CN210833958U

CN210833958U - Anti-skid force testing device for rope clip

Info

Publication number: CN210833958U
Application number: CN201921868996.2U
Authority: CN
Inventors: 刘佳; 李刚; 里鑫
Original assignee: Beijing Materials Handling Research Institute Co ltd
Current assignee: Beijing Materials Handling Research Institute Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-06-23
Anticipated expiration: 2029-10-29

Abstract

The utility model relates to a test device technical field provides a rope clip antiskid power testing arrangement, include: the test device comprises a support, a first support part and a second support part, wherein the first support part is arranged on the support, a test piece is inserted into the first support part, and the support and the rope clip tightly holding the test piece are relatively fixed; the driving piece is used for driving the test piece to generate a relative motion trend with the rope clip along the axial direction of the test piece; the pressure measuring part is connected between the testing piece and the driving piece, the pressure measuring part is fixed with the testing piece, and the pressure measuring part is used for measuring the driving force of the driving piece. The utility model provides a rope clip antiskid force testing arrangement, simple structure, convenient operation, labour saving and time saving.

Description

Anti-skid force testing device for rope clip

Technical Field

The utility model relates to a test device technical field especially relates to rope clip antiskid power testing arrangement.

Background

The rope clip is a connecting device for connecting a lifting appliance and a traction rope in an aerial cableway. When the line runs, the rope clip ensures that the sling and the traction rope are always fixedly connected, and the structure of the rope clip is sensitive and reliable so as to avoid the falling of the sling.

The existing rope clip used in the cableway must be tested in an anti-slip force test before leaving factory, and when the rope clip is used for holding tightly, the rope clip is required not to slide under the condition of bearing 3 times of the maximum downward slip force. In the prior art, a test mode is that a rope clip is tightly clasped and hung on a steel wire rope, a fixed position is found at a construction site to pull the rope clip, and whether the rope clip slides or not is tested when the pulling force reaches 3 times of the maximum sliding force. The whole test process is complex, the test construction occupies a large space and is inconvenient to operate, and a large amount of manpower and material resources are consumed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a rope clip antiskid power testing arrangement, simple structure, convenient operation, labour saving and time saving.

According to the utility model discloses rope clip antiskid power testing arrangement, include:

the test device comprises a support, a first support part and a second support part, wherein the first support part is arranged on the support, a test piece is inserted into the first support part, and the support and the rope clip tightly holding the test piece are relatively fixed;

the driving piece is used for driving the test piece to generate a relative motion trend with the rope clip along the axial direction of the test piece;

the pressure measuring part is connected between the testing piece and the driving piece, the pressure measuring part is fixed with the testing piece, and the pressure measuring part is used for measuring the driving force of the driving piece.

According to the utility model discloses an embodiment, the support still includes the second supporting part, the both sides of second supporting part set up respectively the pressure measurement part with the driving piece, sliding connection in the second supporting part the pressure measurement part.

According to an embodiment of the invention, the driving member is a threaded preload member, which is threaded in the second support portion.

According to the utility model discloses an embodiment, the driving piece is the screw thread preload piece, fixedly connected with clamp plate on the second supporting part, screw thread preload piece threaded connection in the clamp plate.

According to the utility model discloses an embodiment, the pressure measurement part includes pressure sensor and slider, pressure sensor peg graft in the slider, slider sliding connection in the second supporting part, the slider butt the driving piece.

According to the utility model discloses an embodiment, the pressure measurement part includes pressure sensor and slider, the both ends of slider butt respectively the driving piece with pressure sensor, slider sliding connection in the second supporting part, the test piece run through pressure sensor and plug in the slider.

According to the utility model discloses an embodiment, the support with be equipped with the regulating part between the rope-grippers, the one end threaded connection of regulating part in the support or one in the rope-grippers, other end butt another.

According to an embodiment of the invention, the pressure measurement part is axially limited by a shoulder on the test piece.

According to an embodiment of the invention, the pressure measurement part is threaded in the test piece.

According to the utility model discloses an embodiment, be equipped with the scale on the first supporting part, the scale is followed the motion trend direction of test piece extends.

