CN219573319U - Thrust test fixture - Google Patents

Abstract

The utility model belongs to the technical field of motor testing, and particularly relates to a thrust testing tool for testing the thrust of a linear driving piece, wherein the thrust testing tool comprises a sliding rail, a push plate and a bracket. The sliding rail extends along the thrust direction of the linear driving piece, the push plate is slidably mounted on the sliding rail and is connected with the linear driving piece, the linear driving piece can drive the push plate to reciprocate along the sliding rail, the top end of the support is connected with the gravity block through the lifting rope, one end, far away from the gravity block, of the lifting rope is connected with the push plate, and the reciprocating movement of the push plate is used for driving the lifting rope to pull up or pull down the gravity block. The utility model has simple structure, can adjust the measuring range of the thrust by the gravity blocks with different weights hung on the lifting rope, has simple and convenient operation, improves the measuring efficiency and reduces the manufacturing cost.

Description

Thrust test fixture

Technical Field

The utility model belongs to the technical field of motor testing, and particularly relates to a thrust testing tool.

Background

The stepping motor is a motor which converts an electric pulse signal into angular displacement or linear displacement, thrust fluctuation is generated in the operation process of the stepping motor, and the thrust fluctuation is a cause of motor vibration and noise, so that the thrust of the stepping motor is one of the key detection contents, and is a main content for analyzing and researching the operation characteristics and performance of the motor. The existing stepping motor push test device is complex in structure, high in cost, difficult to adjust in measurement degree and incapable of rapidly testing push force.

Disclosure of Invention

The utility model mainly aims to provide a thrust testing tool, and aims to solve the technical problems that the structure of the thrust testing tool in the prior art is complex and the testing force is not easy to adjust.

In order to achieve the above object, the present utility model provides a thrust testing tool for testing the thrust of a linear driving member, wherein the thrust testing tool includes:

the sliding rail extends along the thrust direction of the linear driving piece;

the push plate is slidably arranged on the slide rail and connected with the linear driving piece, and the linear driving piece can drive the push plate to reciprocate along the slide rail; and

the top end of the support is connected with the gravity block through a lifting rope, one end of the lifting rope, which is far away from the gravity block, is connected with the push plate, the lifting rope is arranged in a zigzag manner along the support, one end of the lifting rope, which is close to the push plate, extends along the horizontal direction, and the reciprocating movement of the push plate is used for driving the lifting rope to pull up or pull down the gravity block.

In the embodiment of the utility model, the thrust testing tool further comprises a bottom plate and mounting seats, wherein the mounting seats, the sliding rails and the brackets are fixedly arranged on the bottom plate, and the linear driving parts are a plurality of and are respectively clamped with the mounting seats in a one-to-one correspondence manner.

In the embodiment of the utility model, the bracket is fixedly arranged on the bottom plate and is provided with a plurality of rope guide pulleys which are arranged at intervals along the line, the rope guide pulleys are all arranged on the bracket, the lifting rope is sequentially and slidably wound on the periphery of the rope guide pulleys, and the free end of the lifting rope is connected with the gravity block.

In the embodiment of the utility model, a plurality of rope guide pulleys are all arranged on the same side of the bracket.

In the embodiment of the utility model, the bracket comprises a transverse plate and two vertical plates perpendicular to the bottom plate, the transverse plate is connected with the top ends of the two vertical plates and is parallel to the bottom plate, and a plurality of rope guide pulleys are respectively arranged on the vertical plates and the transverse plate and are distributed side by side to form a 7-shaped structure.

In the embodiment of the utility model, the bracket further comprises a lifting extension plate, one end of the lifting extension plate is connected with the vertical plate, the other end of the lifting extension plate extends in a direction away from the linear driving piece, the lifting extension plate is provided with a rope guiding pulley, and the free end of the lifting rope bypasses the rope guiding pulley on the lifting extension plate and falls freely.

In the embodiment of the utility model, the two ends of the sliding rail are provided with the limiting locking pieces for preventing the push plate from sliding out.

In the embodiment of the utility model, the gravity block is a weight.

In the embodiment of the utility model, the linear driving piece is a screw motor and comprises a screw, a push block and a motor, wherein the motor is used for driving the push block to reciprocate along the extending direction of the screw, and the push block is detachably connected with the push plate.

In the embodiment of the utility model, the linear driving piece is an air pump module, and the air pump module comprises a telescopic push rod detachably connected with the push plate.

