CN212007766U

CN212007766U - Turbine blade rotation testing device

Info

Publication number: CN212007766U
Application number: CN202020721573.4U
Authority: CN
Inventors: 马勇; 马贤
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-06
Filing date: 2020-05-06
Publication date: 2020-11-24
Anticipated expiration: 2030-05-06

Abstract

The utility model relates to a turbine blade tests technical field, and discloses a turbine blade rotates testing arrangement, comprising a base plate, two spinal branch vaulting poles of upper end bilateral symmetry fixedly connected with of bottom plate, the upper end fixedly connected with bearing frame of bracing piece, it has cup jointed the pivot, two to rotate through ball bearing in the bearing frame the pivot downside an organic whole of one end in opposite directions is connected with the semicircle filler ring, two the butt joint has same root test rod in the semicircle filler ring, the pole wall of test rod passes through bolt fixedly connected with blade, the upper end fixedly connected with pressure sleeve of semicircle filler ring is at the semicircle clamping ring of test rod upside. The utility model discloses can realize the blade short-term test, improve blade rotation detection efficiency.

Description

Turbine blade rotation testing device

Technical Field

The utility model relates to a turbine blade tests technical field, especially relates to a turbine blade rotates testing arrangement.

Background

The steam turbine is also called as a steam turbine engine, and is a rotary steam power device.A high-temperature high-pressure steam passes through a fixed nozzle to become an accelerated airflow and then is sprayed onto blades, so that a rotor provided with blade rows rotates, and simultaneously, the rotor does work outwards. Steam turbines are the main equipment of modern thermal power plants, and are also used in the metallurgical industry, chemical industry and ship power plants.

Whether the blades of the steam turbine can rotate in an effective and energy-saving manner to the greatest extent is an important part influencing the normal use of the steam turbine, therefore, the steam turbine needs to carry out related tests on the rotating conditions of the blades of the steam turbine before leaving a factory, for a large steam turbine, a special large-scale blade rotation test detection device is provided, but for small steam turbines, when the blades of the steam turbine are driven to carry out the tests, the blades of the steam turbine need to be manually carried to the rotating device to carry out related tests, but the blades of the steam turbine are limited by the materials, so that the blades of the steam turbine have large weight, and the blades of the steam turbine are difficult to carry to the detection device when being detected, so that the actual detection is very inconvenient, and the test efficiency is.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art to some miniature steam turbines, need the manual work to carry the steam turbine blade to rotating device and carry out relevant detection again when driving the steam turbine blade and testing, but the steam turbine blade is because its material restriction for its weight is very big itself, hardly carry detection device with it when detecting on, make the inconvenience very of actual detection, the problem of efficiency of software testing has been influenced, and the steam turbine blade who proposes rotates testing arrangement.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a turbine blade rotation testing device comprises a bottom plate, wherein two supporting rods are fixedly and symmetrically connected to the left and right of the upper end of the bottom plate, a bearing seat is fixedly connected to the upper end of each supporting rod, a rotating shaft is sleeved in the bearing seat through a ball bearing in a rotating mode, semicircular supporting rings are integrally connected to the lower sides of the opposite ends of the two rotating shafts, the two semicircular supporting rings are internally supported by the same detecting rod, the rod wall of each detecting rod is fixedly connected with a blade through a bolt, a semicircular pressing ring sleeved on the upper side of the detecting rod is fixedly connected to the upper end of each semicircular supporting ring in a pressing mode, connecting plates are fixedly connected to the outer walls of the two ends of each semicircular supporting ring and the outer wall of the corresponding semicircular pressing ring, the two connecting plates are vertically symmetrical, a driven sprocket is fixedly sleeved on the outer wall of the rotating shaft on the right side, a driving motor, the same transmission chain belt is sleeved between the driving chain wheel and the driven chain wheel;

the upper end of the bottom plate is symmetrically and fixedly connected with two electric slide rails, the upper end of a slide block in each electric slide rail is fixedly connected with an electric push rod, and the upper end of the electric push rod is fixedly connected with an arc-shaped supporting plate which is connected to the lower end of the detection rod in a supporting mode.

