CN204171951U - For the assembling locking tool of bicycle freewheel - Google Patents

Abstract

The utility model discloses a kind of assembling locking tool for bicycle freewheel, comprise handle (4), first linking arm (3), second linking arm (5), bolt (1), nut (2) and taper projection (6), handle (4) and the first linking arm (3) are integrated, second linking arm (5) is articulated with one end of the close handle (4) of the first linking arm (3), nut (2) and bolt (1) are fixed on the end relative with handle (4) of the first linking arm (3) and the second linking arm (5), the lower end of bolt (1) is fixedly connected with taper projection (6).Beneficial effect is when adjusting bearing clearance, can be used alone the first linking arm and carries out locking and outwarding winding, two linking arms also can be utilized simultaneously to be fixed locked, can use on small size part, time saving and energy saving, raise the efficiency, and the accuracy of operation can be improved.

Description

For the assembling locking tool of bicycle freewheel

Technical field

The utility model relates to a kind of assembling locking tool, specifically a kind of assembling locking tool for bicycle freewheel.

Background technology

Bicycle freewheel is the indispensable parts of bicycle, and flywheel is rotated with the right-hand member fixing on rear axle with internal thread, keeps same plane, and be connected with sprocket wheel by chain with sprocket wheel, forms the drive system of bicycle.Single freewheel and the large class of multistage flying wheel two can be divided into structure.Single freewheel is primarily of part compositions such as overcoat, flat gear and fuse, very heavy, very heavy spring, packing ring, silk gear and steel balls, operation principle is: when stepping foot-operated forward, chain-driving flywheel rotates forward, at this moment flywheel internal tooth contains mutually with very heavy, the rotatory force of flywheel passes to fuse by very heavy, fuse drives rear axle and rear wheel, and bicycle has just advanced.

The manufacture method of bicycle freewheel is: first clamp position in the inner ring body that disk is connected to radial side correctly introduce the ball of a ball bearing with one, then outer ring body is introduced together with brake pawl, then the ball of second ball bearing is introduced, the size difference of the bearing clearance of the ball bearing produced by manufacturing tolerance can become balanced when part engages, and then other clamping disk is pressed towards the side towards its inner ring body, the projection outstanding to inner ring body side surface direction of this clamping disk is pressed on this side, this inner ring body side is made to be out of shape under pressure, to go directly the bearing clearance of regulation of ball bearing, then this clamping disk and inner ring body are riveted.A wherein crucial step is the bearing clearance making ball bearing reach regulation, need in the process repeatedly to debug, normally used instrument is spanner, but because the accessory size on flywheel is very little, so it is more difficult to use common wrench operated to get up, cause production efficiency lower, and the accuracy in the gap that can adjust is poor.

Summary of the invention

For above-mentioned prior art Problems existing, the utility model provides a kind of assembling locking tool for bicycle freewheel, can use on small size part, time saving and energy saving, raises the efficiency, and can improve the accuracy of operation.

To achieve these goals, the utility model is achieved through the following technical solutions: a kind of assembling locking tool for bicycle freewheel, comprise handle, the first linking arm, the second linking arm, bolt, nut and taper projection, handle and the first linking arm are integrated, second linking arm is articulated with one end of the close handle of the first linking arm, nuts and bolt is fixed on the end relative with handle of the first linking arm and the second linking arm, and the lower end of bolt is fixedly connected with taper projection.

Preferably, the first described linking arm is equal with the length of the second linking arm, length is 8 centimetres ~ 10 centimetres, considers, if the length of the first linking arm and the second linking arm is less than 8 centimetres from amechanical angle, then comparatively requiring great effort in locking, if length is greater than 10 centimetres, although laborsaving, need by handle steering operation person during owing to operating, if length easily makes handle meet operator too greatly, use inconvenience.

Preferably, the length of described handle is 15 centimetres ~ 17 centimetres, comparatively comfortable when using within the scope of this, meets the custom of operation.

Preferably, the second described linking arm is 0 ° ~ 85 ° relative to the activity point of view of the first linking arm, because when using this assembling locking tool, sometimes use first linking arm is needed, sometimes need to use the first linking arm and the second linking arm simultaneously, when only needing use the first linking arm, second linking arm will be kept at an angle with the first linking arm, but this angle can not more than 85 °, if exceed this angular range, the second linking arm is just easy to damage operator or crushed by the hand of operator.

