CN105257558A - Centrifugal pump torque testing rack with stepless height adjusting function - Google Patents

Abstract

The invention provides a centrifugal pump torque test stand capable of stepless height adjustment, comprising a torque meter fixed bracket, a torque meter support bracket and a base connected in sequence; the torque meter fixed bracket includes two identical support bracket side plates and a top plate; The side plates of the support bracket are welded on both sides of the top plate; the side plates of the support bracket are vertically provided with at least two rows of support connection holes symmetrical to the center line; the top plate is provided with a plurality of torque meter fixing holes; They are respectively located outside the side plates of the support bracket; the support bracket of the torque meter includes a side plate of the support bracket, a bottom plate of the support bracket and a rib plate, and the two ends of the rib plate are respectively connected to the side plate of the support bracket and the bottom plate of the support bracket; There are a plurality of waist-shaped holes corresponding to the connecting holes of the multi-row brackets; at least two groups of bracket connecting bolts and matching nuts are arranged in the waist-shaped holes; a plurality of bracket fixing holes are arranged on the bottom plate of the supporting bracket. The invention can conveniently realize the stepless adjustment of the height of the torque meter.

Description

A Centrifugal Pump Torque Test Bench with Stepless Height Adjustment

technical field

The invention belongs to the field of centrifugal pump torque test research, in particular to a centrifugal pump torque test stand capable of stepless height adjustment.

Background technique

Torque is the most frequently involved parameter in the performance test of centrifugal pumps. When measuring torque, the torque meter is usually installed between the motor and the centrifugal pump, and connected to the shafts on both sides through a coupling. The coaxiality between the torque meter and the shaft There are strict requirements, especially for high-precision testing. Since the torque meter has a certain weight, it is necessary to support the torque meter to prevent the shaft from being deformed by force. In order to ensure the coaxiality, the processing accuracy of the support is high, and after processing and forming, the height is difficult to adjust freely, which poses a huge obstacle to the adjustment of the centering of the torque meter and the shaft.

Contents of the invention

In view of the above-mentioned shortcomings in the prior art, the present invention provides a centrifugal pump torque test stand capable of steplessly adjusting the height, so as to solve the difficulty in adjusting the coaxiality of the torque meter during the installation process of the torque meter, and the torque meter stand Problems with high processing requirements.

The present invention achieves the above-mentioned technical purpose through the following technical means.

A centrifugal pump torque test stand capable of stepless height adjustment, comprising a torque meter fixing bracket, a torque meter supporting bracket and a base connected in sequence;

The torque meter fixed bracket includes two identical support bracket side plates and a top plate; the two support bracket side plates are welded on both sides of the top plate; the support bracket side plates are vertically provided with at least two column support connection holes; the top plate is provided with a plurality of torque meter fixing holes;

The torque meter support bracket is divided into two groups, which are respectively located outside the side plate of the support bracket; the torque meter support bracket includes a support bracket side plate, a support bracket bottom plate and a rib plate, and the two ends of the rib plate are respectively connected to the support bracket The side plate of the bracket and the bottom plate of the support bracket; the side plate of the support bracket is provided with a plurality of waist-shaped holes corresponding to the connection holes of the multi-row bracket; the waist-shaped holes are provided with at least two sets of bracket connection bolts and matching nuts ; The bottom plate of the support bracket is provided with a plurality of bracket fixing holes.

Further, the ribs are located at the center of the side plates of the support bracket and the bottom plate of the support bracket.

Further, there are two rows of the bracket connecting holes, and two rows are provided in each row; there are two waist-shaped holes, and the radius of the waist-shaped holes is the same as that of the bracket connecting holes; each of the waist-shaped holes Two sets of bracket connecting bolts and matching nuts are arranged in the shaped holes.

Further, the radius of the bracket connection hole is 4mm.

Further, the material of the support frame side plate, top plate, support frame side plate, support frame bottom plate and rib plate is Q235 steel plate.