Preferably, the clamping mechanism comprises a U-shaped pressing plate which is sleeved outside the two connecting plates in a pressing mode, a plurality of jacks are formed in the surface of the U-shaped pressing plate, clamping insertion rods are movably inserted into the jacks, clamping jacks which are correspondingly inserted into the clamping insertion rods are formed in the surface of the connecting plate, a plurality of clamping springs are fixedly connected to the upper ends of the clamping insertion rods, the same reset pull plate is fixedly connected to the upper ends of the clamping insertion rods, and a plurality of clamping springs are fixedly connected between the lower end of the reset pull plate and the upper end of the U-shaped pressing plate and sleeved outside the clamping insertion rods.

Preferably, the inner side wall of the U-shaped pressing plate is fixedly connected with two wedge-shaped blocks in an up-and-down symmetrical mode, and the outer wall of the connecting plate is provided with a dovetail groove matched and clamped with the wedge-shaped blocks.

Preferably, the inner walls of the semicircular supporting ring and the semicircular pressing ring are fixedly connected with positioning columns, and positioning grooves which are correspondingly inserted with the positioning columns are formed in the rod wall of the detection rod.

Preferably, the driving motor, the electric slide rail and the electric push rod are electrically connected with a peripheral power supply through a control switch.

Compared with the prior art, the utility model provides a steam turbine blade rotates testing arrangement possesses following beneficial effect:

the turbine blade rotation testing device is characterized in that a blade is fixed on a detection rod through a bolt when the blade is detected through an arc supporting plate, the detection rod is supported in the arc supporting plate, an electric push rod and an electric slide rail are started, the electric push rod pushes the arc supporting plate upwards to lift the detection rod so as to lift the blade, the electric slide rail drives the detection rod to move to a semicircular supporting ring, the electric push rod is driven to move downwards so as to enable the detection rod to be clamped in the semicircular supporting ring, the blade can be quickly loaded on the detecting device, a semicircular pressing ring is covered, the semicircular supporting ring and the semicircular pressing ring can be stably connected with the detection rod through the matching of a positioning column and a positioning groove, a U-shaped pressing plate is fixedly clamped outside two connecting plates through the matching of a wedge block and a dovetail groove, and when a clamping insertion rod is aligned with a clamping insertion hole, a clamping spring is pulled downwards to reset a, the reset pull plate can realize the firm connection between the semicircular supporting ring and the semicircular compression ring in pushing the clamping insertion rod into the clamping insertion hole, can quickly fix the detection rod, starts the driving motor, drives the driving sprocket to rotate, utilizes the effect of the transmission chain belt to drive the driven sprocket to rotate and then drive the rotating shaft to rotate, enables the blade to rotate at a high speed, can realize the quick detection of the blade, and improves the detection efficiency of the rotation of the blade.

And the part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses can realize the blade short-term test, improve blade rotation detection efficiency.

Drawings

Fig. 1 is a schematic structural view of a turbine blade rotation testing device provided by the present invention;

fig. 2 is a schematic structural view of the connection between the semicircular supporting ring and the semicircular pressing ring of the turbine blade rotation testing device provided by the utility model;

fig. 3 is a schematic structural diagram of a part a of the turbine blade rotation testing apparatus provided by the present invention.