The embodiment of the utility model provides an in above-mentioned one or more technical scheme, one of following technological effect has at least: the support supports and fixes the rope-grippers, and the support carries out radial spacing to the test piece simultaneously, and the test piece can carry out axial displacement, and the driving piece provides the drive power that produces the relative motion trend between test piece and the rope-grippers. If the driving force provided by the driving piece is less than 3 times of the maximum downward slip force, the test piece and the rope clip generate relative motion, and the anti-slip force of the rope clip does not meet the requirement; if the driving force provided by the driving piece is not less than 3 times of the maximum downward slip force, the test piece and the rope clip do not move relatively, and the anti-slip force of the rope clip meets the requirement. Wherein the magnitude of the driving force is measured by a pressure test part. The test process is simple, the operation is simple and convenient, and the time and the labor are saved.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a device for testing an anti-skid force of a rope clip provided by an embodiment of the present invention;

fig. 2 is a schematic side view of an anti-slip force testing device of a rope clip according to an embodiment of the present invention;

fig. 3 is a schematic view of a support structure of the anti-slip force testing device for a rope clip according to an embodiment of the present invention;

FIG. 4 is a side view schematic of the structure of FIG. 3;

FIG. 5 is a schematic top view of the structure of FIG. 3;

fig. 6 is a schematic structural diagram of a test piece of the anti-skid force testing apparatus for a rope clip provided by the embodiment of the present invention.

Reference numerals:

1. a support; 11. a first support section; 111. a first through hole; 12. a second support portion; 121. a second through hole; 13. a top plate; 14. a base plate; 2. a rope clip; 3. testing the piece; 4. a pressure sensor; 41. a sensor body; 42. a sensor base; 5. pressing a plate; 6. a thread preload piece; 7. a slider; 8. an adjusting member.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the embodiments of the present invention can be understood in specific cases by those skilled in the art.

In embodiments of the invention, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean 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 an embodiment of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer 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, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

With reference to fig. 1 to 6, an embodiment of the present invention provides a rope clip antiskid force testing device, including: the test device comprises a support 1, wherein a first support part 11 is arranged on the support 1, a test piece 3 is inserted into the first support part 11, and the support 1 is fixed with a rope clip 2 tightly holding the test piece 3; the driving piece is used for driving the test piece 3 to generate a relative movement trend with the rope clip 2 along the axial direction of the test piece; and the pressure measuring part is connected between the test piece 3 and the driving piece, is fixed with the test piece 3 and is used for measuring the driving force of the driving piece.

The first supporting part 11 radially limits the test piece 3, and ensures that the test piece 3 can generate a trend of relative motion in the axial direction. Then, the rope clip 2 is tightly held on the test piece 3, and the rope clip 2 and the support 1 are ensured to be relatively fixed. During testing, the driving part applies driving force to the pressure measuring part, and the pressure measuring part transmits the driving force to the testing piece 3 so as to drive the testing piece 3 to generate a trend of relative movement with the rope clip 2; wherein the pressure measuring part moves synchronously with the test piece 3.

When the pressure measuring part measures that the driving force provided by the driving part is less than 3 times of the maximum downward slip force, the testing part 3 and the rope clip 2 generate relative motion, and the anti-slip force of the rope clip 2 does not meet the requirement; when the pressure measuring part measures that the driving force provided by the driving part is not less than 3 times of the maximum slipping force, the test part 3 and the rope clip 2 do not move relatively, and the slipping force of the rope clip 2 meets the requirement. Wherein, whether test piece 3 and rope-grippers 2 produced relative motion, accessible operating personnel observes test piece 3 and whether moves and reachs.

The test piece 3 may be a shaft structure with a smooth surface or a steel wire rope. The shaft structure is convenient to install and position; the steel wire rope and the rope clip 2 can be matched to reflect the actual situation more accurately. When the rope grippers 2 of the same specification are tested, one test piece 3 can be shared.

The first supporting part 11 is provided with a first through hole 111, the first through hole 111 is matched with the radial size of the test piece 3, the test piece 3 is inserted into the first through hole 111, and the first through hole 111 supports and positions the test piece 3. The end of the test piece 3 may be flush with the end face of the first through hole 111 to facilitate the operator to observe whether the test piece 3 and the rope clip 2 make relative movement.

The anti-slip force testing device for the rope clip realizes the purpose of testing the anti-slip force of the rope clip 2 under the laboratory condition; compared with the prior art, the rope clip 2 is tightly clipped on the steel wire rope with two fixed ends, and the rope clip 2 is pulled by external force, the test space needs to be several cubic meters, and the test space is reduced to zero and several cubic meters by adopting the device of the embodiment, so that the space is obviously saved. In addition, the device of the embodiment has the advantages that the pressure measurement component can see the magnitude of the driving force in real time, the magnitude of the driving force is controllable, the device is high in functionality, simple in structure and convenient to operate, and time and labor are saved.

