CN201953845U

CN201953845U - Coupler

Info

Publication number: CN201953845U
Application number: CN2010206468987U
Authority: CN
Inventors: 秦代胤
Original assignee: Chongqing Zongshen General Power Machine Co Ltd
Current assignee: Chongqing Zongshen General Power Machine Co Ltd
Priority date: 2010-12-08
Filing date: 2010-12-08
Publication date: 2011-08-31
Anticipated expiration: 2020-12-08

Abstract

The utility model discloses a coupler, which comprises a connecting shaft body, a pressing plate, a washer and a snap spring, wherein a step through hole is arranged in the connecting shaft body, the pressing plate is matched with the connecting shaft body, and the washer and the snap spring are arranged in an upper end hole of the connecting shaft body. A key groove is axially arranged in the middle of the matching portion of the connecting shaft body and a crankshaft, the pressing plate and a key groove screw are combined into a whole to be matched with the crankshaft, so that axial holding force of the crankshaft is strengthened, a gap between the crankshaft and the coupler is effectively narrowed, stability of the crankshaft working in the coupler is guaranteed, probability of breakage of a lock bolt of the crankshaft and damage of a motor crankshaft and crankshaft threads is reduced, and the coupler is convenient in use and maintenance.

Description

A kind of coupling

Technical field

The utility model relates to a kind of coupling.

Background technique

Strengthen in the experiment leading to machine frame chamber horizontal axis, usually by bent axle screw-threaded coupling mode, promptly in coupling, crankshaft end compresses bent axle with the bent axle lock bolt, prevents that bent axle from rocking in coupling.Because accurate to dimension influence, the matching gap of existing coupling and bent axle is excessive, and single crank shaft bolt locking mode can not be adjusted the matching gap between coupling and bent axle effectively, make the stressed wearing and tearing of connecting key that are prone to bent axle and coupling in the experimentation, the aperture that coupling cooperates with bent axle increases, phenomenons such as keyway damage cause the fracture of bent axle lock bolt, finally cause the damage of engine crankshaft and bent axle screw thread.And in a single day go wrong, the tester also needs often screw, Li Si and frequent coupling, the troublesome maintenance changed are holed, got to coupling.

Summary of the invention

At the problems referred to above, the purpose of this utility model is to provide a kind of can effectively reduce matching gap, coupling easy to maintenance.

The utility model adopts such technological scheme to realize, a kind of coupling, establish in comprising ladder hole connect a main body, with connect pressing plate that a main body cooperates, be placed on and connect interior packing ring and the jump ring of sector hole on the main body; It is characterized in that: connect a main body and the bent axle mating part radially has keyway described; Described pressing plate be used for connect a main body on keyway partly cooperate, the two screw connects.

Above-mentioned connecing in the main body established ladder hole, and its upper end hole is the bent axle locking nut hole that cooperates with the bent axle lock bolt, and the following sector hole that connects a main body cooperates with bent axle, is provided with keyway in this time sector hole; Connect that key is connected between a main body and the bent axle; In order to prevent bent axle play in coupling, in connecing the bottom, bent axle locking nut hole of a main body epimere, the place that contacts with crankshaft end is provided with packing ring; In order to prevent that the work middle washer from deviating from, jump ring is set above packing ring.

The described degree of depth that connects keyway on the main body, with this keyway bottom with connect in the main body down sector hole and intersect but do not pass down sector hole and be as the criterion.

The end face of described pressing plate cooperates with the bottom of keyway on connecing a main body.

Have the circular arc through hole on the end face of described pressing plate; When pressing plate with connect keyway part screw on the main body and link together after, circular arc through hole on the pressing plate constitutes a complete manhole with the hole that connects in the keyway on the main body, this manhole is used for cooperating with bent axle, and the size of manhole is consistent with the external diameter of bent axle.

At the excesssive gap problem between existing coupling and the bent axle, the utility model has adopted fabricated structure, be the described pressing plate that has a circular arc through hole with in establish ladder hole the keyway that connects a main body partly make up, and connect in aggregatesly with screw, this integral body cooperates with crankshaft key; This fabricated structure has on the one hand increased the power of holding tightly to bent axle in radial direction, by adjusting the pressing plate size, adopts screw in compression on the other hand, has realized the adjustment to gap between coupling and the bent axle.

Compare with existing coupling, the utility model is by radially offering keyway at the intermediate section that connects a main body and bent axle mating part, adopt pressing plate and this keyway to constitute the whole mode that cooperates with bent axle, both increased the power of radially holding tightly of bent axle, reduced the gap between bent axle and the coupling again effectively, guaranteed the stability that bent axle is worked in coupling, reduced the probability of the fracture of bent axle lock bolt, engine crankshaft and the damage of bent axle screw thread, made the coupling working service convenient.

