CN212110574U - Clamp for testing internal gear pump - Google Patents
Clamp for testing internal gear pump Download PDFInfo
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- CN212110574U CN212110574U CN202021090236.6U CN202021090236U CN212110574U CN 212110574 U CN212110574 U CN 212110574U CN 202021090236 U CN202021090236 U CN 202021090236U CN 212110574 U CN212110574 U CN 212110574U
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Abstract
The utility model relates to an experimental technical field of inside engaged gear, specifically disclose an anchor clamps for inside engaged gear pump is experimental, the power distribution box comprises a box body, box one side opening, can dismantle to the inside side of box and be connected with the base, the base free end can be dismantled and be connected with the tight anchor clamps that expand, it has the installation cavity to open in the base, fixed mounting has the motor in the installation cavity, motor output fixedly connected with connecting rod, the connecting rod free end passes base threaded connection and has the piston tight pole that expands, the piston tight pole that expands passes the tight anchor clamps fixedly connected with that expands tight cover, the tight cover free end that expands is equipped with the gear, the inside one side relative with the base of box is equipped with the cylinder, the cylinder output rotates and is connected with the apex cover, the go-between.
Description
Technical Field
The utility model relates to an internal gear pump is experimental technical field, specifically discloses an experimental anchor clamps of using of internal gear pump.
Background
The inner gear pump adopts the principle of gear inner gearing, the pitch circle of the inner gear ring is close to one side, and the other side is separated by a crescent plate on the pump cover. The driving gear on the main shaft drives the inner gear rings to rotate in the same direction, the gears are separated from each other at the inlet to form negative pressure to suck liquid, and the gears are continuously embedded and meshed at the outlet to extrude and output the liquid.
After the driving gear is produced, a product test is needed, the test piece is the driving gear, whether the driving gear can be fully meshed with the inner gear ring or not is mainly detected, and the phenomenon that interference is generated between the gear and the inner gear ring in actual work to cause abrasion of the driving gear, so that the working efficiency and the service life of the gear pump are reduced is avoided. The existing driving gear clamp clamps a driving gear in an experimental process, the driving gear rotates through an inner gear ring, an inventor finds that the inner gear ring rotates eccentrically because the inner gear ring and a gear do not rotate coaxially, and compared with an actual working rotating scene, the stress condition is changed from the stress from the tooth root to the tooth tip of the inner gear ring to the stress from the tooth root to the tooth tip of the driving gear, so that a stress object is changed, a test error exists, and the clamp is required to clamp the gear and drive the gear to rotate for detection.
Therefore, the inventor provides a jig for testing an internal gear pump so as to solve the above problems by taking the experience of abundant design development and actual manufacturing in the related industry for years and researching and improving the existing structure and defects.
Disclosure of Invention
The utility model aims to solve traditional driving gear anchor clamps and press from both sides the driving gear tight in the experimentation, rotate through the ring gear, because ring gear and gear are not coaxial rotation, so for eccentric rotation during the ring gear rotates, rotate the scene with the actual work and compare, the atress condition is changed the atress of driving gear tooth root to the prong by the atress of ring gear tooth root to prong into, has changed the atress object, has test error's problem.
In order to achieve the purpose, the utility model discloses a basic scheme provides an experimental anchor clamps that use of crescent gear pump, the power distribution box comprises a box body, box one side opening, the inside side of box can be dismantled and be connected with the base, the base free end can be dismantled and be connected with the tight anchor clamps that expand, seted up the installation cavity in the base, fixed mounting has the motor in the installation cavity, motor output end fixedly connected with connecting rod, the connecting rod free end passes base threaded connection has the piston tight pole that expands, the piston tight pole that expands passes the tight anchor clamps fixedly connected with that expand and is used for the tight cover that expands of fixed test piece, the tight cover that expands rotates with the tight anchor clamps that expand and is connected, the inside one side relative with the base of box is equipped with the cylinder, the cylinder output rotates and is connected with the point cover that is used for pressing from both sides tight test piece, the coaxial rotation.
