CN201159635Y - Alignment device of mechanical rotation device coupling - Google Patents

Abstract

The utility model discloses a shaft coupling corrector for mechanical transmission devices. The shaft coupling corrector comprises a measuring assembly and a reading assembly. The measuring assembly consists of a sighting rod and a gear; a rack meshed with the gear is arranged on the sighting rod. The reading assembly comprises a graduated disc and a pointer is arranged on the graduated disc. The shaft coupling corrector further comprises a selsyn which is composed of a transmitter and a receiver; one end of the transmitter is coaxially connected with the gear, and the other end is connected to the receiver and outputs angle displacement signals; one end of the receiver receives angle displacement signals and the other end is coaxially connected with the rotating shaft of the pointer. The shaft coupling corrector electrically transmits the measured angle displacement and conducts automatic step regulation through the selsyn and turns the angle displacement to the reading of the pointer at the graduated disc, so the measured value can be read at the outside; the shaft coupling corrector is convenient to conduct detection below a back gearing. The shaft coupling corrector not only reduces labor intensity but also ensures measuring precision, thus ensuring the normal use of the shaft coupling.

Description

The alignment device of mechanical rotation equipment shaft coupling

Technical field

The utility model relates to the centering technology of mechanical rotation equipment shaft coupling, more particularly, relates to a kind of alignment device of mechanical rotation equipment shaft coupling, and this alignment device can help the clutch below is detected and reading.

Background technology

Because the running of mechanical rotation equipment must drive by prime mover, reach a higher quality of balance between mechanical rotation equipment and its driving arrangement in order to make, to reduce slewing because of the not high vibration that produces of quality of balance, satisfy the precision and the requirement of slewing running, therefore, after mechanical rotation equipment installs, must carry out the centering of shaft coupling.The shaft coupling centering at first needs the measured deviation data, then the deviation situation is analyzed, and adjusts the position of prime mover or driven arbor at last, thereby makes not only concentric, but also the parallel purpose of primary shaft and driven shaft.Therefore, guarantee the correctness of deviation data, just become the key problem in technology of shaft coupling centering.See also Fig. 1 a, Fig. 1 b and Fig. 2 a, shown in Fig. 2 b, at present, shaft coupling 1 centering of industrial and mining enterprises almost all is to adopt traditional dial gauge 10 measuring techniques, anchor clamps by special use (to the wheel card) or magnetic force gauge stand are inhaled the side at shaft coupling 1 one clutches, beat on another clutch with indicator, to measure the radial deflection between a pair of clutch 11 and the error amount (concentricity and the depth of parallelism) of axially parallel, generally when measuring first, just the pointer of dial gauge 10 is adjusted to virgin state (zero-bit), by clockwise or counter clockwise direction a pair of clutch 11 is rotated simultaneously then, when clutch 11 every half-twists are just noted data above the dial gauge 10, then by symmetric points (4 points up and down), be the poor of the measured corresponding numerical value that comes out after clutch 11 Rotate 180s °, calculate the actual deviation value between main drive shaft and the driven shaft, look the deviation situation then and adjust, until the deviation data that records in specialized range.

Directly over measuring and during the deviation data of these three points of the left and right sides, data read is more convenient, but under measuring during the deviation data of this point, since dial gauge 10 just in time be in clutch 11 under, and just in time be in inversion state, this moment is when reading dial gauge 10 data, operating personnel not only need to lie face down, and head need be turned over up and see that under the occasion that especially device location is on the low side, space for maintenance is less, reading is more difficult.In addition, because shaft coupling 1 centering of a mechanical rotation equipment can not disposable finishing, usually need just to finish through measurement, calculating and the adjustment of repeated multiple times, so whole centering process wastes time and energy, and the mistake that reads of measurement data often takes place easily, cause the centering precision relatively poor, influence the normal use of equipment.

The utility model content

Above-mentioned comparatively difficult at what exist in the prior art to clutch below survey measurements, the shortcoming that wastes time and energy and make mistakes easily, the purpose of this utility model provides a kind of alignment device of mechanical rotation equipment shaft coupling, this alignment device can be convenient to the clutch below is detected and reading, improves measuring accuracy.

