Buffering device of mass comparator for large-mass weights

Abstract

The utility model discloses a buffer device for a mass comparator of a large-mass counterweight. The buffer device comprises two buffer mechanisms which are oppositely arranged, each buffer mechanism comprises an upper cross beam, a middle cross beam, a stand column, a weight bearing mechanism and an up-down driving hydraulic tensioning device; the two ends of the upper cross beam are fixed to the top ends of the stand columns on the two sides respectively, the two ends of the middle cross beam are connected to the stand columns on the two sides respectively and can move up and down along the stand columns, the bottom of the middle cross beam is connected to the up-down driving hydraulic tensioning device, and the up-down driving hydraulic tensioning device can drive the middle cross beam to move up and down. And the weight bearing mechanism is detachably mounted on the middle cross beam. The buffer device provided by the utility model is not connected with the mass comparator and can be used as a buffer device of different mass comparators. Moreover, according to the buffer device, the distance, the height and the like of the weight bearing mechanism can be adjusted according to different weights, and the universality is wide. In addition, the device is convenient to install and simple to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of large-mass weight verification, in particular to a buffer device for a large-mass weight mass comparator. Background Art

[0002] The mass comparator is a device for verifying and calibrating weights, which is mainly placed in a laboratory or on a vehicle. When verifying large mass weights of more than 500kg, a forklift is usually used to deliver the weights directly to the mass comparator, which will have a large impact on both the mass comparator and the weights. The main way to alleviate the impact is to have the forklift driver operate the forklift to alleviate the impact, but it is difficult to control by manual operation and prone to errors. In addition, Chinese patent CN217179746U discloses a buffer device for a large-tonnage mass comparator, which adopts a structure in which the buffer device and the mass comparator are integrated, is only applicable to one type of mass comparator, and has a large constraint on the shape of the weights. In addition, there is also a solution of carrying weights by a hydraulic tensioner or a hydraulic jack to achieve buffering, but the hydraulic tensioner or jack is light in weight, not easy to fix, and inconvenient to use. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a buffer device for a large-mass weight mass comparator.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A buffer device for a large-mass weight mass comparator comprises two buffer mechanisms arranged opposite to each other; each buffer mechanism comprises an upper crossbeam, a middle crossbeam, a column, a weight bearing mechanism and an up-and-down driving hydraulic tensioner; the two ends of the upper crossbeam are respectively fixed to the top ends of the columns on both sides, the two ends of the middle crossbeam are respectively connected to the columns on both sides and can move up and down along the columns, the bottom of the middle crossbeam is connected to the up-and-down driving hydraulic tensioner, and the up-and-down driving hydraulic tensioner can drive the middle crossbeam to move up and down; the weight bearing mechanism is detachably mounted on the middle crossbeam.

[0006] Furthermore, the weight bearing mechanism comprises a supporting claw, the upper end of the supporting claw is clamped and fixed to the middle cross beam, and the lower end of the supporting claw is provided with a weight bearing platform.

[0007] Furthermore, each buffer mechanism includes a base and a dovetail guide rail, the lower ends of the columns on both sides are fixed to the top of the base, and the up and down driving hydraulic tensioner is installed on the top of the base; the dovetail guide rail is arranged at the bottom of the base, and the base can move horizontally and linearly along the dovetail guide rail toward or away from another buffer mechanism.

[0008] Furthermore, each of the bases is connected to a horizontally driven hydraulic tensioner, and the horizontally driven hydraulic tensioner can drive the base to move horizontally and linearly along the dovetail guide rail.

[0009] Furthermore, a reserved hole for steel wire is provided in the middle of the middle cross beam.

[0010] The beneficial effects of the utility model are: the buffer device of the utility model is not connected to the mass comparator, and can be used as a buffer device of different mass comparators. Moreover, the buffer device of the utility model can adjust the distance, height and other aspects of the weight bearing mechanism according to different weights, and has wide versatility. In addition, the utility model is easy to install and simple to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the buffer device in the embodiment of the utility model. DETAILED DESCRIPTION

[0012] The present invention will be further described below in conjunction with the accompanying drawings. It should be noted that this embodiment is based on the technical solution and provides a detailed implementation method and a specific operation process, but the protection scope of the present invention is not limited to this embodiment.

[0013] This embodiment provides a large mass weight mass comparator buffer device, such as Figure 1 As shown, it includes two buffer mechanisms arranged opposite to each other; each buffer mechanism includes an upper crossbeam 1, a middle crossbeam 2, a column 3, a weight bearing mechanism and an up and down driving hydraulic tensioner 10; the two ends of the upper crossbeam 1 are respectively fixed to the top ends of the columns 3 on both sides, the two ends of the middle crossbeam 2 are respectively connected to the columns 3 on both sides and can move up and down along the columns 3, the bottom of the middle crossbeam 2 is connected to the up and down driving hydraulic tensioner 10, and the up and down driving hydraulic tensioner 10 can drive the middle crossbeam 2 to move up and down; the weight bearing mechanism is detachably installed on the middle crossbeam 2.

