CN201455750U

CN201455750U - Synchronous transmission device for crankshaft connecting rod journal grinding

Info

Publication number: CN201455750U
Application number: CN200920087433XU
Authority: CN
Inventors: 肖俭才; 罗精华
Original assignee: Xiangfan Fuda Dongkang Crankshaft Co Ltd
Current assignee: Xiangfan Fuda Dongkang Crankshaft Co Ltd
Priority date: 2009-07-17
Filing date: 2009-07-17
Publication date: 2010-05-12
Anticipated expiration: 2019-07-17

Abstract

A synchronous transmission device for crankshaft connecting rod journal grinding is used for synchronous transmission of a crankshaft connecting rod journal grinding headstock and a tailstock. Two connecting bodies are respectively in key connection with one ends of a headstock driving shaft and a spline shaft, and the connecting surfaces are conical surfaces and are fastened through glands and screws; the two connecting bodies are connected through teeth, and the teeth of the connecting bodies are pressed through the screws; the spline end of the spline shaft and a tailstock driving shaft are locked through a spline locking ring; and a protective device is arranged on the shaft. The synchronous transmission device is of an independent mechanical structure, forms a rigid whole once being adjusted, dose not rely on other external signals, is not influenced by other actions, and has stable and reliable work; the two connecting bodies can be connected with keys through self-locking conical surface bodies, the spline drives and uses the locking ring, and the whole transmission device can completely eliminate gaps and ensures the synchronization precision of the headstock and the tailstock; and the two connecting bodies are connected through symmetrical rectangular keys and can be adjusted left and right through the screws, therefore the clamping angle of a headstock and tailstock clamp can be adjusted simply and conveniently.

Description

Crank-shaft link neck grinding synchronous transmission device

Technical field

The utility model relates to a kind of transmission device, particularly the synchronous transmission device of frame end to end of crank-shaft link neck grinding.

Background technology

During the crank-shaft link neck grinding, need to adopt the two ends of eccentric fixture clamping simultaneously bent axle, the rotation type of drive of frame has three kinds at present end to end, a kind of is to rotate by the motor-driven headstock, come carry-over moment with bent axle self, make the tailstock anchor clamps follow the headstock passively and workpiece rotates together, this mode is easy to generate distortion, influences grinding accuracy and grinding efficiency; Another kind is that frame adopts servo drive motor simultaneously end to end, the driven in synchronism rotation, and this mode frame end to end all is the active drive rotation, precision is higher, but costs an arm and a leg, and only is suitable for high-grade numerical-control crankshaft grinding machine; Also have a kind of be adopt yielding coupling end to end frame link up, make end to end by headstock motor-driven that frame rotates synchronously, this mode can satisfy the grinding requirement, but yielding coupling is limited service life, and carry-over moment is less, is not suitable for the grinding than large crankshaft.

Summary of the invention

For overcoming the deficiencies in the prior art, goal of the invention of the present utility model is to provide a kind of simple in structure, reliable and stable crank-shaft link neck grinding synchronous transmission device, to improve connecting rod neck grinding accuracy.

In order to solve the problems of the technologies described above, the two ends of the utility model bent axle are connected with the transmission device of the headstock, tailstock respectively, and two connectors are connected with an end key of headstock driving shaft, splined shaft respectively, and joint face is the conical surface, and is fastening by gland and screw; Adopt tooth to connect between two connectors, the tooth of connector passes through screw in compression; The splined end of splined shaft and tailstock driving shaft are tight by spline locking ring lock; Big sleeve and small sleeve are housed on the splined shaft, and lid is equipped with in the end of the end of headstock driving shaft and splined shaft, the other end of splined shaft and tailstock driving shaft.Splined shaft and give bent axle with the kinetic moment of the headstock by tailstock driving shaft synchronous transfer with the connected system of head, tail frame makes bent axle not produce torsion in grinding process, guarantees with the kinetic moment of the headstock synchronously, improves grinding accuracy.

