CN212963974U

CN212963974U - Lever block test device

Info

Publication number: CN212963974U
Application number: CN202021744559.2U
Authority: CN
Inventors: 刑普学; 李强; 裴明慧; 魏巍; 李立光; 严建荣; 胡立; 段国强; 董照霞; 程玉荣; 李雪梅; 葛雪
Original assignee: State Grid Corp of China SGCC; Anhui Power Transmission and Transformation Engineering Co Ltd
Current assignee: State Grid Corp of China SGCC; Anhui Power Transmission and Transformation Engineering Co Ltd
Priority date: 2020-08-19
Filing date: 2020-08-19
Publication date: 2021-04-13
Anticipated expiration: 2030-08-19

Abstract

The utility model relates to a lifting apparatus field discloses a lever block test device, including supporting component, rotating assembly, connecting rod, clamping component, drive assembly, fine motion caliber and controller. The top of the supporting component is provided with a rotating shaft, the rotating component is movably sleeved outside the rotating shaft, the connecting rod is arranged on the outer side of the rotating component and can rotate relative to the rotating component, the clamping component is connected to the connecting rod in a sliding mode and used for clamping a handle of the lever block, the output end of the driving component is connected with the clamping component in a rotating mode, and the micro-motion measurer is attached to the main chain of the lever block in a clinging mode. The utility model discloses a mutually supporting of drive assembly and clamping components presss from both sides the handle of lever block tightly and drives lever block round trip to rotate thereby it tests to lever block, and this process does not need the manual work to carry out the pulling handle that relapses, has reduced intensity of labour, has improved test efficiency.

Description

Lever block test device

Technical Field

The utility model relates to a lifting apparatus field specifically relates to a lever block test device.

Background

The lever block is a manual hoisting tool which is simple to use and convenient to carry. The lever block can be used for lifting, drawing, descending, calibrating and the like. The lifting capacity generally does not exceed 50T. The device is widely applied to equipment installation, object hoisting, part drawing and the like in the industries of shipbuilding, electric power, transportation, building, mine, post and telecommunications and the like.

In order to ensure normal work and reliable braking of the lever block, a load test needs to be carried out on the lever block to test whether the mechanisms operate flexibly and whether the lever block is blocked or loosened. The traditional load test is detected by the operator pulling the handle back and forth. This kind of mode needs the staff to pull the handle repeatedly at least 300 times, and is great to staff's physical demands, leads to work efficiency low, intensity of labour is big.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lever block test device, this lever block test device make a round trip to pull the handle in order to reach experimental effect through drive assembly, has reduced intensity of labour, has improved work efficiency.

In order to achieve the above object, the utility model provides an lever block testing device, include:

the top of the supporting component is provided with a rotating shaft;

the rotating assembly is movably sleeved on the outer side of the rotating shaft;

the connecting rod is arranged on the outer side of the rotating assembly and can rotate relative to the rotating assembly;

the clamping assembly is connected to the connecting rod in a sliding mode and used for clamping a handle of the lever block;

the output end of the driving assembly is rotationally connected with the clamping assembly and is used for driving the clamping assembly to rotate back and forth around the rotating assembly;

the micro-motion measurer is closely attached to the main chain of the lever block and used for measuring the moving distance of the main chain;

a controller to:

and controlling the driving assembly to drive the clamping assembly to rotate back and forth around the rotating assembly and controlling the micro-measurer to measure the moving distance of the main chain.

Preferably, the supporting component comprises upright bases arranged in pairs and uprights arranged on the upright bases, the uprights can stretch relative to the upright bases, and the rotating shaft is arranged at the tops of the two uprights.

Preferably, the stand all is provided with a plurality of relative jack with the outside of stand base, the jack configuration bolt.

Preferably, the rotating assembly comprises a movable plate sleeved on the rotating shaft, a bearing arranged on the movable plate and a swing arm shaft arranged on the bearing, and the bearing is fixedly connected with the connecting rod.