An embodiment of the stand 1 is provided below.

As shown in fig. 1 and fig. 3 to 5, in one embodiment, the support 1 further includes a second support portion 12, a pressure measuring component and a driving component are respectively disposed on two sides of the second support portion 12, the pressure measuring component is slidably connected in the second support portion 12, and the driving component abuts against the pressure measuring component.

The second support portion 12 is provided with a second through hole 121, the pressure measurement component is slidably connected in the second through hole 121, and the second through hole 121 guides the movement of the pressure measurement component. The driving force of the driving piece acts on the pressure measuring component, and the pressure measuring component transmits the driving force to the testing piece 3, so that the pressure measuring component is ensured to accurately measure the driving force.

The support 1 further comprises a bottom plate 14 and a top plate 13, the first supporting portion 11 and the second supporting portion 12 are symmetrically arranged on two sides of the bottom plate 14, and the top plate 13 is connected above the first supporting portion 11 and the second supporting portion 12 and can strengthen the stability of the first supporting portion 11 and the second supporting portion 12. The top plate 13, the bottom plate 14, the first support 11, and the second support 12 are all steel plates. The support 1 is simple in structure, is built by steel plates, and is light in weight and reasonable in stress structure distribution.

In another embodiment, based on the above embodiment, the driving member is a threaded preload member 6, and the threaded preload member 6 is threadedly coupled to the second support portion 12. The second through hole 121 is provided with a thread section, the thread preload piece 6 is in threaded connection with the second through hole 121, the thread preload piece 6 is screwed, and then the thread preload piece 6 provides driving force for the pressure measurement part, so that the test piece 3 and the rope clip 2 are driven to generate relative movement trend. The thread pre-tightening piece 6 is simple in structure and convenient to operate in a manner of screwing to load driving force. According to the degree of screwing the threaded preload pieces 6, the force measurement of the anti-slip force of the rope clip 2 is controllable and adjustable, the maximum pressure value is read from the pressure measurement component, and the read maximum value is the anti-slip force of the rope clip 2.

Wherein the threaded preload member 6 may be a preload bolt.

In addition, the driving part can also be other parts which can provide axial driving force, such as an air cylinder, a hydraulic cylinder, a linear motor and the like.

In another embodiment, the difference from the above embodiment is that the pressing plate 5 is fixedly connected to the second supporting portion 12, and the threaded preload member 6 is threadedly coupled to the pressing plate 5. The second through hole 121 does not need to be provided with a threaded section, simplifying the structure of the second support portion 12. Wherein, clamp plate 5 passes through bolt detachable connection in second supporting part 12, and clamp plate 5 is the steel sheet structure.

Embodiments of pressure measurement components are provided below.

Referring to fig. 1, in one embodiment, the pressure measuring part comprises a pressure sensor 4 and a slider 7, the pressure sensor 4 is plugged into the slider 7, the slider 7 is slidably connected to the second supporting portion 12, and the slider 7 abuts against the driving member.

The slider 7 is slidably connected to the second through hole 121 and the threaded preload member 6 provides axial drive to the slider 7. The sliding block 7 is independent of the pressure sensor 4, and the sliding block 7 is convenient to replace after being worn, so that the service life of the pressure sensor 4 is prolonged.

The pressure sensor 4 includes a sensor body 41 and a sensor base 42, the sensor body 41 is fixedly connected to the sensor base 42 through bolts, the sensor base 42 is abutted to the slider 7, and the sensor body 41 is fixed to the test piece 3. The driving force of the driving member is transmitted to the slider 7, the sensor base 42, the sensor body 41, and the test piece 3 in this order.

The pressure sensor 4 can be a spoke type sensor, and the spoke type sensor is accurate and stable in testing.

In another embodiment, the difference from the above-described embodiment is that the test piece 3 penetrates the pressure sensor 4 and is inserted into the slider 7. The test piece 3 is limited in the slide block 7, and the positioning accuracy of the test piece 3 is improved. Wherein, be equipped with the clearance between the axial of test piece 3 and slider 7, avoid the axial of test piece 3 and slider 7 contact, guarantee the accuracy of pressure registration of pressure sensor 4.

Further, the pressure measurement part female connection test piece 3, that is to say 4 female connection test pieces 3 of pressure sensor, guarantees the stability of being connected of test piece 3 and pressure sensor 4, prevents to test 3 circumferential direction of piece.