Through the technical scheme, the thrust testing tool provided by the embodiment of the utility model has the following beneficial effects:

according to the utility model, the two ends of the lifting rope are respectively connected with the gravity block and the push plate, the gravity block generates a pulling force on the push plate through the force conduction of the lifting rope under the action of self gravity, however, the tested linear driving piece is used for applying a pushing force to the push plate, the pulling force of the lifting rope is opposite to the pushing force of the linear driving piece, and when the pushing force of the linear driving piece is greater than the pulling force of the lifting rope, the push plate can reciprocate along the slide rail under the action of the pushing force of the linear driving piece, so that whether the pushing force of the linear driving piece meets the requirement can be judged. The utility model has simple structure, can adjust the measuring range of the thrust by the gravity blocks with different weights hung on the lifting rope, has simple and convenient operation, improves the measuring efficiency and reduces the manufacturing cost.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The accompanying drawings are included to provide an understanding of the utility model, and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the description serve to explain, without limitation, the utility model. In the drawings:

fig. 1 is a schematic structural diagram of a thrust testing tool according to an embodiment of the utility model.

Description of the reference numerals

Reference numerals	Name of the name	Reference numerals	Name of the name
				10	Sliding rail	35	Lifting extension plate
20	Push plate	321	Limiting locking piece
				32	Rope guiding pulley	51	Screw rod
31	Lifting rope	52	Push block
				40	Bottom plate	53	Linear driving member
41	Mounting base	60	Air pump module
				33	Transverse plate	34	Vertical plate
70	Gravity block

Detailed Description

Specific embodiments of the present utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for purposes of illustration and explanation only and are not intended to limit the present utility model.

The thrust force test fixture according to the present utility model is described below with reference to the accompanying drawings.

As shown in fig. 1, in the embodiment of the present utility model, a thrust testing tool is provided for testing the thrust force of a linear driving member 53, wherein the thrust testing tool includes a slide rail 10, a push plate 20 and a bracket. The slide rail 10 extends along the thrust direction of the linear driving piece 53, the push plate 20 is slidably mounted on the slide rail 10 and is connected with the linear driving piece 53, the linear driving piece 53 can drive the push plate 20 to reciprocate along the slide rail 10, the top end of the support is connected with the gravity block 70 through the lifting rope 31, one end of the lifting rope 31 far away from the gravity block 70 is connected with the push plate 20, the lifting rope 31 is arranged in a zigzag manner along the support, one end close to the push plate 20 extends along the horizontal direction, and the reciprocating movement of the push plate 20 is used for driving the lifting rope 31 to pull up or pull down the gravity block 70.

The two ends of the lifting rope 31 are respectively connected with the gravity block 70 and the push plate 20, the gravity block 70 generates a pulling force on the push plate 20 through the force conduction of the lifting rope 31 under the action of self gravity, the pulling force is equal to the gravity of the gravity block 70, the pulling force direction is consistent with the extending direction of the sliding rail 10, however, the tested linear driving piece 53 is used for applying a pushing force to the push plate 20, the pushing force direction is consistent with the extending direction of the sliding rail 10, and the pulling force of the lifting rope 31 is opposite to the pushing force of the linear driving piece 53. In summary, as can be seen from the basic physical law, when the thrust of the linear driving member 53 is greater than the pulling force of the lifting rope 31, the pushing plate 20 can reciprocate along the sliding rail 10 under the thrust of the linear driving member 53, that is, when the pushing plate 20 can reciprocate, the thrust of the linear driving member 53 is greater than the gravity of the gravity block 70, and the magnitude of the thrust of the linear driving member 53 meets the requirement. Furthermore, it is possible to provide a device for the treatment of a disease. When the amounts of thrust to be measured are different, gravity blocks 70 of different weights can be suspended at the ends of the lifting rope 31 to meet different thrust test requirements.

The force of the linear driving member 53 on the push plate 20 is not limited to a pulling force, but is a pushing force or a pulling force applied in driving the push plate 20 to reciprocate, the direction of the force is the same as or opposite to the pulling force of the pull rope, and when the force of the linear driving member 53 on the push plate 20 is opposite to the pulling force of the pull rope, if the linear driving member 53 can still drive the push plate 20, it can be proved that the linear driving member 53 meets the test requirement.