Preferably, clamping component includes sliding connection in the connecting rod first slider, set up in the spliced pole of first slider bottom, run through the stud of spliced pole, overlap respectively and locate two nuts on the stud two head screw, set up respectively in two connecting plates in the two nut outsides, respectively vertically set up in two rotation axises of two connecting plate tip and set up respectively in two clamping jaws of two rotation axis sides, set up in the adjust knob of stud one end, it is rotatory to drive stud when adjust knob is rotatory, stud drives two nut opposite motions or motion dorsad, and then makes the clamping jaw loosen or press from both sides tightly through the effect of connecting plate and rotation axis the handle.

Preferably, the inner side of the clamping jaw is provided with an asbestos brake band.

Preferably, the driving assembly comprises a first adjusting rod and a first air cylinder rotatably connected to the top of the first adjusting rod, and the output end of the first air cylinder is rotatably connected with the clamping assembly through a connecting piece.

Preferably, the micro-motion measurer comprises a second adjusting rod, a mounting frame arranged on the second adjusting rod, a guide rod arranged on the mounting frame, a first bearing movably sleeved on the guide rod through a bearing seat, a friction wheel and a large gear which are connected to the first bearing through a shaft, a second cylinder driving the first bearing to move along the guide rod, a small gear engaged with the large gear, and an encoder connected to the small gear through a shaft.

Preferably, the lever block testing device further comprises a switching assembly connected to the connecting rod in a sliding mode, and the switching assembly is used for rotating a steering shifting block on the lever block so as to change the direction of the chain.

Preferably, the switching component comprises a second sliding block connected to the connecting rod in a sliding mode, a rotary cylinder arranged at the bottom of the second sliding block, a rotary head arranged at the output end of the rotary cylinder, and a clamping head arranged on the rotary head, wherein the clamping head is clamped with the steering shifting block.

The utility model discloses a mutually supporting of drive assembly and clamping components presss from both sides the handle of lever block tightly and drives lever block round trip to rotate thereby it tests to lever block, and this process does not need the manual work to carry out the pulling handle that relapses, has reduced intensity of labour, has improved test efficiency.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram (without a micro-motion measuring device) of a lever block testing device according to an embodiment of the present invention;

FIG. 2 shows a side view of FIG. 1 (without the drive assembly);

FIG. 3 shows a cross-sectional view taken along plane A-A of FIG. 2;

fig. 4 is a schematic structural view of a micro-motion measuring device of the lever block testing device according to an embodiment of the present invention;

fig. 5 shows a side view of fig. 4.

In the figure:

1. supporting component 11 and upright column base

12. Upright column 13 and jack

2. Rotating shaft 3 and rotating assembly

31. Moving plate 32, bearing

33. Swing arm shaft 4 and connecting rod

5. Clamping assembly 51, first slider

52. Connecting post 53 and stud bolt

54. Nut 55, connecting plate

56. Rotating shaft 57 and clamping jaw

58. Adjusting knob 6 and driving assembly

61. First adjusting rod 62 and first cylinder

7. Vernier measurer 71, second adjusting lever

72. Mounting bracket 73, guide bar

74. First bearing 75, friction wheel

76. Bull gear 77, second cylinder

78. Pinion 79 and encoder

8. Switching component 81 and second sliding block

82. Rotary cylinder 83, rotary head

84. Chuck head

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

Fig. 1 is a schematic structural diagram (without a micro-motion measuring device) of a lever block testing device according to an embodiment of the present invention; fig. 4 is a schematic structural view of a micro-motion measuring device of the lever block testing device according to an embodiment of the present invention; referring to fig. 1 and 4, the present embodiment discloses a lever block testing apparatus, which may include:

the top of the supporting component 1 is provided with a rotating shaft 2;

the rotating component 3 is movably sleeved on the outer side of the rotating shaft 2;

the connecting rod 4 is arranged outside the rotating component 3, and can rotate relative to the rotating component 3;

the clamping assembly 5 is connected to the connecting rod 4 in a sliding mode and used for clamping a handle of the lever block;

the output end of the driving assembly 6 is rotatably connected with the clamping assembly 5 and is used for driving the clamping assembly 5 to rotate back and forth around the rotating assembly 3;

the micro-motion measurer 7 is closely attached to the main chain of the lever block and used for measuring the moving distance of the main chain;

a controller, the controller to:

the control drive assembly 6 drives the clamping assembly 5 to rotate back and forth around the rotating assembly 3 and controls the micro-measurer 7 to measure the moving distance of the main chain.