In the figure: the device comprises a base plate 1, a supporting rod 2, a bearing seat 3, a rotating shaft 4, a semicircular supporting ring 5, a detection rod 6, a blade 7, a semicircular compression ring 8, a connecting plate 9, a driven sprocket 10, a driving motor 11, a driving sprocket 12, a transmission chain belt 13, an electric slide rail 14, an electric push rod 15, an arc-shaped supporting plate 16, a U-shaped pressing plate 18, a clamping insertion rod 19, a clamping insertion hole 19, a reset pulling plate 20, a clamping spring 21, a wedge-shaped block 22, a dovetail groove 23, a positioning column 24 and a positioning groove 25.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a turbine blade rotation testing device comprises a bottom plate 1, two support rods 2 are fixedly connected to the upper end of the bottom plate 1 in a bilateral symmetry manner, a bearing seat 3 is fixedly connected to the upper end of each support rod 2, a rotating shaft 4 is sleeved in the bearing seat 3 through a ball bearing in a rotating manner, semicircular support rings 5 are integrally connected to the lower sides of the opposite ends of the two rotating shafts 4, a same detection rod 6 is supported in the two semicircular support rings 5, a blade 7 is fixedly connected to the rod wall of the detection rod 6 through a bolt, a semicircular press ring 8 which is sleeved on the upper side of the detection rod 6 through a press ring is fixedly connected to the upper end of each semicircular support ring 5, connecting plates 9 are fixedly connected to the outer walls of the two ends of the semicircular support rings 5 and the semicircular press ring 8, the two connecting plates 9 which are vertically symmetrical are fixedly connected through a clamping mechanism, an output shaft of the driving motor 11 is fixedly connected with a driving chain wheel 12, and a same transmission chain belt 13 is sleeved between the driving chain wheel 12 and the driven chain wheel 10;

two electric slide rails 14 are symmetrically and fixedly connected to the upper end of the bottom plate 1, an electric push rod 15 is fixedly connected to the upper end of a slide block in the electric slide rail 14, and an arc-shaped supporting plate 16 connected to the lower end of the detection rod 6 in a supporting mode is fixedly connected to the upper end of the electric push rod 15.

The clamping mechanism comprises a U-shaped pressing plate 17 which is sleeved outside two connecting plates 9 in a pressing mode, a plurality of jacks and clamping insertion rods 18 are movably inserted into the jacks on the surface of the U-shaped pressing plate 17, clamping insertion holes 19 which are correspondingly inserted into the clamping insertion rods 18 are formed in the surface of the connecting plates 9, the upper ends of the clamping insertion rods 18 are fixedly connected with the same reset pull plate 20, and a plurality of clamping springs 21 which are sleeved outside the clamping insertion rods 18 are fixedly connected between the lower end of the reset pull plate 20 and the upper end of the U-shaped pressing plate 17.

Two wedge blocks 22 are fixedly connected to the inner side wall of the U-shaped pressing plate 17 in an up-down symmetrical mode, and a dovetail groove 23 matched and clamped with the wedge blocks 22 is formed in the outer wall of the connecting plate 9.

The inner walls of the semicircular supporting ring 5 and the semicircular compression ring 8 are fixedly connected with positioning columns 24, and positioning grooves 25 which are correspondingly inserted with the positioning columns 24 are formed in the rod wall of the detection rod 6.

The driving motor 11, the electric slide rail 14 and the electric push rod 15 are all electrically connected with an external power supply through a control switch.