Further, the side plates, the top plate, the side plates of the support bracket, and the bottom plate of the support bracket are all rectangular steel plates, and the rib plates are triangular steel plates.

Beneficial effects of the present invention:

A centrifugal pump torque test stand capable of stepless height adjustment according to the present invention combines the torque meter fixing bracket with the bracket connection hole and the torque meter support bracket with the waist hole, so that it can be conveniently The stepless adjustment of the height of the torque meter is realized, which is convenient for the centering of the torque meter; the test bench of the present invention requires low processing precision, low material and processing costs, simple structure, small space occupation, and convenient installation and use; due to the rigid connection, The interference to the test accuracy of the torque meter is small.

Description of drawings

Fig. 1 is a structural diagram of a centrifugal pump torque test stand capable of stepless height adjustment according to the present invention.

Fig. 2 is a schematic diagram of the structure of the torque meter fixing bracket of the present invention.

Fig. 3 is a schematic diagram of the side plate of the support bracket of the present invention.

Fig. 4 is a schematic diagram of the top plate of the present invention.

Fig. 5 is a front view of the torque meter supporting bracket structure according to the present invention.

Fig. 6 is a side view of the torque meter supporting bracket structure according to the present invention.

Fig. 7 is a top view of the torque meter supporting bracket structure according to the present invention.

The reference signs are explained as follows:

1- Torque meter fixing bracket, 2- Torque meter support bracket, 3- Base, 4- Support bracket side plate, 5- Top plate, 6- Bracket connection hole, 7- Support bracket side plate, 8- Support bracket bottom plate, 9- Rib plate, 10-waist hole, 11-support connecting bolt, 12-torque meter, 13-torque meter fixing bolt, 14-torque meter fixing hole, 15-support fixing hole.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

As shown in Figure 1, a centrifugal pump torque test bracket that can be steplessly adjusted in height includes a torque meter fixing bracket 1, a torque meter support bracket 2 and a base 3 connected in sequence;

Described torque meter fixed bracket 1 comprises two identical support bracket side plates 4 and top plate 5, and support bracket side plate 4 and top plate 5 are rectangular steel plates and material is Q235 steel plate; As shown in Figure 2, two described support The support side plate 4 is welded on both sides of the top plate 5; as shown in Figure 3, the support bracket side plate 4 is vertically provided with two rows of support connection holes 6 symmetrical about the midline; as shown in Figure 4, the top plate 5 is provided with a plurality of torque meter fixing holes 14 for connecting the torque meter 12, the position and size of the torque meter fixing holes 14 are determined by the fixing bolt holes of the torque meter 12; specifically, the torque meter fixing bolt 13 is composed of 4 bolts , 4 spring washers, and 4 nuts, the bolts are hexagon head bolts; the nuts are hexagon nuts-C grade, M6 nuts; the spring washers are 8 standard spring washers, which are under the cooperation of 4 nuts Fasten the torque meter 12 on the torque meter fixing bracket 1 .

The torque meter support bracket 2 is two groups, which are respectively located at the outside of the support bracket side plate 4; as shown in Figure 5 and Figure 6, the torque meter support bracket 2 includes a support bracket side plate 7, a support bracket bottom plate 8 and A rib 9, the two ends of the rib 9 are respectively connected to the support bracket side plate 7 and the support bracket bottom plate 8, and the rib 9 is located at the middle position of the support bracket side plate 7 and the support bracket bottom plate 8; the support bracket side plate 7 and the support bracket base plate 8 are rectangular Q235 steel plates, and the rib plate 9 is a triangular Q235 steel plate, which can increase the rigidity of the torque meter support bracket and prevent the support bracket from deforming.