The utility model compared with prior art has the following advantages:

1, transmitting accuracy height: be connected with key but two connectors all pass through self-locking conical surface body, spline drives uses retaining ring, can eliminate the gap fully in whole transmission device, guarantees the synchronization accuracy of frame end to end;

2, reliable and stable: the utility model is the separate machine structure, forms rigid unitary in case regulate the back, does not rely on other external signal, not influenced by other action, and working stability is reliable;

3, adjustment is simple and convenient: two connectors adopt symmetrical square key to connect, but by the screw left and right adjusting, thereby regulate the clamping angle of frame anchor clamps end to end, simple and convenient.

Description of drawings

Fig. 1 is the utility model structure diagram;

Fig. 2 is the profile of Fig. 1.

The specific embodiment

As shown in Figure 1 and Figure 2, connector 2 is connected with the driving shaft of the headstock 14, connected mode adopts self-locking conical surface body and key, fastening by gland 3 and screw, connector 4 is connected with an end of splined shaft 5, but connected mode adopts identical self-locking conical surface body and key, and is fastening by gland 15 and screw, make in the whole transmission device and can eliminate the gap fully, guarantee the synchronization accuracy of frame end to end; Adopt symmetrical rectangular teeth to connect between two connectors, screw with the tooth pressure of connector 2 on the increment face of connector 4, can respectively regulate 5 ° to the left and right by screw, thereby regulate the clamping angle of frame anchor clamps end to end, adopt the synchronous angle that screw can correct tailstock to finely tune, after adjusting, two connectors can be tightened to integral body; The splined end of splined shaft 5 is connected with the driving shaft of tailstock 12, eliminate the gap that spline connects by spline retaining ring 10, retaining ring 10 is the anchor ear structure, compress by the driving shaft of screw splined end and tailstock 12, so just the driving shaft of frame intactly links together end to end, realizes the transmission of driving moment, reaches the purpose of the synchronous rotation of frame end to end, make bent axle 13 in grinding process, not produce torsion, guarantee with the kinetic moment of the headstock synchronous; The

lid

1,6,9,11 at two ends and big small sleeve 7, the 8 main protective actions that rise, lid 1 is contained on the bed piece, lid 6 passes big sleeve 7 and is contained in and cover 1 end, and lid 1,6 mainly protects the headstock 14 driving shafts and splined shaft 5 one ends and

connector

2 and 4 and connected system; Big sleeve 7 and small sleeve 8 are equipped with in the middle part of splined shaft 5; Lid 11 is contained on the bed piece, and lid 9 passes small sleeve 8 and is contained in and cover 11 end, and

lid

9 and 11 mainly protects the other ends of tailstock 12 driving shafts and splined shaft 5.

Claims

1. crank-shaft link neck grinding synchronous transmission device, the two ends of bent axle (13) are connected with the transmission device of the headstock (14), tailstock (12) respectively, it is characterized in that: connector (2) is connected with the driving axle key of the headstock (14), fastening by gland (3) and screw, connector (4) is connected with splined shaft (5) one end keys, fastening by gland (15) and screw, adopt tooth to be connected between connector (2) and the connector (4), the splined end of splined shaft (5) is connected with the driving shaft of tailstock (12), locks by spline retaining ring (10).

2. crank-shaft link neck grinding synchronous transmission device according to claim 1 is characterized in that: connector (2) is the conical surface with the joint face of the headstock (14) driving shaft.

3. crank-shaft link neck grinding synchronous transmission device according to claim 1 is characterized in that: connector (4) is the conical surface with the joint face of splined shaft (5).

4. crank-shaft link neck grinding synchronous transmission device according to claim 1 is characterized in that: the tooth of connector (2) is tight by the tooth pressure of screw and connector (4).

5. crank-shaft link neck grinding synchronous transmission device according to claim 1 is characterized in that: big sleeve (7) and small sleeve (8) are housed on the splined shaft (5).

6. crank-shaft link neck grinding synchronous transmission device according to claim 1, it is characterized in that: lid (1) and lid (6) are equipped with in the end of the headstock (14) driving shaft and splined shaft (5), and lid (9) and lid (11) are equipped with in the end of the other end of splined shaft (5) and tailstock (12) driving shaft.