When the lever block is detected, firstly, the lever block is fixed, the lifting times and the interval time are set, a hook of the lever block is connected with a test weight, the weight is lifted through a lifting mechanism to enable the lever block to bear the weight, then one end of a handle is clamped through a clamping assembly 5, a micro-motion measurer 7 is tightly attached to a main chain of the lever block, and a controller controls a driving assembly 6 to move back and forth so as to control the handle to rotate back and forth, so that the lever block is tested. The handle does not need to be pulled repeatedly by manpower in the process, so that the labor intensity is reduced, and the test efficiency is improved.

The supporting assembly 1 may include column bases 11 disposed in pairs and columns 12 disposed on the column bases 11, the columns 12 may extend and retract relative to the column bases 11, and the rotating shaft 2 is disposed at the tops of the two columns 12. That is to say, two upright posts 12 and the rotating shaft 2 form a frame shaped like a Chinese character 'men', and support the whole device, and the upright post base 11 is installed on the ground through anchor bolts. The outside of stand 12 and stand base 11 all is provided with relative a plurality of jack 13, and jack 13 disposes the bolt. When the height is adjusted, only the upright post 12 needs to be adjusted, so that the jacks 13 of different heights on the upright post 12 are opposite to the jacks 13 on the upright post base 11, then the height of the rotating shaft 2 can be adjusted through positioning by the bolts, the height of the clamping component 5 can be adjusted, so that the clamping jaw 57 of the clamping component 5 is at the same height as the handle, the driving component 6 cannot deflect in height when being driven, and the lever block can be better tested and detected.

Referring to fig. 2, the rotating assembly 3 may include a movable plate 31 sleeved on the rotating shaft 2, a bearing 32 disposed on the movable plate 31, and a swing arm shaft 33 disposed on the bearing 32, wherein the bearing 32 is fixedly connected with the connecting rod 4. In order to fix the movable plate 31, a pin is further disposed on the movable plate 31, and when the movable plate 31 slides to a designated position, the movable plate 31 and the rotating shaft 2 can be fixed by the pin. When the rotating assembly 3 is in operation, the connecting rod 4 is first rotated, which rotates the bearing 32 around the swing arm shaft 33.

The clamping assembly 5 comprises a first sliding block 51 connected to the connecting rod 4 in a sliding manner, a connecting column 52 arranged at the bottom of the first sliding block 51, a stud 53 penetrating through the connecting column 52, two nuts 54 respectively sleeved on two head threads of the stud 53, two connecting plates 55 respectively arranged on the outer sides of the two nuts 54, two rotating shafts 56 respectively vertically arranged at the end parts of the two connecting plates 55, two clamping jaws 57 respectively arranged on the side surfaces of the two rotating shafts 56, and an adjusting knob 58 arranged at one end of the stud 53, wherein the stud 53 is driven to rotate when the adjusting knob 58 rotates, the stud 53 drives the two nuts 54 to move in opposite directions or move in opposite directions, and the clamping jaws 57 loosen or clamp the handle under the action of the connecting plates 55 and the rotating shafts 56. When the handle is clamped, the adjusting knob 58 is first rotated to move the two nuts 54 back to back, at this time, the end of the connecting plate 55 connected with the nuts 54 rotates, the rotating shaft 56 is driven to rotate, and the rotating shaft 56 drives the clamping jaws 57 to rotate while rotating, so that the two clamping jaws 57 approach to each other to clamp the handle. In addition, the asbestos brake band is arranged on the inner side of the clamping jaw 57, so that the friction force between the clamping jaw 57 and the handle can be improved, the clamping jaw 57 can be clamped more tightly, and the clamping jaw 57 cannot fall off in the test process.

