontal section (52) close to the axis of the turntable (2).

5. The nozzle spray angle test tool according to claim 1, characterized in that: The second driving mechanism (6) comprises a second bracket (61) fixedly arranged on the top surface of the turntable (2) and respectively located at the two ends of the through groove (14); a parallel lead screw (62) and a guide rod (63) are arranged between the two second brackets (61); the lead screw (62) is arranged along the radial direction of the turntable (2), and its two ends are rotatably connected to the second bracket (61) through bearings; one end of the lead screw (62) is fixedly connected with a knurled end (64); a fixing sleeve (65) located on the outer periphery of the lead screw (62) is fixedly arranged on the second bracket (61); and a top screw (66) for locking and fixing the lead screw (62) is arranged on the fixing sleeve; the test pin (5) is threadedly sleeved with the lead screw (62) and slidably sleeved with the guide rod (63).

6. The nozzle spray angle test tool according to claim 1, characterized in that: The measuring assembly (7) comprises a measuring gauge (71) and a reference plate (72); the measuring gauge (71) is fixedly arranged on the test card needle (5) and is a dial gauge or a micrometer; the reference plate (72) is fixedly arranged on the support plate (1) or the second driving mechanism (6) and is located on a side of the measuring gauge (71) close to the turntable (2); the measuring end of the measuring gauge (71) abuts against the reference plate (72) in a horizontal direction.

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