For achieving the above object, the utility model adopts following technical scheme:

The alignment device of this mechanical rotation equipment shaft coupling comprises measurement component and reading parts, and measurement component comprises measuring staff and gear, has tooth bar on the measuring staff, and and gearing mesh; The reading parts comprise index dial, are provided with pointer in the index dial, and this alignment device also comprises selsyn, and described selsyn comprises transmitter and receiver, and transmitter one end is coaxial with gear and be connected, and the other end is connected to receiver, and the angle displacement signal; Receiver one termination is received angular displacement signal, and the other end is coaxial with the rotating shaft of pointer and be connected.

Described transmitter and receiver include field copper, and the field copper of transmitter and the field copper of receiver are connected to same single phase poaer supply.

Described transmitter and receiver also include synchronous winding, and the leading-out terminal of the synchronous winding of transmitter and the synchronous winding of receiver connects successively by phase sequence.

The synchronous winding of described transmitter and receiver is three.

In technique scheme, the alignment device of mechanical rotation equipment shaft coupling of the present utility model comprises measurement component and reading parts, and measurement component comprises measuring staff and gear, has tooth bar on the measuring staff, and and gearing mesh; The reading parts comprise index dial, are provided with pointer in the index dial, and this alignment device also comprises selsyn, and selsyn comprises transmitter and receiver, and transmitter one end is coaxial with gear and be connected, and the other end is connected to receiver, and the angle displacement signal; Receiver one termination is received angular displacement signal, and the other end is coaxial with the rotating shaft of pointer and be connected.This alignment device carries out electric transmission and synchronizing automatically by selsyn with the angular displacement of measuring, become the reading of pointer on index dial, thereby read realization measurement data outside, be convenient to the clutch below is detected, not only alleviated labour intensity, and the raising measuring accuracy, guaranteed the normal use of shaft coupling.

Description of drawings

Fig. 1 a, Fig. 1 b are respectively the structural representations that the dial gauge of prior art detects the concentricity of shaft coupling upper and lower;

Fig. 2 a, Fig. 2 b are respectively the structural representations that the dial gauge of prior art detects the depth of parallelism of shaft coupling upper and lower;

Fig. 3 is the structural representation of the alignment device of mechanical rotation equipment shaft coupling of the present utility model;

Fig. 4 is the principle of work block scheme of alignment device of the present utility model;

Fig. 5 is the circuit theory synoptic diagram of alignment device of the present utility model.

Embodiment

Further specify the technical solution of the utility model below in conjunction with drawings and Examples.

See also shown in Figure 3ly, the alignment device 20 of mechanical rotation equipment shaft coupling of the present utility model comprises measurement component and reading parts, and measurement component comprises measuring staff 21 and gear, has tooth bar on the measuring staff 21, is used for the detection of straight lines displacement; Gear is not of uniform size three, and the number of teeth of gear Z2 is 20, and is meshed with measuring staff 21, gear Z3 is a gear wheel, and the number of teeth is 100, and gear Z3 is coaxial with gear Z2, the number of teeth of gear Z1 is 10, and is meshed with gear Z3, is used for angular displacement is changed and is enlarged in straight-line displacement.The reading parts comprise index dial 22, are provided with pointer 23 in the index dial 22, are used to show reading.This alignment device 20 also comprises selsyn 24, and described selsyn 24 comprises transmitter S and receiver R, and transmitter S one end is coaxial with gear Z1, and be connected with the rotating shaft of gear Z1, the other end is connected to receiver R by signal wire, and the angle displacement signal, and connects with power supply U; Receiver R one termination is received angular displacement signal, and the other end is coaxial with the rotating shaft of pointer 23, and is connected with the rotating shaft of pointer 23, so index dial 22 need not directly with pointer 23 and measurement component carries out mechanical connection, can be arranged on easy-to-read place.

