Tension detection device for air winch

Abstract

The utility model relates to the technical field of pneumatic winches, and discloses a tension detection device for a pneumatic winch, which comprises a connecting sleeve, a buffer spring is fixedly mounted on the top wall of the inner side of the connecting sleeve, a sliding contact plate is fixedly mounted at the other end of the buffer spring, and a bearing disc is fixedly connected to the bottom of the connecting sleeve. A balancing weight is placed at the top of the bearing disc, a sliding plate is slidably connected to the interior of the connecting sleeve, a connecting rod penetrating through and extending to the upper portion of the connecting sleeve is fixedly installed at the top of the sliding plate, and a connecting hook is fixedly installed on the outer side of the connecting rod; the outer side of the connecting sleeve is connected with an adjustable clamping component in linkage with the sliding plate, and the adjustable clamping component comprises a position adjusting plate fixed to the outer portion of the connecting sleeve. The tension detection device for the air winch has the advantages that the instantaneous tension can be detected while the tension can be conveniently detected.

Description

Technical Field

[0001] The utility model relates to the technical field of pneumatic winches, in particular to a tension detection device for pneumatic winches. Background Art

[0002] The pneumatic winch is powered by a blade-type pneumatic motor, which transmits power to the drum through a planetary gear reducer to lift heavy objects. The pneumatic winch motor and reducer are respectively connected to the two sides of the drum, making the winch small in size, light in weight, compact in structure, simple to operate, easy to maintain, and capable of stepless speed regulation within a certain range. The winch's braking is achieved through motor braking, and the braking is reliable.

[0003] The existing pneumatic winch tension detection device can usually conveniently perform long-term tension detection, but cannot detect instantaneous large tension. When instantaneous tension detection is required, the detection equipment needs to be replaced, which is extremely troublesome. Therefore, a pneumatic winch tension detection device is proposed to solve the above-mentioned problems. Utility Model Content

[0004] (1) Technical problems solved

[0005] In response to the shortcomings of the existing technology, the utility model provides a tension detection device for a pneumatic winch, which has the advantages of being able to conveniently perform tension detection and instantaneous tension detection at the same time. It solves the problem that the existing pneumatic winch tension detection device can usually conveniently perform long-term tension detection, but cannot detect instantaneous large tension. When instantaneous tension detection is required, the detection equipment needs to be replaced, which is extremely troublesome.

[0006] (2) Technical solution

[0007] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: A tension detection device for a pneumatic winch, comprising a connecting sleeve, a buffer spring fixedly installed on the inner top wall of the connecting sleeve, a sliding contact plate fixedly installed on the other end of the buffer spring, a supporting plate fixedly connected to the bottom of the connecting sleeve, a counterweight block placed on the top of the supporting plate, a sliding plate slidingly connected to the inside of the connecting sleeve, a connecting rod penetrating and extending to the top of the connecting sleeve fixedly installed on the top of the sliding plate, a connecting hook fixedly installed on the outer side of the connecting rod, and an adjustable clamping component linked to the sliding plate connected to the outer side of the connecting sleeve.

[0008] The beneficial effects of the utility model are:

[0009] The tension detection device for the pneumatic winch has the advantage of being able to conveniently perform tension detection and simultaneously detect instantaneous tension.

[0010] On the basis of the above technical solution, the present invention can also be improved as follows.

[0011] Furthermore, the adjustable clamping component includes a position adjustment plate fixed to the outside of the connecting sleeve, and the internal sliding connection of the connecting sleeve is provided with a switchable clamping assembly extending to the front side of the position adjustment plate and the action end contacts the top of the sliding plate, and the interior of the position adjustment plate is plugged with a position adjustment pin extending to the interior of the switchable clamping assembly.

[0012] Furthermore, the position adjustment plate is provided with adjustment holes on the inside, and the number of the adjustment holes is several and distributed in a vertical array. The switchable snap-in assembly is provided with a snap-in groove on the outside, and the position adjustment pin is cooperated with the adjustment hole and the snap-in groove to complete the horizontal position fixation of the switchable snap-in assembly.

[0013] The beneficial effect of adopting the above further solution is that the position of the switchable clamping assembly can be adjusted through the cooperation of multiple adjustment holes and clamping grooves.