The principle and effect of this basic scheme lie in:
the utility model discloses a test piece be the gear, in operation, install the gear on the expansion cover, start the cylinder, the cylinder promotes the apical cap cover to remove, when contacting the gear, press the gear into the expansion cover completely, realize the fixed of gear, gear and ring gear meshing simultaneously, turn on the motor, the motor drives the connecting rod rotation, the connecting rod is connected with piston expansion pole screw thread, the motor direction of rotation is opposite with the screw thread direction, ensure that piston expansion pole can not drop, piston expansion pole drives the expansion cover rotation, the expansion cover drives gear and ring gear meshing transmission, the ring gear rotates in the spout of go-between, compared with the prior art, the utility model discloses whether can fully mesh with the ring gear through fixed gear test detection driving gear, the motion scene simulates true operating condition, it is accurate to detect, solved traditional driving gear anchor clamps and is tight the driving gear in the experimentation, through the rotation of the inner gear ring, because the inner gear ring and the gear do not rotate coaxially, the inner gear ring rotates eccentrically, and compared with an actual working rotating scene, the stress condition is changed from the stress from the tooth root to the tooth tip of the inner gear ring to the stress from the tooth root to the tooth tip of the driving gear, so that a stress object is changed, and the problem of test errors exists.
Further, the base is connected with the box body through bolts, and the expansion clamp is connected with the base through bolts. The bolt connection is convenient to disassemble and assemble.
Furthermore, the free end of the expansion clamp is provided with a limit groove, and the expansion sleeve is rotatably connected in the limit groove. The limiting groove is used for limiting the position of the expansion sleeve and ensuring that the gear is fully meshed with the inner gear ring.
Furthermore, supports are symmetrically arranged on two sides of the connecting ring. The support is used for fixing the connecting ring, shares the stress of the connecting ring, ensures that the connection is not loosened in the test process, and ensures the test accuracy.
Furthermore, a thrust ball bearing and a deep groove ball bearing are arranged at the rotating part of the output end of the air cylinder and the rotating part of the center sleeve. And meanwhile, the thrust ball bearing and the deep groove ball bearing are arranged to improve the axial stress and the radial stress of the output end of the air cylinder, and the service life of the air cylinder is prolonged.
Furthermore, a coupler is arranged at the contact part of the output end of the motor and the connecting rod. The shaft coupling is used for connecting motor output shaft and connecting rod, guarantees that connecting rod and motor coaxial rotation reduce the connecting rod atress.
Drawings
Fig. 1 is the embodiment of the utility model provides a structural schematic diagram of experimental anchor clamps of using of crescent gear pump.
Detailed Description
The following is further detailed by the specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a box body 1, a base 2, an expansion clamp 3, a mounting cavity 4, a motor 5, a connecting rod 6, a piston expansion rod 7, a limiting groove 8, an expansion sleeve 9, a gear 10, a cylinder 11, a tip sleeve 12, a connecting ring 13, a sliding groove 14, an inner gear ring 15, a support 16, a thrust ball bearing 17, a deep groove ball bearing 18 and a coupling 19.
The utility model provides an experimental anchor clamps of using of crescent gear pump, the embodiment is shown in figure 1, including box 1, the preceding opening of box 1, the opening is used for gear 10 easy to assemble to observe the test process, the inside left surface of box 1 can be dismantled and be connected with base 2, 2 free ends of base can be dismantled and be connected with the tight anchor clamps 3 that expand, base 2 and 1 bolted connection of box, tight anchor clamps 3 and 2 bolted connection of base expand. The bolt connection is convenient to disassemble and assemble.