The driving assembly 6 comprises a first adjusting rod 61 and a first cylinder 62 rotatably connected to the top of the first adjusting rod 61, and the output end of the first cylinder 62 is rotatably connected with the clamping assembly 5 through a connecting member. The height of the first adjusting rod 61 can be adjusted, and the first adjusting rod 61 can be set to be a telescopic rod in an adjusting mode, and the height of the first adjusting rod can also be adjusted by using the supporting assembly 1. When the clamping assembly 5 is driven, the first air cylinder 62 stretches and retracts to enable the clamping assembly 5 to drive the handle to rotate back and forth. The cylinder diameter of the first cylinder 62 is 40mm, the stroke is 380mm, and the two ends of the first cylinder 62 are also provided with magnetic switches, the magnetic switches are used for detecting the position of the cylinder stroke, a mechanical control valve (or a stroke switch) and a mounting frame thereof do not need to be arranged at the two ends of the stroke, and a collision block does not need to be arranged at the end part of a piston rod. The magnetic switch of the cylinder is mainly used as a position signal to be provided for the controller, and the controller detects whether the magnetic switch signal exists or not, so that the position control, in-place stop and in-place start of the cylinder are realized, and the magnetic switch is convenient to use, compact in structure, high in reliability, long in service life, low in cost and quick in switch response time.

Fig. 4 is a schematic structural view of a micro-motion measuring device of the lever block testing device according to an embodiment of the present invention; fig. 5 shows a side view of fig. 4, and referring to fig. 4 and 5, the micro-motion measuring device 7 may include a second adjusting rod 71, a mounting bracket 72 disposed on the second adjusting rod 71, a guide rod 73 disposed on the mounting bracket 72, a first bearing 74 movably sleeved on the guide rod 73 through a bearing seat, a friction wheel 75 and a large gear 76 connected to the first bearing 74 through a shaft, a second cylinder 77 driving the first bearing 74 to move along the guide rod 73, a small gear 78 engaged with the large gear 76, and an encoder 79 connected to the small gear 78 through a shaft. As shown in fig. 4, in this embodiment, a pair of guide rods 73 are provided at both ends of the mounting bracket 72, and the first bearings 74 are also provided in pairs, so that the symmetrical arrangement can better move the friction wheel 75. When the displacement of the main chain is measured, the second cylinder 77 pushes the friction wheel 75 to be tightly attached to the main chain of the lever block, when the main chain moves, the friction wheel 75 is driven to rotate, the friction wheel 75 rotates to drive the large gear 75 to rotate, the large gear 75 drives the small gear 78 to rotate, the encoder 79 acquires the rotation angle of the small gear 78 and converts the rotation angle signal into a main chain moving distance signal, and therefore the main chain moving distance is acquired.

Referring to fig. 2, the lever block testing apparatus further includes a switching assembly 8 slidably connected to the connecting rod 4, and the switching assembly 8 is used for rotating a steering shifting block on the lever block so as to change the direction of the chain. When the chain of the lever block is switched to the upward or downward direction, the steering shifting block does not need to be manually shifted, the operation is more convenient and faster, and the working efficiency is improved. Specifically, the switching assembly 8 includes a second sliding block 81 slidably connected to the connecting rod 4, a rotating cylinder 82 disposed at the bottom of the second sliding block 81, a rotating head 83 disposed at the output end of the rotating cylinder 82, and a chuck 84 disposed on the rotating head 83, wherein the chuck 84 is engaged with the steering shifting block (as shown in fig. 3). When changing to the shifting block, at first adjust conversion subassembly 8's height through supporting component 1 for buckle 84 is in same horizontal plane with turning to the shifting block, then with dop 84 and the shifting block that turns to, start revolving cylinder 82 and rotate, make dop 84 drive turn to the shifting block rotate the switching-over can, convenient and fast.

Specifically, when the lever block is measured, the detection block is firstly arranged at a fixed position, the adjusting knob is manually rotated to clamp the handle and install the lifting control button, the hook of the lever block is connected with a test weight, and the weight is lifted through the lifting mechanism to enable the lever block to bear the weight. And setting the lifting times and the interval time. The first cylinder 62 drives the handle to swing to implement the main chain lifting. The lifting conversion is completed by the conversion component 8. The main chain micro-motion measurer 7 completes the main chain distance measurement work.