Preferably, described nut is outer-hexagonal nut, and fastening force is larger.

The beneficial effects of the utility model are: when adjusting bearing clearance, can be used alone the first linking arm to carry out locking and outwarding winding, also two linking arms can be utilized to be fixed locked simultaneously, can use on small size part, time saving and energy saving, raise the efficiency, and the accuracy of operation can be improved.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the enlarged diagram of bolt.

In figure: 1, bolt, 2, nut, the 3, first linking arm, 4, handle, the 5, second linking arm, 6, taper projection.

Detailed description of the invention

Below in conjunction with accompanying drawing, the utility model is described further.

As depicted in figs. 1 and 2, a kind of assembling locking tool for bicycle freewheel, comprise handle 4, first linking arm 3, second linking arm 5, bolt 1, nut 2 and taper projection 6, handle 4 and the first linking arm 3 are integrated, second linking arm 5 is articulated with one end of the close handle 4 of the first linking arm 3, nut 2 and bolt 1 are fixed on the end relative with handle 4 of the first linking arm 3 and the second linking arm 5, the lower end of bolt 1 is fixedly connected with taper projection 6, taper projection 6 coincide with needing the surface groove size of fastening part, conveniently carry out locking and outwarding winding.

Preferably, first linking arm 3 is equal with the length of the second linking arm 5, length is 8 centimetres ~ 10 centimetres, considers, if the length of the first linking arm 3 and the second linking arm 5 is less than 8 centimetres from amechanical angle, then comparatively requiring great effort in locking, if length is greater than 10 centimetres, although laborsaving, need by handle 4 steering operation person during owing to operating, if length easily makes handle 4 meet operator too greatly, use inconvenience.

Preferably, the length of handle 4 is 15 centimetres ~ 17 centimetres, comparatively comfortable when using within the scope of this, meets the custom of operation.

Preferably, second linking arm 5 is 0 ° ~ 85 ° relative to the activity point of view of the first linking arm 3, because when using this assembling locking tool, sometimes use first linking arm 3 is needed, sometimes need to use the first linking arm 3 and the second linking arm 5 simultaneously, when only needing use the first linking arm 3, second linking arm 5 will be kept at an angle with the first linking arm 3, but this angle can not more than 85 °, if exceed this angular range, the second linking arm 5 is just easy to damage operator or crushed by the hand of operator.

Preferably, nut 2 is outer-hexagonal nut, and fastening force is larger.

Be used alone the first linking arm 3, the silk of flywheel gear and fuse can be carried out locking and outwarding winding, by the quantity of this process adjusting packing ring, when quantity figure adjust suitable after, use the first linking arm 3 and the second linking arm 5 to be fixed locked to silk gear and fuse simultaneously, can use on small size part, time saving and energy saving, raise the efficiency, and the accuracy of operation can be improved.

Claims (5)

1. the assembling locking tool for bicycle freewheel, it is characterized in that, comprise handle (4), first linking arm (3), second linking arm (5), bolt (1), nut (2) and taper projection (6), handle (4) and the first linking arm (3) are integrated, second linking arm (5) is articulated with one end of the close handle (4) of the first linking arm (3), nut (2) and bolt (1) are fixed on the end relative with handle (4) of the first linking arm (3) and the second linking arm (5), the lower end of bolt (1) is fixedly connected with taper projection (6).

2. a kind of assembling locking tool for bicycle freewheel according to claim 1, is characterized in that, described the first linking arm (3) is equal with the length of the second linking arm (5), and it is 8 centimetres ~ 10 centimetres that length is.

3. a kind of assembling locking tool for bicycle freewheel according to claim 2, is characterized in that, the length of described handle (4) is 15 centimetres ~ 17 centimetres.

4. a kind of assembling locking tool for bicycle freewheel according to claim 1, is characterized in that, described the second linking arm (5) is 0 ° ~ 85 ° relative to the activity point of view of the first linking arm (3).

5. a kind of assembling locking tool for bicycle freewheel according to claim 1, is characterized in that, described nut (2) is outer-hexagonal nut.