Strength testing device for European-style electric hoist

Abstract

The utility model discloses a European-style electric hoist strength testing device, which comprises a bottom plate, a supporting assembly, a testing body, a weight increasing weight, a suspension assembly and a connecting assembly, and is characterized in that the supporting assembly is mounted at the top end of the bottom plate; the testing body is detachably mounted at the top of the supporting assembly; the weight increasing weight is placed on the top of the bottom plate, is located on the inner side of the supporting assembly and is connected with the testing body through the hanging assembly; the connecting assembly is arranged between two adjacent groups of weight increasing weights; the connecting assembly comprises a sleeve, a connecting piece, clamping teeth, a rotating ring, meshing teeth, a winding wheel, a steel wire rope and a lead screw. Therefore, under the condition that the electric hoist does not descend, the weight can be quickly and accurately connected with the tested electric hoist, the situation that an operator frequently operates the electric hoist to ascend and descend is avoided, the burden of workers is relieved, and the testing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of strength testing devices, in particular to a European-style electric hoist strength testing device. Background Art

[0002] Electric hoist is a special lifting equipment. It has the characteristics of small size, light weight, simple operation and easy use. It is used in industrial and mining enterprises, warehouses, docks and other places.

[0003] According to relevant technical requirements, electric hoists must undergo a series of rigorous tests before leaving the factory to ensure their stable performance, safety and reliability. Among them, the static load test is particularly critical as an important step in evaluating the strength of European electric hoists.

[0004] However, the static load test method commonly used at present mainly relies on adding weights to achieve gradual weight increase. Although this method can evaluate the static load performance of the electric hoist, in actual operation, due to the heavy weight of the weight, the tester needs to hang the weight under the electric hoist and then lift the electric hoist to the predetermined position. This process not only increases the burden on the workers, but also increases the complexity and time cost of the test, affecting the test efficiency. Utility Model Content

[0005] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0006] To this end, one purpose of the utility model is to propose a European-style electric hoist strength testing device, which can quickly and accurately connect the weights to the electric hoist being tested without the electric hoist descending, thereby avoiding the operator from frequently operating the electric hoist to lift and lower, which not only reduces the burden on workers but also improves testing efficiency.

[0007] In order to achieve the above-mentioned purpose, the utility model proposes a European-style electric hoist strength test device, comprising a base plate, a support assembly, a test body, a weight-added weight, a suspension assembly and a connection assembly, wherein the support assembly is installed on the top of the base plate; the test body is detachably installed on the top of the support assembly; the weight-added weight is placed on the top of the base plate, and the weight-added weight is arranged on the inner side of the support assembly, and the weight-added weight is connected to the test body through the suspension assembly; the connection assembly is arranged between two adjacent groups of the weight-added weights ; The connecting assembly includes a sleeve, a connecting piece, a latch, a rotating ring, meshing teeth, a winding wheel, a wire rope and a lead screw, wherein the sleeve is fixedly connected to the lead screw, and the lead screw is threadedly connected to the weight-increasing weight, the winding wheel slides into the interior of the sleeve, a wire rope is wound on the outer side of the winding wheel, and the wire rope is meshed with the weight-increasing weight, the rotating ring is fixedly connected to the winding wheel, and a plurality of groups of meshing teeth are fixedly connected to the outer side of the rotating ring; the interior of the sleeve is hinged with latches through the connecting piece, and the latches are meshed with the meshing teeth.

[0008] The European-style electric hoist strength testing device of the utility model can complete the static load test of the test body by means of the weight-added weights when testing, and at the same time can connect two sets of weight-added weights by means of the provided connection assembly, and then the test body can be raised, thus avoiding the step of lowering the test body to suspend the weight-added weights, and can realize the fast and accurate connection of the weights to the tested electric hoist without the electric hoist being lowered, thus avoiding the operator from frequently operating the electric hoist for lifting and lowering, which not only reduces the burden on the workers but also improves the test efficiency.

[0009] In addition, the European-style electric hoist strength test device proposed in the application may also have the following additional technical features:

[0010] Specifically, the support assembly includes a support plate and a mounting plate, wherein the support plate is fixedly connected to the base plate, the mounting plate is fixedly connected to the support plate, and the test body is detachably mounted on the top of the mounting plate.