In the embodiment of the utility model, the thrust testing tool further comprises a bottom plate 40 and an installation seat 41, wherein the installation seat 41, the sliding rail 10 and the support are fixedly installed on the bottom plate 40, and the linear driving parts 53 are a plurality of and are respectively clamped with the installation seats 41 in a one-to-one correspondence manner. The thrust testing tool provided by the utility model is provided with the plurality of mounting seats 41, when the linear driving pieces 53 with different specifications or types are measured, the different linear driving pieces 53 are mounted on the different mounting seats 41, and the push plate 20 is driven to finish the thrust testing, so that the applicability and economic benefits of the thrust testing tool are improved. It should be noted that only one linear driving member 53 can be installed on the thrust testing tool in the same time period, so as to prevent the different linear driving members 53 from interfering with the test.

In the embodiment of the present utility model, the bracket is fixedly installed on the bottom plate 40 and is provided with a plurality of rope guide pulleys 32 arranged at intervals along the line, the plurality of rope guide pulleys 32 are all installed on the bracket, the lifting rope 31 is sequentially wound around the periphery of the rope guide pulleys 32 in a sliding manner, and the free end of the lifting rope 31 is connected with the gravity block 70. The plurality of rope guide pulleys 32 arranged on the support pull one end of the lifting rope 31 connected with the gravity block 70 to the top end of the support, so that the gravity block 70 has enough reciprocating movement space in the thrust test process, and meanwhile, the pulley is connected with the lifting rope 31, so that excessive friction force cannot be generated, and the influence of the friction force on the test result in the movement process of the lifting rope 31 is prevented. In addition, the distance between two rope guiding pulleys 32 needs to be regulated according to actual conditions, and the conditions that the distance between the adjacent rope guiding pulleys 32 is too long, the hanging rope 31 sags, and the distance between the adjacent rope guiding pulleys 32 is too short and the rope guiding pulleys 32 are too much used are avoided as much as possible.

Wherein, a plurality of rope guide pulleys 32 are all installed in the same side of support, make the motion track of whole lifting rope 31 be in the coplanar all the time, and the motion of lifting rope 31 is more smooth in the reciprocating motion's of push pedal 20 in-process, has effectively prevented the condition that lifting rope 31 deviate from rope guide pulley 32 from appearing.

In the embodiment of the utility model, the bracket comprises a transverse plate 33 and two vertical plates 34 perpendicular to a bottom plate 40, the transverse plate 33 is connected with the top ends of the two vertical plates 34 and parallel to the bottom plate 40, and a plurality of rope guide pulleys 32 are respectively arranged on the vertical plates 34 and the transverse plate 33 side by side to form a 7-shaped structure. The riser 34, cross plate and bottom plate 40 form a stable frame that makes the support less prone to wobble during thrust testing, providing good stability for improved accuracy of testing.

In addition, the support further comprises a lifting extension plate 35, one end of the lifting extension plate 35 is connected with the vertical plate 34, the other end of the lifting extension plate 35 extends in a direction far away from the linear driving piece 53, the lifting extension plate 35 is also provided with a rope guiding pulley 32, and the free end of the lifting rope 31 bypasses the rope guiding pulley 32 on the lifting extension plate 35 and falls freely. The weight 70 is hung on the free end of the freely falling lifting rope 31, and the lifting extension plate 35 pulls the weight 70 away from the linear driving member 53 and the bracket, so that the weight 70 has sufficient reciprocating space.

The structure of the bracket and the connection manner of the hoist rope 31 of the present utility model are described in detail above with reference to fig. 1, but the present utility model is not limited thereto. Within the scope of the technical idea of the utility model, a plurality of simple variants of the technical proposal of the utility model can be carried out, comprising that each specific technical feature is combined in any suitable way, and in order to avoid unnecessary repetition, the utility model does not need to be additionally described for various possible combinations. Such simple variations and combinations are likewise to be regarded as being within the scope of the present disclosure.

In the embodiment of the present utility model, in order to prevent the movement range of the linear driving member 53 from being greater than the range of the slide rail 10, both ends of the slide rail 10 are provided with the limit locking member 321 for preventing the push plate 20 from sliding out.

In the embodiment of the present utility model, the weight block 70 is preferably a weight, and according to different testing requirements, a worker can connect weights with different weights on the lifting rope 31 to test whether the linear driving member 53 meets the corresponding thrust force, but the application scope of the present utility model is not limited thereto, and can be other components such as a weight, an iron block, etc.