Two waist-shaped holes 10 corresponding to the bracket connection hole 6 are vertically provided on the support bracket side plate 7; the radius of the waist-shaped hole 10 is the same as the radius of the bracket connection hole 6, which is 4mm; Two sets of bracket connecting bolts 11 and matching nuts are arranged in the waist-shaped hole 10; the stepless adjustment of the height of the torque meter is realized through the cooperation of the bracket connecting hole 6, the waist-shaped hole 10, the bracket connecting bolt 11 and the matching nuts, Facilitates the centering of the torque meter. The bracket connecting bolt 11 is made up of 8 bolts, 8 spring washers, and 8 nuts; the bolts are hexagon head bolts; the nuts are hexagon nuts-grade C, M6 nuts; the spring washers are 8 standard spring washers. Each waist-shaped hole 10 can increase the strength of connection for two bracket connecting bolts 11, and prevent the fixed bracket from moving up and down after fastening.

As shown in FIG. 7 , the bottom plate 8 of the support bracket is provided with a plurality of bracket fixing holes 15 , and the size and position of the bracket fixing holes 15 are determined according to the base 3 .

work process:

When it is necessary to adjust the height of the centrifugal pump torque test bracket, loosen the bracket connecting bolt 11 and gently move the torque meter fixing bracket 1 in the vertical direction to complete the stepless adjustment of the height along the waist hole 10.

The described embodiment is a preferred implementation of the present invention, but the present invention is not limited to the above-mentioned implementation, without departing from the essence of the present invention, any obvious improvement, replacement or modification that those skilled in the art can make Modifications all belong to the protection scope of the present invention.

Claims (6)

1. A centrifugal pump torque test bracket that can steplessly adjust height, is characterized in that, comprises the torque meter fixed bracket (1), torque meter support bracket (2) and base (3) connected in sequence; The torque meter fixed bracket (1) includes two identical support bracket side plates (4) and a top plate (5); the two support bracket side plates (4) are welded on both sides of the top plate (5); the support At least two rows of support connection holes (6) symmetrical to the center line are vertically provided on the support side plate (4); a plurality of torque meter fixing holes (14) are provided on the top plate (5); The torque meter support bracket (2) is two groups, which are respectively located on the outside of the support bracket side plate (4); the torque meter support bracket (2) includes a support bracket side plate (7), a support bracket bottom plate (8) And a rib (9), the two ends of the rib (9) are respectively connected to the support bracket side plate (7) and the support bracket bottom plate (8); the support bracket side plate (7) is provided with multiple columns A plurality of waist-shaped holes (10) corresponding to the bracket connection holes (6); at least two groups of bracket connection bolts (11) and matching nuts are arranged in the waist-shaped holes (10); the support bracket bottom plate (8 ) is provided with a plurality of bracket fixing holes (15). 2. A centrifugal pump torque test bracket capable of stepless height adjustment according to claim 1, characterized in that the ribs (9) are located between the side plates (7) of the support bracket and the bottom plate (8) of the support bracket central location. 3. A centrifugal pump torque test bracket capable of steplessly adjusting height according to claim 1, characterized in that, the bracket connecting holes (6) are in two rows, and two are arranged in each row; the waist-shaped There are two holes (10), and the radius of the waist-shaped hole (10) is the same as the radius of the bracket connection hole (6); each of the waist-shaped holes (10) is provided with two sets of bracket connection bolts ( 11) and matching nuts. 4. A centrifugal pump torque test bracket capable of stepless height adjustment according to claim 3, characterized in that the radius of the bracket connecting hole (6) is 4mm. 5. A centrifugal pump torque test bracket capable of stepless height adjustment according to claim 1, characterized in that, said support bracket side plate (4), top plate (5), support bracket side plate (7), The material of the support bracket bottom plate (8) and the rib plate (9) is Q235 steel plate. 6. A centrifugal pump torque test bracket capable of stepless height adjustment according to claim 1, characterized in that, said support bracket side plate (4), top plate (5), support bracket side plate (7), The support bracket bottom plates (8) are all rectangular steel plates, and the ribs (9) are triangular steel plates.