Further, as shown in fig. 1 and 6, the pressure measuring unit is axially restrained by a shoulder on the test piece 3. Namely, the test piece 3 is a stepped shaft, and the pressure sensor 4 is axially limited on the shaft shoulder of the test piece 3, so that the structure is simple, and the positioning is accurate.

In another embodiment, an adjusting piece 8 is arranged between the support 1 and the rope clip 2, one end of the adjusting piece 8 is connected with one of the support 1 or the rope clip 2 in a threaded mode, and the other end of the adjusting piece 8 abuts against the other. When the rope clip 2 is positioned on the support 1 by the stop, the guide wing fixing adjuster 8 of the rope clip 2 will be described as an example with reference to fig. 1. The adjustment member 8 brings the rope clip 2 into supporting contact with the first support part 11, preventing the rope clip 2 from moving so that the rope clip 2 and the test piece 3 have a tendency to slide relative to each other. Before testing, the rope clip 2 is attached to the first supporting part 11 as much as possible before the rope clip 2 holds the test piece 3, and then the rope clip 2 holds the test piece 3; and then the rope clip 2 is tightly abutted to the first supporting part 11 through the adjusting part 8, so that the test error is reduced, and the test accuracy is improved.

Wherein, the adjusting member 8 can be a shaft pin, a screw, etc.

When the rope clip 2 stops and limits the support 1, the first support part 11 stops and limits the rope clip 2, and the rope clip 2 and the driving piece are positioned on the same side of the first support part 11; or the support 1 is used for stopping and limiting the two sides of the rope clip 2, and the driving piece is arranged more flexibly.

In another embodiment, the difference from the above-described embodiment is that the rope clip 2 can also be fixed by means of a plug-in connection, a clamping fixation, a screw connection, etc.

In another embodiment, the first support part 11 is provided with a scale extending in the direction of the tendency of movement of the test piece 3. The scale can be fixed on the first supporting part 11 through screws, or be clamped on the first supporting part 11 through clamping grooves.

The scale is used to indicate whether the test piece 3 is moved. Before testing, an operator can record the size position on the scale corresponding to the preset position of the test piece 3; after the test is completed, the operator records the size position of the preset position on the corresponding scale again, and whether the test piece 3 moves and the moving distance are obtained by comparing the two size positions.

Wherein the preset position is the end of the test piece 3 or a mark position on the test piece 3.

The above embodiments are merely illustrative, and not restrictive, of the present invention. Although the present invention has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions may be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention, and all of the technical solutions should be covered by the scope of the claims of the present invention.

Claims

1. The utility model provides a rope clip antiskid power testing arrangement which characterized in that includes:

the test device comprises a support, a first support part and a second support part, wherein the first support part is arranged on the support, a test piece is inserted into the first support part, and the support is relatively fixed with a rope clip tightly holding the test piece;

2. The rope clip antiskid force testing device of claim 1, wherein the support further comprises a second support portion, the pressure measuring component and the driving component are respectively arranged on two sides of the second support portion, and the pressure measuring component is slidably connected in the second support portion.

3. The rope clip anti-skid force testing device of claim 2, wherein the driving member is a threaded preload member that is threadedly coupled to the second support portion.

4. The grip antiskid force testing apparatus according to claim 2, wherein the driving member is a threaded preload member, a pressure plate is fixedly connected to the second support portion, and the threaded preload member is threaded to the pressure plate.

5. The rope clip antiskid force testing device of claim 2, wherein the pressure measuring component comprises a pressure sensor and a sliding block, the pressure sensor is plugged into the sliding block, the sliding block is connected to the second supporting portion in a sliding mode, and the sliding block abuts against the driving piece.

6. The rope clip antiskid force testing device of claim 2, wherein the pressure measuring component comprises a pressure sensor and a sliding block, two ends of the sliding block respectively abut against the driving piece and the pressure sensor, the sliding block is slidably connected to the second supporting portion, and the testing piece penetrates through the pressure sensor and is inserted into the sliding block.

7. The rope clip antiskid force testing device of claim 1, wherein an adjusting piece is arranged between the support and the rope clip, one end of the adjusting piece is connected to one of the support or the rope clip in a threaded manner, and the other end of the adjusting piece abuts against the other rope clip.

8. The rope clip antiskid force testing arrangement of claim 1, wherein the pressure measurement component is axially restrained by a shoulder on the test piece.

9. The rope clip antiskid force test apparatus of claim 1, wherein the pressure measurement member is threaded into the test piece.

10. The rope clip antiskid force testing device of claim 1, wherein a scale is provided on the first support portion, the scale extending in a direction of a movement tendency of the test piece.