See also shown in Figure 5, this selsyn 24 can adopt torque synchro 24, on market, can conveniently buy and obtain, the transmitter S of this selsyn 24 comprises field copper L1, receiver R comprises field copper L1 ', and the field copper L1 ' of the field copper L1 of transmitter S and receiver R is connected to same single phase poaer supply U.Transmitter S also comprises three synchronous winding D1, D2, D3, receiver R yet comprises three synchronous winding D1 ', D2 ', D3 ', and the synchronous winding D1 of synchronous winding D1, D2, D3 and the receiver R of transmitter S, the leading-out terminal of D2, D3 connect successively by phase sequence.The principle of work of this selsyn 24 is: when field copper L1, the L1 ' of transmitter S and receiver R are respectively θ 1, θ 2 with respect to the deflection angle of each own synchronous winding D1, D2, D3, D1 ', D2 ', D3 ', both relative deviation angles are θ=θ 1-θ 2, and this relative deviation angle θ is called error angle.When having error angle between receiver R and the transmitter S, in synchronously winding D1, D2, D3, D1 ', D2 ', D3 ' loop, the difference electromotive force will occur and produce circulation, synchronizing torque appears at last, and this synchronizing torque can make error angle θ go to zero.Because the rotor of transmitter S and gear Z1 rotating shaft are joined and can not arbitrarily be rotated, therefore, synchronizing torque can make the rotor of receiver R turn over the θ angle, thereby makes the corner unanimity.Therefore, this selsyn 24 can make mechanically disjunct two rotating shafts mutually do synchronous deflection, thereby realizes the angular displacement transmission.

Please again in conjunction with shown in Figure 4, during use, when measuring especially for the shaft coupling below, when measuring staff 21 is raised 1mm by workpiece, tooth bar just has been moved upward 2 teeth (tooth pitch of establishing tooth bar is 0.5 millimeter), because gear Z2 is 20 teeth, so tooth bar promotes gear Z2 and has rotated 1/10 circle (2 tooth ÷, 20 teeth=1/10 circle), therefore 10 teeth (100 teeth * 1/10 circle=10 teeth) have just been turned over the coaxial gear Z3 of Z2, and gear Z1 is 10 teeth, and with gear Z3 engagement, after gear Z3 drove, Z1 and the transmitter S that is fixed on the selsyn 24 in its rotating shaft all rotated a week (360 °) just.According to the principle of work of above-mentioned selsyn 24 as can be known, the receiver R of selsyn 24 and the pointer 23 that is fixed on it also rotate a week (360 °) just.Because index dial 22 is 100 five equilibriums, so when measuring staff 21 moves 1mm, pointer 23 100 calibration of passing by, that is to say that pointer 23 turns over a calibration, be equivalent to measuring staff 21 and move 0.01mm, pass through the transmission and the synchronizing automatically of the electric signal of selsyn 24 like this, not only be convenient to operating personnel and carry out reading, and guaranteed the precision of measuring, reduced error, the operation that has guaranteed shaft coupling is normal, and effect is remarkable.

Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.

Claims (4)

1. the alignment device of a mechanical rotation equipment shaft coupling, this alignment device comprises measurement component and reading parts, measurement component comprises measuring staff and gear, has tooth bar on the measuring staff, and and gearing mesh; The reading parts comprise index dial, are provided with pointer in the index dial, it is characterized in that:

This alignment device also comprises selsyn, and described selsyn comprises transmitter and receiver, and transmitter one end is coaxial with gear and be connected, and the other end is connected to receiver, and the angle displacement signal; Receiver one termination is received angular displacement signal, and the other end is coaxial with the rotating shaft of pointer and be connected.

2. the alignment device of mechanical rotation equipment shaft coupling as claimed in claim 1 is characterized in that:

Described transmitter and receiver include field copper, and the field copper of transmitter and the field copper of receiver are connected to same single phase poaer supply.

3. the alignment device of mechanical rotation equipment shaft coupling as claimed in claim 2 is characterized in that:

Described transmitter and receiver also include synchronous winding, and the leading-out terminal of the synchronous winding of transmitter and the synchronous winding of receiver connects successively by phase sequence.

4. the alignment device of mechanical rotation equipment shaft coupling as claimed in claim 3 is characterized in that:

The synchronous winding of described transmitter and receiver is three.

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