Recording and outputting test results: the test data is read by the encoder 79 of the micro-motion measuring device 7, and the measuring interval is the value of the encoder 79 in four states of ascending, stopping, descending and stopping. The device can realize the curve printout of four intervals and can also display on a screen. And test data reports collected on site can be printed.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention. It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. A lever block test device is characterized by comprising:

the top of the supporting component (1) is provided with a rotating shaft (2);

the rotating component (3), the said rotating component (3) is connected to the outside of the spindle (2) movably;

the connecting rod (4) is arranged on the outer side of the rotating assembly (3), and the connecting rod (4) can rotate relative to the rotating assembly (3);

the clamping assembly (5) is connected to the connecting rod (4) in a sliding mode, and is used for clamping a handle of the lever block;

the output end of the driving component (6) is rotatably connected with the clamping component (5) and is used for driving the clamping component (5) to rotate around the rotating component (3) back and forth;

the micro-motion measurer (7), the micro-motion measurer (7) is tightly attached to the main chain of the lever block and is used for measuring the moving distance of the main chain;

a controller to:

and controlling the driving assembly (6) to drive the clamping assembly (5) to rotate back and forth around the rotating assembly (3) and controlling the micro-motion measurer (7) to measure the moving distance of the main chain.

2. A lever block testing device according to claim 1, wherein the supporting assembly (1) comprises column bases (11) arranged in pairs and columns (12) arranged on the column bases (11), the columns (12) can be extended and retracted relative to the column bases (11), and the rotating shaft (2) is arranged on the tops of the two columns (12).

3. A lever block testing device according to claim 2, wherein the outer sides of the upright column (12) and the upright column base (11) are respectively provided with a plurality of opposite insertion holes (13), and the insertion holes (13) are provided with bolts.

4. The lever block testing device according to claim 1, wherein the rotating assembly (3) comprises a movable plate (31) sleeved on the rotating shaft (2), a bearing (32) arranged on the movable plate (31), and a swing arm shaft (33) arranged on the bearing (32), and the bearing (32) is fixedly connected with the connecting rod (4).

5. A lever block testing device according to claim 1, wherein the clamping assembly (5) comprises a first sliding block (51) slidably connected to the connecting rod (4), a connecting column (52) disposed at the bottom of the first sliding block (51), a stud bolt (53) penetrating through the connecting column (52), two nuts (54) respectively sleeved on two threads of the stud bolt (53), two connecting plates (55) respectively disposed at the outer sides of the two nuts (54), two rotating shafts (56) respectively vertically disposed at the ends of the two connecting plates (55), two clamping jaws (57) respectively disposed at the side surfaces of the two rotating shafts (56), and an adjusting knob (58) disposed at one end of the stud bolt (53), the adjusting knob (58) drives the stud bolt (53) to rotate when rotating, the stud bolt (53) drives the two nuts (54) to move towards each other or move away from each other, the clamping jaw (57) loosens or clamps the handle through the action of the connecting plate (55) and the rotating shaft (56).

6. An arm block testing device according to claim 5, characterized in that the inside of the clamping jaw (57) is provided with asbestos brake tape.

7. A lever block testing device according to claim 1, wherein the driving assembly (6) comprises a first adjusting rod (61), a first cylinder (62) rotatably connected to the top of the first adjusting rod (61), and the output end of the first cylinder (62) is rotatably connected to the clamping assembly (5) through a connecting member.

8. The lever block testing device according to claim 1, wherein the inching measurer (7) comprises a second adjusting rod (71), a mounting frame (72) arranged on the second adjusting rod (71), a guide rod (73) arranged on the mounting frame (72), a first bearing (74) movably sleeved on the guide rod (73) through a bearing seat, a friction wheel (75) and a large gear (76) which are connected to the first bearing (74) through a shaft, a second cylinder (77) which drives the first bearing (74) to move along the guide rod (73), a small gear (78) engaged with the large gear (76), and an encoder (79) which is connected to the small gear (78) through a shaft.

9. The lever block testing device according to claim 1, further comprising a switching assembly (8) slidably connected to the connecting rod (4), wherein the switching assembly (8) is configured to rotate a steering block on the lever block to change the direction of the chain.

10. A lever block testing device according to claim 9, wherein said switching assembly (8) comprises a second sliding block (81) slidably connected to the connecting rod (4), a rotating cylinder (82) disposed at the bottom of the second sliding block (81), a rotating head (83) disposed at the output end of the rotating cylinder (82), and a chuck (84) disposed on the rotating head (83), said chuck (84) being engaged with said steering block.