[0014] In this embodiment, the weight bearing mechanism comprises a supporting claw 4 , the upper end of the supporting claw 4 is clamped and fixed to the middle cross beam 2 , and the lower end of the supporting claw 4 is provided with a weight bearing platform 5 .

[0015] In this embodiment, each buffer mechanism includes a base 7 and a dovetail guide rail 8, the lower ends of the columns 3 on both sides are fixed to the top of the base 7, and the up and down driving hydraulic tensioner 10 is installed on the top of the base 7; the dovetail guide rail 8 is arranged at the bottom of the base 7, and the base 7 can move horizontally and linearly along the dovetail guide rail 8 toward or away from another buffer mechanism.

[0016] More specifically, in this embodiment, each of the bases 7 is connected to a horizontally driven hydraulic tensioner 9 , and the horizontally driven hydraulic tensioner 9 can drive the base 7 to move horizontally and linearly along the dovetail guide rail 8 .

[0017] In this embodiment, a wire reserved hole 6 is provided in the middle of the middle cross beam 2. Through the wire reserved hole 6, a wire rope or other flexible material load-bearing device can be installed between the middle cross beams 2 of the two buffer mechanisms according to the shape of the weight to realize the weight bearing.

[0018] When in use, place the two buffer mechanisms on the mass comparator, and according to the shape and size of the weights and the placement requirements, use the horizontal drive hydraulic tensioners of the two buffer mechanisms to synchronously drive the two buffer mechanisms to move to a suitable distance between the two weight bearing mechanisms, and use the up and down drive hydraulic tensioners to synchronously adjust the weight bearing mechanisms on the two buffer mechanisms to a suitable height. Then use a forklift to place the weights directly on the weight bearing mechanisms of the two buffer mechanisms, and then start to use the mass comparator to calibrate the weights. In addition, the weight bearing mechanism can be customized according to the actual needs of the weights, and can also be replaced.

[0019] In actual application, a grating ruler can be installed on the two buffer mechanisms to measure the distance between the two buffer mechanisms. In addition, the two upper and lower driving hydraulic tensioners and the two horizontal driving hydraulic tensioners are synchronously controlled by the servo hydraulic station.

[0020] For those skilled in the art, various corresponding changes and modifications can be made according to the above technical solutions and concepts, and all of these changes and modifications should be included in the protection scope of the claims of the utility model.

Claims

1. A buffer device for a large mass weight mass comparator, characterized in that: The invention comprises two buffer mechanisms which are arranged opposite to each other; each buffer mechanism comprises an upper crossbeam (1), a middle crossbeam (2), a column (3), a weight bearing mechanism and an up-and-down driving hydraulic tensioner (10); the two ends of the upper crossbeam (1) are respectively fixed to the top ends of the columns (3) on both sides; the two ends of the middle crossbeam (2) are respectively connected to the columns (3) on both sides and can move up and down along the columns (3); the bottom of the middle crossbeam (2) is connected to the up-and-down driving hydraulic tensioner (10); the up-and-down driving hydraulic tensioner (10) can drive the middle crossbeam (2) to move up and down; the weight bearing mechanism is detachably mounted on the middle crossbeam (2).

2. The large mass weight mass comparator buffer device according to claim 1, characterized in that: The weight bearing mechanism comprises a supporting claw (4), the upper end of the supporting claw (4) is clamped and fixed to the middle cross beam (2), and the lower end of the supporting claw (4) is provided with a weight bearing platform (5).

3. The buffer device of the large mass weight mass comparator according to claim 1, characterized in that: Each buffer mechanism comprises a base (7) and a dovetail guide rail (8); the lower ends of the columns (3) on both sides are fixed to the top of the base (7); the up and down driving hydraulic tensioner (10) is installed on the top of the base (7); the dovetail guide rail (8) is arranged at the bottom of the base (7); the base (7) can move horizontally and linearly along the dovetail guide rail (8) in a direction close to or away from another buffer mechanism.

4. The buffer device of the large mass weight mass comparator according to claim 3, characterized in that: The bases (7) are all connected to a horizontally driven hydraulic tensioner (9), and the horizontally driven hydraulic tensioner (9) can drive the base (7) to move horizontally and linearly along the dovetail guide rail (8).

5. The buffer device of the large mass weight mass comparator according to claim 1, characterized in that: A steel wire reserved hole (6) is provided in the middle of the middle cross beam (2).

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