In the utility model, when in use, when the blade 7 is detected, the blade 7 is fixed on the detection rod 6 through the bolt through the arc supporting plate 16, the detection rod 6 is supported in the arc supporting plate 16, the electric push rod 15 and the electric slide rail 14 are started, the electric push rod 15 pushes up the arc supporting plate 16 and then lifts the detection rod 6 to lift the blade, the electric slide rail 14 drives the detection rod 6 to move to the semicircular supporting ring 5, the electric push rod 15 is driven to move downwards to enable the detection rod 6 to be sleeved in the semicircular supporting ring 5, the blade 7 can be quickly loaded on the detection device, the semicircular clamping ring 8 is covered, the semicircular supporting ring 5 and the semicircular clamping ring wedge 8 can be stably connected with the detection rod 6 through the matching of the positioning column 24 and the positioning groove 25, and the clamping sleeve fastened by the U-shaped clamping plate 17 is sleeved outside the two connecting plates 9 through the matching of the positioning column 22 and the dovetail groove 23, after chucking inserted bar 18 aligns chucking jack 19, chucking spring 21 pulls down reset arm-tie 20, reset arm-tie 20 impels chucking inserted bar 18 in chucking jack 19 and can realize the firm connection between semicircle backing ring 5 and the semicircle clamping ring 8, can fix fast test rod 6, start driving motor 11, driving motor 11 drives driving sprocket 12 and rotates, the effect that utilizes transmission chain belt 13 drives driven sprocket 10 and rotates and then drive pivot 4 and rotate, make blade 7 can high-speed rotation, can realize blade 7 short-term test, blade 7 rotation detection efficiency has been improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a steam turbine blade rotation testing arrangement, includes bottom plate (1), its characterized in that, two spinal branch vaulting poles (2) of upper end bilateral symmetry fixedly connected with of bottom plate (1), the upper end fixedly connected with bearing frame (3) of bracing piece (2), pivot (4) have been cup jointed through ball bearing rotation in bearing frame (3), two the downside of pivot (4) one end in opposite directions is connected with semicircle filler ring (5) integratively, two the same root detection pole (6) has been cup jointed in semicircle filler ring (5), the pole wall of detection pole (6) has blade (7) through bolt fixedly connected with, the upper end fixed connection pressure sleeve of semicircle filler ring (5) is at the semicircle clamping ring (8) of detection pole (6) upside, the both ends outer wall fixed connection of semicircle filler ring (5) and semicircle clamping ring (8) has connecting plate (9), the two connecting plates (9) which are symmetrical up and down are fixedly connected through a clamping mechanism, a driven chain wheel (10) is fixedly sleeved on the outer wall of the rotating shaft (4) positioned on the right side, the upper end of the bottom plate (1) is fixedly connected with a driving motor (11), an output shaft of the driving motor (11) is fixedly connected with a driving chain wheel (12), and the same transmission chain belt (13) is sleeved between the driving chain wheel (12) and the driven chain wheel (10);

the upper end of the bottom plate (1) is symmetrically and fixedly connected with two electric slide rails (14), the upper ends of the slide blocks in the electric slide rails (14) are fixedly connected with electric push rods (15), and the upper ends of the electric push rods (15) are fixedly connected with arc-shaped supporting plates (16) which are connected to the lower ends of the detection rods (6) in a supporting mode.

2. The turbine blade rotation testing device of claim 1, wherein the clamping mechanism comprises a U-shaped pressing plate (17) which is sleeved outside two connecting plates (9) in a pressing mode, a plurality of insertion holes are formed in the surface of the U-shaped pressing plate (17), clamping insertion rods (18) are movably inserted into the insertion holes, clamping insertion holes (19) which are correspondingly inserted into the clamping insertion rods (18) are formed in the surface of the connecting plates (9), the upper ends of the clamping insertion rods (18) are fixedly connected with a same reset pull plate (20), and a plurality of clamping springs (21) which are sleeved outside the clamping insertion rods (18) are fixedly connected between the lower end of the reset pull plate (20) and the upper end of the U-shaped pressing plate (17).

3. The turbine blade rotation testing device according to claim 2, wherein two wedge blocks (22) are fixedly connected to the inner side wall of the U-shaped pressing plate (17) in an up-and-down symmetrical mode, and a dovetail groove (23) matched and clamped with the wedge blocks (22) is formed in the outer wall of the connecting plate (9).

4. The turbine blade rotation testing device according to claim 1, wherein the inner walls of the semicircular supporting ring (5) and the semicircular pressure ring (8) are fixedly connected with positioning columns (24), and positioning grooves (25) which are correspondingly inserted with the positioning columns (24) are formed in the rod wall of the detection rod (6).

5. The turbine blade rotation testing device according to claim 1, wherein the driving motor (11), the electric sliding rail (14) and the electric push rod (15) are electrically connected with an external power supply through a control switch.