[0011] Specifically, the suspension assembly includes an insertion rod, a steel cable and a locking assembly, wherein the steel cable is fixedly connected to the insertion rod, the insertion rod is clamped with the weight-added weight, and the steel cable is connected to the test body through the locking assembly.

[0012] Specifically, the locking assembly includes a connecting frame, a connecting rod, a screw sleeve and a screw rod, wherein the connecting frame is fixedly connected to the steel cable, the top of the front surface of the connecting frame is fixedly connected to the connecting rod, the screw sleeve is slidably sleeved on the outside of the connecting rod, the screw rod is fixedly connected to the connecting frame, and the bottom thread of the screw sleeve is sleeved on the screw rod.

[0013] Specifically, a torsion spring is installed between the connecting member and the latching tooth.

[0014] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a schematic structural diagram of a European-style electric hoist strength test device according to an embodiment of the utility model;

[0017] Figure 2 For this utility model Figure 1 The enlarged structural diagram at A in the middle;

[0018] Figure 3 For this utility model Figure 1 The enlarged structural diagram at B in the middle;

[0019] Figure 4 It is a schematic diagram of the left side structure of the connecting component of the utility model.

[0020] As shown in the figure: 1. Base plate; 2. Support assembly; 21. Support plate; 22. Mounting plate; 3. Test body; 4. Weight; 5. Suspension assembly; 51. Insert rod; 52. Steel cable; 53. Lock assembly; 531. Connecting frame; 532. Connecting rod; 533. Screw sleeve; 534. Screw; 6. Connecting assembly; 61. Sleeve; 62. Connecting piece; 63. Gear; 64. Rotating ring; 65. Engaging teeth; 66. Winding wheel; 67. Steel wire rope; 68. Screw. DETAILED DESCRIPTION

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention. On the contrary, the embodiments of the present invention include all changes, modifications, and equivalents that fall within the spirit and connotation of the appended claims.

[0022] The European style electric hoist strength testing device of the utility model embodiment is described below in conjunction with the accompanying drawings.

[0023] The European-style electric hoist strength testing device provided by the embodiment of the utility model can be used to test the strength of the electric hoist. It can quickly and accurately connect the weight to the tested electric hoist without the electric hoist descending, avoiding the operator from frequently operating the electric hoist to lift or lower, which not only reduces the burden on the workers but also improves the testing efficiency.

[0024] like Figure 1-Figure 3 As shown, the European-style electric hoist strength testing device of the embodiment of the utility model may include a base plate 1, a support assembly 2, a test body 3, a weight-added weight 4, a suspension assembly 5 and a connection assembly 6.

[0025] It should be noted that in order to reduce the damage caused to the ground through the bottom plate 1 by the weighted weight 4 when it falls, a rubber plate can be installed at the bottom of the bottom plate 1.

[0026] The supporting assembly 2 is installed on the top of the base plate 1 .

[0027] It can be understood that the installation of the test body 3 on the base plate 1 is completed under the action of the support assembly 2 .

[0028] The test body 3 is detachably mounted on the top of the support assembly 2 .

[0029] It should be noted that the test body 3 described in the above embodiment is a European electric hoist.

[0030] The weight-added weight 4 is placed on the top of the bottom plate 1 , and the weight-added weight 4 is arranged on the inner side of the support assembly 2 , and the weight-added weight 4 is connected to the test body 3 through the suspension assembly 5 .

[0031] It should be noted that the weight-increasing weight 4 described in the above embodiment is arranged in a rectangular structure.

[0032] The connecting assembly 6 is arranged between two adjacent groups of weight-added weights 4 ; the connecting assembly 6 may include a sleeve 61 , a connecting member 62 , a latching tooth 63 , a rotating ring 64 , meshing teeth 65 , a winding wheel 66 , a steel wire rope 67 and a lead screw 68 .

[0033] It should be noted that the connecting member 62 , the latching teeth 63 and the meshing teeth 65 described in the above embodiments are all provided in several groups.