[0014] Furthermore, the switchable clamping assembly includes a sliding sleeve that is slidably connected to the connecting sleeve, a clamping spring is fixedly installed on the inner side of the sliding sleeve close to the connecting rod, the other end of the clamping spring is fixedly connected to an adsorption plate, an electromagnet is fixedly installed on the inner side of the sliding sleeve away from the connecting rod, and a clamping rod extending into the connecting sleeve and in contact with the top of the sliding plate is fixedly installed on the end of the adsorption plate connected to the clamping spring.

[0015] The beneficial effect of adopting the above further solution is that the setting of the switchable clamping assembly provides a switchable clamping effect through the electromagnet and the clamping rod.

[0016] Furthermore, a limiting rod is fixedly installed on the top of the carrying plate and extends through and above the counterweight block. There are multiple counterweight blocks and they are placed vertically.

[0017] The beneficial effect of adopting the above further solution is that the setting of the limiting rod can limit the counterweight block so that it will not fall off the carrying plate when falling. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the adjustable clamping component of the utility model;

[0020] Figure 3 This is an enlarged view of point A in the figure of the present utility model;

[0021] Figure 4 This is a connection diagram of the switchable clamping assembly and the adjustment pin of the utility model.

[0022] In the figure: 1. Connecting sleeve; 2. Buffer spring; 3. Sliding contact plate; 4. Carrying plate; 5. Counterweight; 6. Sliding plate; 7. Connecting rod; 8. Connecting hook; 9. Adjustable clamping member; 91. Position adjustment plate; 92. Switchable clamping assembly; 921. Sliding sleeve; 922. Clamping spring; 923. Adsorption plate; 924. Electromagnet; 925. Clamping rod; 93. Adjustment pin. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] In the embodiment, Figure 1-4 A tension detection device for a pneumatic winch is given. The utility model includes a connecting sleeve 1, a buffer spring 2 is fixedly installed on the inner top wall of the connecting sleeve 1, a sliding contact plate 3 is fixedly installed on the other end of the buffer spring 2, the bottom of the connecting sleeve 1 is fixedly connected to a carrying plate 4, a counterweight 5 is placed on the top of the carrying plate 4, the inside of the connecting sleeve is slidably connected to a sliding plate 6, the top of the sliding plate 6 is fixedly installed with a connecting rod 7 that passes through and extends to the top of the connecting sleeve 1, a connecting hook 8 is fixedly installed on the outside of the connecting rod 7, and the outside of the connecting sleeve 1 is connected with an adjustable clamping component 9 that forms a linkage with the sliding plate 6.

[0025] Among them, the adjustable clamping component 9 includes a position adjustment plate 91 fixed to the outside of the connecting sleeve 1, and the internal sliding connection of the connecting sleeve 1 is provided with a switching clamping component 92 extending to the front side of the position adjustment plate 91 and the action end contacts the top of the sliding plate 6, and the interior of the position adjustment plate 91 is plugged with a position adjustment pin 93 extending to the inside of the switching clamping component 92.

[0026] Among them, the position adjustment plate 91 is provided with adjustment holes inside, and the number of adjustment holes is several and distributed in a vertical array. The switchable clamping assembly 92 is provided with a clamping groove outside, and the position adjustment pin 93 completes the horizontal position fixing of the switchable clamping assembly 92 through the adjustment hole and the clamping groove.

[0027] When the magnitude of the instantaneous tensile impact needs to be adjusted, the adjustment pin 93 can be removed so that the switchable clamping assembly 92 is no longer locked. At this time, the switchable clamping assembly 92 can slide up and down to adjust the connection position with the sliding plate 6, thereby adjusting the distance between the sliding plate 6 and the sliding contact plate 3 to change the magnitude of the impact tensile force.

[0028] Among them, the switchable clamping assembly 92 includes a sliding sleeve 921 that is slidingly connected to the connecting sleeve 1, and a clamping spring 922 is fixedly installed on the inner side of the sliding sleeve 921 close to the connecting rod 7, and the other end of the clamping spring 922 is fixedly connected to an adsorption plate 923, and an electromagnet 924 is fixedly installed on the inner side of the sliding sleeve 921 away from the connecting rod 7, and the end of the adsorption plate 923 connected to the clamping spring 922 is fixedly installed with a clamping rod 925 that extends into the connecting sleeve 1 and contacts the top of the sliding plate 6.