The base 2 is internally provided with a mounting cavity 4, a motor 5 is fixedly mounted in the mounting cavity 4, the output end of the motor 5 is fixedly connected with a connecting rod 6, and the contact part of the output end of the motor 5 and the connecting rod 6 is provided with a shaft coupling 19. The shaft coupling 19 is used for connecting the output shaft of the motor 5 and the connecting rod 6, ensures that the connecting rod 6 and the motor 5 rotate coaxially, and reduces the stress of the connecting rod 6. The free end of the connecting rod 6 passes through the base 2 and is connected with the piston expansion rod 7 through threads, the piston expansion rod 7 passes through the expansion sleeve 9 fixedly connected with the expansion clamp 3, the free end of the expansion clamp 3 is provided with a limit groove 8, and the expansion sleeve 9 is rotatably connected in the limit groove 8. The limiting groove 8 is used for limiting the position of the expansion sleeve 9 and ensuring that the gear 10 is fully meshed with the inner gear ring 15. The free end of the expansion sleeve 9 is provided with a gear 10.
An air cylinder 11 is fixedly installed on the right side face inside the box body 1, the output end of the air cylinder 11 is rotatably connected with a center sleeve 12, and a thrust ball bearing 17 and a deep groove ball bearing 18 are arranged at the rotating positions of the output end of the air cylinder 11 and the center sleeve 12. Meanwhile, the thrust ball bearing 17 and the deep groove ball bearing 18 are arranged, so that the axial stress and the radial stress of the output end of the air cylinder 11 are improved, and the service life of the air cylinder 11 is prolonged.
The connecting rings 13 are symmetrically arranged on the inner top surface and the inner bottom surface of the box body 1, and the brackets 16 are symmetrically arranged on both sides of the connecting rings 13. The support 16 is used for fixing the connecting ring 13, shares the stress of the connecting ring 13, ensures that the connection is not loosened in the test process, and ensures the test to be accurate. The inner side surfaces of the connecting rings 13 are provided with sliding grooves 14, and inner gear rings 15 are rotatably connected in the sliding grooves 14.
The specific working process is as follows: the test piece is a gear 10, during testing, the gear 10 is placed on an expansion sleeve 9, a cylinder 11 is started, the cylinder 11 pushes a center sleeve 12 to move, when the gear 10 is contacted, a worker is required to rotate an inner gear ring 15 in the pressing process to ensure that the gear 10 is meshed with the inner gear ring 15, when the gear 10 is completely pressed into the expansion sleeve 9 until the gear 10 is contacted with an expansion clamp 3, the cylinder 11 is closed, a motor 5 in a base 2 is started, the motor 5 drives a connecting rod 6 to rotate, the connecting rod 6 is in threaded connection with a piston expansion rod 7, the rotation direction of the motor 5 is opposite to the thread direction to ensure that the piston expansion rod 7 cannot fall off, the piston expansion rod 7 drives the expansion sleeve 9 to rotate, the expansion sleeve 9 drives the gear 10 to be meshed with the inner gear ring 15 to drive, the inner gear ring 15 rotates in a chute 14 of a connecting ring 13, and the center sleeve 12 also rotates at the output end of the, the axial stress and the radial stress of the output end of the cylinder 11 are improved through the thrust ball bearing 17 and the deep groove ball bearing 18, a worker observes through an opening in the front of the box body 1, if the gear 10 is insufficiently meshed with the inner gear ring 15, interference can be generated to cause meshing transmission to stop, the motor 5 is turned off, the gear 10 is marked as unqualified, when the gear 10 and the inner gear ring 15 are successfully meshed for transmission for a period and the meshing transmission is continued, the gear 10 is proved to be a qualified product, compared with the prior art, the utility model discloses whether the driving gear 10 can be sufficiently meshed with the inner gear ring 15 through a fixed gear 10 test, a motion scene simulates a real working state, the detection is accurate, the problem that the traditional driving gear 10 clamp clamps clamp the driving gear 10 tightly clamp the driving gear 10 in the test process, the inner gear ring 15 rotates through the inner gear ring 15, compared with an actual working rotating scene, the stress condition is changed from the stress from the tooth root to the tooth tip of the inner gear ring 15 to the stress from the tooth root to the tooth tip of the driving gear 10, a stress object is changed, the actual working rotating scene is not met, and the problem of test errors exists.