In the embodiment of the present utility model, as shown in fig. 1, the linear driving member 53 may be a screw motor and includes a screw 51, a push block 52 and a motor, where the motor is used to drive the push block 52 to reciprocate along the extending direction of the screw 51, and the push block 52 is detachably connected to the push plate 20. Specifically, the screw rod 51 has an external thread and is inserted into the push block 52 having an internal thread, the motor drives the screw rod 51 to perform axial rotation movement, and meanwhile, the push block 52 performs linear movement under the action of the internal thread and the external thread, and when the screw rod 51 performs reverse rotation, the push block 52 also performs opposite linear movement, so that the reciprocating movement of the push block 52 along the extending direction of the screw rod 51 is finally realized. Wherein, the motor is detachably installed on the installation seat 41, and when the screw motor needs to be detached from the thrust testing tool, the push block 52, the motor and the screw 51 need to be detached simultaneously.

In the embodiment of the present utility model, the linear driving member 53 may be an air pump module 60, the air pump module 60 includes a telescopic push rod detachably connected to the push plate 20, and when the telescopic push plate 20 can push the push plate 20 to reciprocate, it can be proved that the thrust of the air pump module 60 meets the test requirement, and the principle is consistent with the above screw motor, which is not repeated herein.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. A thrust test fixture for testing the thrust of a linear driving member (53), the thrust test fixture comprising:

a slide rail (10) extending in the horizontal direction;

the push plate (20) is slidably arranged on the sliding rail (10) and is connected with the linear driving piece (53), and the linear driving piece (53) can drive the push plate (20) to reciprocate along the sliding rail (10); and

the top end of the support is connected with the gravity block (70) through the lifting rope (31), one end, far away from the gravity block (70), of the lifting rope (31) is connected with the pushing plate (20), the lifting rope is arranged in a zigzag manner along the support, one end, close to the pushing plate, of the lifting rope extends in the horizontal direction, and reciprocating movement of the pushing plate (20) is used for driving the lifting rope (31) to pull up or pull down the gravity block (70).

2. The thrust testing tool according to claim 1, further comprising a bottom plate (40) and a mounting seat (41), wherein the mounting seat (41), the sliding rail (10) and the bracket are fixedly mounted on the bottom plate (40), and the linear driving members (53) are respectively clamped with the mounting seats (41) in a one-to-one correspondence manner.

3. The thrust test fixture according to claim 2, wherein the bracket is fixedly mounted on the bottom plate (40) and is provided with a plurality of rope guide pulleys (32) arranged at intervals along a line, the lifting rope (31) is sequentially and slidably wound on the periphery of the rope guide pulleys (32), and the free end of the lifting rope (31) is connected with the gravity block (70).

4. A thrust testing fixture according to claim 3, wherein a plurality of said rope guide pulleys (32) are mounted on the same side of said bracket.

5. A thrust testing fixture according to claim 3, wherein the bracket comprises a transverse plate (33) and two vertical plates (34) perpendicular to the bottom plate (40), the transverse plate (33) is connected with the top ends of the two vertical plates (34) and parallel to the bottom plate (40), and a plurality of rope guide pulleys (32) are respectively arranged on the vertical plates (34) and the transverse plates (33) side by side to form a 7-shaped structure.

6. The thrust testing fixture according to claim 5, wherein the bracket further comprises a lifting extension plate (35), one end of the lifting extension plate (35) is connected with the vertical plate (34), the other end of the lifting extension plate extends away from the linear driving piece (53), the lifting extension plate (35) is provided with the rope guide pulley (32), and the free end of the lifting rope (31) bypasses the rope guide pulley (32) on the lifting extension plate (35) and falls freely.

7. The thrust testing tool according to any one of claims 1 to 6, wherein both ends of the slide rail (10) are provided with a limit locking piece (321) for preventing the push plate (20) from sliding out.

8. The thrust testing fixture of any one of claims 1 to 6, wherein the weight (70) is a weight.

9. The thrust testing tool according to any one of claims 1 to 6, wherein the linear driving member (53) is a screw motor and comprises a screw (51), a push block (52) and a motor, the motor is used for driving the push block (52) to reciprocate along the extending direction of the screw (51), and the push block (52) is detachably connected with the push plate (20).

10. The thrust testing fixture according to any one of claims 1 to 6, wherein the linear driving member (53) is a suction pump module (60), the suction pump module (60) comprising a telescopic push rod detachably connected to the push plate (20).