[0029] When the switchable clamping assembly 92 is in the normal state, the clamping spring 922 pushes the clamping rod 925 to remain outside the dynamic state 921, so that its bottom can block the sliding plate 6 to prevent it from moving upward. When it needs to be switched to not blocking, the electromagnet 924 acts to adsorb the adsorption plate 923, driving the clamping rod 925 to move and disengage from the sliding plate 6. At the same time, the clamping spring 922 begins to stretch, and the sliding plate 6 can move freely.

[0030] A limiting rod is fixedly installed on the top of the carrying plate 4 and extends to the top of the counterweight block 5. There are multiple counterweight blocks 5 and they are placed vertically.

[0031] Working principle:

[0032] When the device is working, it is necessary to judge the instantaneous tension and the maintained tension detected, and then place the counterweight 5 that meets the maintained tension through the limiting rod, and then adjust the relative position of the sliding plate 6 in the pulled-up state by adjusting the latch 93. At this time, the chain structure 8 can be connected to the pneumatic winch to start the constant tension maintenance test;

[0033] When the constant tension test is completed, the instantaneous tension test can be started. At this time, the switching clamping assembly 92 is actuated so that the clamping rod 925 no longer blocks the sliding plate 6. At this time, under the action of gravity, the counterweight block 5 pushes the connecting sleeve 1 to move downward rapidly until the sliding plate 6 contacts the sliding contact plate 3. At the moment of collision, an impact force greater than the original constant force can be generated to complete the instantaneous large tension test. At the same time, the impact force can be adjusted by adjusting the relative position of the sliding plate 6 in the pulled-up state, making the test more flexible.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A tension detection device for a pneumatic winch, characterized in that: The invention comprises a connecting sleeve (1), a buffer spring (2) is fixedly installed on the inner top wall of the connecting sleeve (1), a sliding contact plate (3) is fixedly installed on the other end of the buffer spring (2), a supporting plate (4) is fixedly connected to the bottom of the connecting sleeve (1), a counterweight (5) is placed on the top of the supporting plate (4), the interior of the connecting sleeve is slidably connected to a sliding plate (6), a connecting rod (7) that passes through and extends to the top of the connecting sleeve (1) is fixedly installed on the top of the sliding plate (6), a connecting hook (8) is fixedly installed on the outer side of the connecting rod (7), and an adjustable clamping component (9) that forms a linkage with the sliding plate (6) is connected to the outer side of the connecting sleeve (1).

2. A tension detection device for a pneumatic winch according to claim 1, characterized in that: The adjustable clamping member (9) comprises a position adjustment plate (91) fixed to the outside of the connecting sleeve (1); the interior of the connecting sleeve (1) is slidably connected to a switchable clamping assembly (92) extending to the front side of the position adjustment plate (91) and having an actuating end in contact with the top of the sliding plate (6); the interior of the position adjustment plate (91) is plugged with a position adjustment pin (93) extending to the interior of the switchable clamping assembly (92).

3. A tension detection device for a pneumatic winch according to claim 2, characterized in that: The position adjustment plate (91) is provided with adjustment holes in its interior, the number of the adjustment holes being several and distributed in a vertical array, the switchable clamping assembly (92) is provided with a clamping groove on its exterior, and the position adjustment pin (93) is used to fix the horizontal position of the switchable clamping assembly (92) by cooperating with the adjustment hole and the clamping groove.

4. A tension detection device for a pneumatic winch according to claim 3, characterized in that: The switchable clamping assembly (92) comprises a sliding sleeve (921) slidably connected to the connecting sleeve (1); a clamping spring (922) is fixedly installed on the inner side of the sliding sleeve (921) close to the connecting rod (7); the other end of the clamping spring (922) is fixedly connected to an adsorption plate (923); an electromagnet (924) is fixedly installed on the inner side of the sliding sleeve (921) away from the connecting rod (7); and a clamping rod (925) extending into the connecting sleeve (1) and in contact with the top of the sliding plate (6) is fixedly installed on one end of the adsorption plate (923) connected to the clamping spring (922).

5. The tension detection device for a pneumatic winch according to claim 1, characterized in that: A limiting rod is fixedly installed on the top of the carrying plate (4) and extends through and to the top of the counterweight block (5). The counterweight blocks (5) are multiple in number and are placed longitudinally.

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