Description of drawings

Fig. 1 is a plan view of the present utility model;

Fig. 2 is the side view of Fig. 1;

Fig. 3 is the plan view of Fig. 1;

Fig. 4 is the A-A view that Fig. 1 connects a main body;

Fig. 5 is the plan view of the utility model briquetting;

Fig. 6 is the side view of Fig. 5;

Fig. 7 is the plan view of Fig. 5.

Among the figure, 1-connects a main body, 2-pressing plate, 3-packing ring, 4-jump ring.

Embodiment

Below in conjunction with accompanying drawing and be embodiment the utility model is described in further detail, but the utility model is not limited only to this.

Embodiment, a kind of coupling, establish in comprising ladder hole connect a main body 1, with connect pressing plate 2 that a main body 1 cooperates, be placed on and connect packing ring 3 and the jump ring 4 in the sector hole on the main body 1; The described last sector hole that connects a main body 1 cooperates with the bent axle lock bolt, and the following sector hole that connects a main body 1 cooperates with bent axle, is provided with keyway in this time sector hole; Connect that key is connected between a main body 1 and the bent axle; Be provided with packing ring 3 in the place that connects sector hole bottom on the main body 1, contact, be used to prevent bent axle play in coupling with crankshaft end; Above packing ring 3, be provided with jump ring 4, deviate to prevent the work middle washer.

Describedly connect a main body 1 hypomere and the bent axle mating part radially has keyway; On the center line of the bottom of this keyway following stomidium in connecing a main body 1.

Described pressing plate 2 is a semi-round ring shape; The diameter of pressing plate 2 is with to connect a main body 1 hypomere diameter consistent; The end face of pressing plate 2 with connect a main body on the bottom of 1 keyway cooperate; The pore size of the arc-shaped through-hole on pressing plate 2 end faces with connect a main body 1 on keyway part hole big or small consistent, on diameter, all equal half of bent axle external diameter; When pressing plate 2 with connect keyway part screw on the main body 1 and link together after, the arc-shaped through-hole on the pressing plate 2 with connect that the hole in the keyway constitutes a complete manhole on the main body 1, the size of this manhole is consistent with the external diameter of bent axle.

During use, adopt diagonal angles to intersect mounting types with 4 screws pressing plate 2 be locked at the keyway place that connects on the main body 1, pressing plate 2 with connect a main body 1 and constitute an integral body and cooperate with bent axle.On the one hand pressing plate 2, connect a main body 1 and screw fit and eliminated matching gap between coupling and bent axle, on the other hand by pressing plate 2, connect a main body 1 and screw is radially applying the power of holding tightly, and the axial pressing force that applies of bent axle lock bolt, guaranteed the stability that bent axle is worked in coupling, avoid occurring phenomenons such as the stressed wearing and tearing of connecting key, aperture increase and keyway damage, reduced the fracture of bent axle lock bolt, the generation of engine crankshaft and the damage of bent axle screw thread.

Claims

1. coupling, establish in comprising ladder hole connect a main body (1), with connect pressing plate (2) that a main body (1) cooperates, be placed on the packing ring (3) and the jump ring (4) that connect in a main body (1) upper end hole; It is characterized in that: radially have keyway at the described intermediate section that connects a main body (1) and bent axle mating part; Described pressing plate (2) be used for connect a main body (1) on keyway partly cooperate, the two screw connects.

2. a kind of coupling as claimed in claim 1 is characterized in that: describedly connect the degree of depth that a main body (1) goes up keyway, with this keyway bottom with connect in the main body (1) down stomidium and intersect but do not pass down stomidium and be as the criterion.

3. a kind of coupling as claimed in claim 1 is characterized in that: the described intermediate section that connects a main body (1) and bent axle mating part radially has keyway; On the center line of the bottom of this keyway following stomidium in connecing a main body (1).

4. a kind of coupling as claimed in claim 1 is characterized in that: the end face of described pressing plate (2) cooperates with the bottom of keyway on connecing a main body (1); On the end face of described pressing plate (2) the circular arc through hole is arranged; When pressing plate (2) with connect keyway part screw on the main body (1) and link together after, circular arc through hole on the pressing plate (2) constitutes a complete manhole with the hole that connects in the last keyway of a main body (1), this manhole is used for cooperating with bent axle, and the size of manhole is consistent with the external diameter of bent axle.

5. a kind of coupling as claimed in claim 1 is characterized in that: described pressing plate (2) is a semi-round ring shape; The size of the arc-shaped through-hole on pressing plate (2) end face goes up the big or small consistent of keyway part hole with connecing a main body (1), all equals half of bent axle external diameter on diameter; When pressing plate (2) with connect keyway part screw on the main body (1) and link together after, the arc-shaped through-hole on the pressing plate (2) with connect the hole that a main body (1) goes up in the keyway and constitute a manhole, the size of this manhole is consistent with the external diameter of bent axle.