[0034] Among them, the sleeve 61 is fixedly connected to the screw 68, and the screw 68 is threadedly connected to the weight-added weight 4, the winding wheel 66 is slidably inserted into the interior of the sleeve 61, and a steel wire rope 67 is wound on the outer side of the winding wheel 66, and the steel wire rope 67 is clamped with the weight-added weight 4, the rotating ring 64 is fixedly connected to the winding wheel 66, and multiple groups of meshing teeth 65 are fixedly connected to the outer side of the rotating ring 64.

[0035] As a possible situation, a rotating handle may be installed at the front end of the winding wheel 66 to facilitate the rotation of the winding wheel 66 .

[0036] It can be understood that by pushing the winding wheel 66 and the rotating ring 64 into the sleeve 61, and preventing the winding wheel 66 from reversing due to the abutment of the meshing teeth 65 and the locking teeth 63, and rotating the winding wheel 66 to tighten the wire rope 67, another set of weighted weights 4 can be connected to the previous set of weighted weights 4, and the lifting of the test body 3 can be achieved at the same time, so as to achieve the effect of suspending multiple sets of weighted weights 4 for static load testing.

[0037] A latching tooth 63 is hingedly connected inside the sleeve 61 via a connecting piece 62 , and the latching tooth 63 is latched with the meshing tooth 65 .

[0038] It is understandable that, since the latch 63 is hinged on the connecting member 62, the latch 63 will not affect the rotation of the winding wheel 66 when the winding wheel 66 rotates forward, and when the winding wheel 66 rotates reversely, the latch 63 and the meshing tooth 65 will abut against each other to prevent the winding wheel 66 from reversing.

[0039] Specifically, in the actual operation process, when the relevant personnel test the test body 3, they first install the test body 3 on the support assembly 2, and complete the suspension of the weighted weights 4 on the test body 3 under the action of the suspension assembly 5. When it is necessary to gradually increase the number of weighted weights 4, the wire rope 67 is connected to the previous group of weighted weights 4, and then the sleeve 61 is connected to the next group of weighted weights 4 through the screw 68, the winding wheel 66 and the rotating ring 64 are pushed into the sleeve 61, and the winding wheel 66 is prevented from reversing under the action of the abutment of the meshing teeth 65 and the latching teeth 63. At the same time, the winding wheel 66 is rotated to tighten the wire rope 67, and the test body 3 rises upward to suspend the weighted weights 4 at the bottom in the air, so as to achieve the effect of gradually increasing the weighted weights 4, and can achieve the weights quickly and accurately connected to the tested electric hoist without the electric hoist descending, so as to avoid the operator frequently operating the electric hoist to lift and lower, which not only reduces the burden on the workers but also improves the test efficiency.

[0040] In one embodiment of the present invention, Figure 1-Figure 2 As shown, the support assembly 2 may include a support plate 21 and a mounting plate 22 .

[0041] The support plate 21 is fixedly connected to the base plate 1 , the mounting plate 22 is fixedly connected to the support plate 21 , and the test body 3 is detachably mounted on the top of the mounting plate 22 .

[0042] It can be understood that the above-mentioned mounting plate 22 plays the role of mounting the test body 3 , and at the same time, under the action of the support plate 21 , the mounting plate 22 is supported on the base plate 1 .

[0043] In one embodiment of the present invention, Figure 1-Figure 2 As shown, the suspension assembly 5 may include a plunger 51 , a steel cable 52 and a locking assembly 53 .

[0044] It should be noted that the pulling force of the connecting member 62 described in the above embodiment is several times greater than the weight of the weight-added weight 4 .

[0045] The steel cable 52 is fixedly connected to the insertion rod 51 , the insertion rod 51 is clamped with the weight 4 , and the steel cable 52 is connected to the test body 3 through the locking assembly 53 .

[0046] The steel cable 52 is connected to the weight 4 through the insertion rod 51 , and under the action of the locking assembly 53 , the steel cable 52 is suspended on the test body 3 .

[0047] In one embodiment of the present invention, Figure 1-Figure 2 As shown, the locking assembly 53 may include a connecting frame 531 , a connecting rod 532 , a threaded sleeve 533 and a screw rod 534 .