The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (6)
1. The clamp for the crescent gear pump test is characterized by comprising a box body (1), one side of the box body (1) is open, a base (2) is detachably connected to the inner side face of the box body (1), an expansion clamp (3) is detachably connected to the free end of the base (2), a mounting cavity (4) is formed in the base (2), a motor (5) is fixedly mounted in the mounting cavity (4), a connecting rod (6) is fixedly connected to the output end of the motor (5), the free end of the connecting rod (6) penetrates through the base (2) and is connected with a piston expansion rod (7) in a threaded manner, the piston expansion rod (7) penetrates through the expansion clamp (3) and is fixedly connected with an expansion sleeve (9) used for fixing a test piece, and the expansion sleeve (9) is rotatably connected with the expansion clamp (;
the test piece clamping device is characterized in that a cylinder (11) is arranged on one side, opposite to the base (2), in the box body (1), the output end of the cylinder (11) is rotatably connected with a center sleeve (12) used for clamping a test piece, the center sleeve (12) and a piston expansion rod (7) coaxially rotate, connecting rings (13) are symmetrically arranged on the inner top surface and the inner bottom surface of the box body (1), a sliding groove (14) is formed in the inner side surface of each connecting ring (13), and an inner gear ring (15) is rotatably connected in each sliding groove (14).
2. An internal gear pump test jig according to claim 1, wherein: the base (2) is connected with the box body (1) through bolts, and the expansion clamp (3) is connected with the base (2) through bolts.
3. An internal gear pump test jig according to claim 1, wherein: the free end of the expansion clamp (3) is provided with a limiting groove (8), and the expansion sleeve (9) is rotatably connected in the limiting groove (8).
4. An internal gear pump test jig according to claim 1, wherein: and brackets (16) are symmetrically arranged on two sides of the connecting ring (13).
5. An internal gear pump test jig according to claim 1, wherein: and a thrust ball bearing (17) and a deep groove ball bearing (18) are arranged at the rotating part of the output end of the air cylinder (11) and the center sleeve (12).
6. An internal gear pump test jig according to claim 1, wherein: and a coupler (19) is arranged at the contact part of the output end of the motor (5) and the connecting rod (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021090236.6U CN212110574U (en) | 2020-06-15 | 2020-06-15 | Clamp for testing internal gear pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021090236.6U CN212110574U (en) | 2020-06-15 | 2020-06-15 | Clamp for testing internal gear pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212110574U true CN212110574U (en) | 2020-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021090236.6U Active CN212110574U (en) | 2020-06-15 | 2020-06-15 | Clamp for testing internal gear pump |
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| Country | Link |
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| CN (1) | CN212110574U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878513A (en) * | 2021-09-29 | 2022-01-04 | 伯朗特机器人股份有限公司 | Upper clamping assembly for gear meshing test and clamping device thereof |
-
2020
- 2020-06-15 CN CN202021090236.6U patent/CN212110574U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113878513A (en) * | 2021-09-29 | 2022-01-04 | 伯朗特机器人股份有限公司 | Upper clamping assembly for gear meshing test and clamping device thereof |
| CN113878513B (en) * | 2021-09-29 | 2023-03-10 | 伯朗特机器人股份有限公司 | Upper clamping assembly for gear meshing test and clamping device thereof |
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20210107 Address after: 317300 West 3rd road, high tech park, Anzhou street, Xianju County, Taizhou City, Zhejiang Province Patentee after: ZHEJIANG KEISTER HYDRAULIC Co.,Ltd. Address before: No. 11-1, Dashui lane, Fuying street, Xianju County, Taizhou City, Zhejiang Province, 317300 Patentee before: Taizhou Jiecheng Intellectual Property Service Co.,Ltd. |