[0048] It should be noted that the connection frame 531 described in the above embodiment is arranged in an elliptical structure.

[0049] Among them, the connecting frame 531 is fixedly connected to the steel cable 52, the top of the front surface of the connecting frame 531 is fixedly connected to the connecting rod 532, the screw sleeve 533 is slidably sleeved on the outside of the connecting rod 532, the screw rod 534 is fixedly connected to the connecting frame 531, and the bottom of the screw sleeve 533 is threadedly sleeved on the screw rod 534.

[0050] Specifically, the test body 3 is connected to the connection frame 531 , and then the screw sleeve 533 on the connection rod 532 is slid downward, and the screw sleeve 533 is rotated to connect with the screw rod 534 , so as to achieve the effect of enclosing the test body 3 in the connection frame 531 .

[0051] In one embodiment of the present invention, Figure 1-Figure 2 As shown, a torsion spring is installed between the connecting member 62 and the latching tooth 63 .

[0052] It should be noted that, by adding the torsion spring, the contact stability between the latching tooth 63 and the meshing tooth 65 is increased, thereby preventing the latching tooth 63 from sliding on the meshing tooth 65 .

[0053] In summary, the European-style electric hoist strength testing device of the utility model embodiment can complete the static load test of the test body by adding weights when testing, and at the same time, the two sets of weights can be connected by using the provided connecting assembly, and then the test body can be raised, avoiding the step of lowering the test body to hang the weights, and can achieve the fast and accurate connection of the weights to the tested electric hoist without the electric hoist descending, avoiding the operator from frequently operating the electric hoist to lift and lower, which not only reduces the burden on workers but also improves the test efficiency.

[0054] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0055] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" 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 utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine different embodiments or examples and features of different embodiments or examples described in this specification without contradiction.

[0056] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present invention.

Claims

1. A European-style electric hoist strength test device, characterized in that: It includes a base plate, a support assembly, a test body, a weight-added weight, a suspension assembly and a connection assembly, wherein: The support assembly is mounted on the top of the base plate; The test body is detachably mounted on the top of the support assembly; The weight-added weight is placed on the top of the bottom plate, and the weight-added weight is arranged on the inner side of the support assembly, and the weight-added weight is connected to the test body through the suspension assembly; The connecting assembly is arranged between two adjacent groups of weight-increasing weights; the connecting assembly includes a sleeve, a connecting piece, a latch, a rotating ring, a meshing tooth, a winding wheel, a wire rope and a lead screw, wherein: The sleeve is fixedly connected to the lead screw, and the lead screw is threadedly connected to the weight-increasing weight, the reel is slidably inserted into the interior of the sleeve, a steel wire rope is reeled on the outer side of the reel, the rotating ring is fixedly connected to the reel, and a plurality of groups of meshing teeth are fixedly connected to the outer side of the rotating ring; The interior of the sleeve is hinged with a latching tooth through the connecting piece, and the latching tooth is latched with the meshing tooth.

2. The European electric hoist strength test device according to claim 1, characterized in that: The support assembly includes a support plate and a mounting plate, wherein: The support plate is fixedly connected to the bottom plate, the mounting plate is fixedly connected to the support plate, and the test body is detachably mounted on the top of the mounting plate.

3. The European electric hoist strength test device according to claim 1, characterized in that: The suspension assembly includes a plunger, a steel cable and a locking assembly, wherein: The steel cable is fixedly connected to the insertion rod, the insertion rod is clamped with the weight-added weight, and the steel cable is connected to the test body through the locking assembly.

4. The European electric hoist strength test device according to claim 3 is characterized in that: The locking assembly includes a connecting frame, a connecting rod, a screw sleeve and a screw rod, wherein: The connecting frame is fixedly connected to the steel cable, the top of the front surface of the connecting frame is fixedly connected to the connecting rod, the screw sleeve is slidably sleeved on the outside of the connecting rod, the screw rod is fixedly connected to the connecting frame, and the bottom of the screw sleeve is threadedly sleeved on the screw rod.

5. The European electric hoist strength test device according to claim 1, characterized in that: A torsion spring is installed between the connecting piece and the latching teeth.

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