CN205978333U

CN205978333U - Inner ratchet gear

Info

Publication number: CN205978333U
Application number: CN201620985597.4U
Authority: CN
Inventors: 彭来明; 刘满
Original assignee: Anhui Hong Yuan Electromechanical Technology Co Ltd
Current assignee: Anhui Hong Yuan Electromechanical Technology Co Ltd
Priority date: 2016-08-29
Filing date: 2016-08-29
Publication date: 2017-02-22
Anticipated expiration: 2026-08-29

Abstract

The utility model discloses an inner ratchet gear, technical field is designed for mechanical device in affiliated field, including wheel body, the teeth of a cogwheel, ratchet hole, ratchet teeth, shaft hole, the wheel body be a cylinder axle, and its axial dimensions is relative, and radial dimension is less, and it has the teeth of a cogwheel to lie in its excircle right side processing, meshes mutually with other gears, and its central right side processing has the less shaft hole in aperture, and with the gear shaft cooperation on the drilling and milling machine, the left side in shaft hole processes has the ratchet hole, and the inner side machining in the ratchet hole has the ratchet teeth, match with the pawl of installing on drilling and milling machine, the utility model discloses an inner ratchet gear, the wheel body low price, bearing capacity is strong, and the security is good, and the even processing of internal surface in ratchet hole has 48 ratchet teeths, can satisfy the inside transmission part's of drilling and milling machine intermittent driving rotational speed demand, and the profile angle of ratchet teeth is 74, and during with pawl interact, the transmission is reliable, and the transmission performance is good.

Description

A kind of handle ratchet wheel gear

Technical field

This utility model is related to machinery design field, more particularly to a kind of handle ratchet wheel gear.

Background technology

Mechanically all of lathe all can't do without drive system, and handle ratchet wheel gear is mounted in above lathe and is used for transmission One class part, the required intermittently-driving on handle ratchet wheel gear mesh drilling and milling machine has played very important effect, and traditional is interior Ratchet gear structure is not reasonable, and its edge ratio is relatively sharp, is easily caused the damage of other parts or the injured of operator, Poor stability, often ratchet and gear are separate two parts, need to make respectively, be respectively mounted, waste of resource, efficiency Low, high cost, and drilling and milling machine internal structure can be caused complicated, therefore design a kind of wheel body low price, bearing capacity is strong, peace The good handle ratchet wheel gear of good perfection, reliable transmission, and transmission performance seems very necessary.

Utility model content

The purpose of this utility model is exactly to overcome traditional handle ratchet wheel and gear to need be fabricated separately, be respectively mounted, Waste of resource, efficiency is low, the defect of high cost, devises a kind of handle ratchet wheel gear, wheel body low price, bearing capacity is strong, peace Good perfection, reliable transmission, and transmission performance are good.

The required technical problem solving of this utility model can be achieved through the following technical solutions：

A kind of handle ratchet wheel gear, including wheel body, described wheel body is a cylinder axis, and relatively radially size is relatively for its axial dimension Little, also include the gear teeth, ratchet hole, hook tooth, axis hole, be machined with the described gear teeth positioned at the cylindrical right side of described wheel body, with other teeth Wheel is meshed, and its central right is machined with the less described axis hole in aperture, coordinates with the gear shaft on drilling and milling machine, described axis hole Left side is machined with described ratchet hole, and the inner surface in described ratchet hole is machined with described hook tooth, and is arranged on drilling and milling machine Ratchet matches.

Described wheel body is the low-carbon alloy steel through modifier treatment, and its hardness number is up to HB220～250.

All edges of described wheel body are all using 1 × 45 °.

The inner surface in described ratchet hole is uniformly machined with 48 hook tooths.

The profile angle of described hook tooth is 74 °.

Due to employing above technical scheme, this utility model has the advantage that：

Handle ratchet wheel gear designed by being combined using wheel body, the gear teeth, ratchet hole, hook tooth, axis hole, wheel body is through toning The low-carbon alloy steel that matter is processed, up to HB220～250, low price, bearing capacity is strong, all corners of wheel body for its hardness number Place, all using 1 × 45 °, is difficult to scratch other parts when wheel body and other parts assembly, safety is good, the inner surface in ratchet hole Uniformly it is machined with 48 hook tooths, the intermittently-driving speed demand of drilling and milling machine internal drive part, the tooth of hook tooth can be met Shape angle is 74 °, when interacting with ratchet, reliable transmission, and transmission performance is good.

Brief description

Fig. 1 is this utility model structure forward sight complete section schematic diagram；

Fig. 2 is this utility model structure A to partial schematic diagram；

The each assembly of in figure and reference are respectively：1 wheel body；2nd, the gear teeth；3rd, ratchet hole；4th, hook tooth；5th, axis hole.

Specific embodiment

In order that technological means, creation characteristic, reached purpose and effect that this utility model is realized are easy to understand, under Face combines and is specifically illustrating, and this utility model is expanded on further.

A kind of handle ratchet wheel gear, including wheel body 1, the gear teeth 2, ratchet hole 3, hook tooth 4, axis hole 5, wheel body 1 is a cylinder axis, Relatively radially size is less for its axial dimension, is machined with the gear teeth 2 positioned at its cylindrical right side, is meshed with other gears, its center Right side is machined with the less axis hole in aperture 5, coordinates with the gear shaft on drilling and milling machine, the left side of axis hole 5 is machined with ratchet hole 3, The inner surface in ratchet hole 3 is machined with hook tooth 4, matches with the ratchet (in figure is not drawn into) being arranged on drilling and milling machine.

Wheel body 1 is the low-carbon alloy steel through modifier treatment, and its hardness number, up to HB220～250, low price, carries Ability is strong.

All edges of wheel body 1, all using 1 × 45 °, are difficult to scratch other zero when wheel body 1 and other parts assembly Part, safety is good.

The inner surface in ratchet hole 3 is uniformly machined with 48 hook tooths 4, can meet the interval of drilling and milling machine internal drive part Transmission speed demand.

The profile angle of hook tooth 4 is 74 °, when interacting with ratchet, reliable transmission, and transmission performance is good.

Handle ratchet wheel gear disclosed in the utility model, wheel body 1 is the low-carbon alloy steel through modifier treatment, its hardness number Up to HB220～250, low price, bearing capacity is strong, all edges of wheel body 1 all using 1 × 45 °, when wheel body 1 and its It is difficult during its parts assembly to scratch other parts, safety is good, the inner surface in ratchet hole 3 is uniformly machined with 48 hook tooths 4, can To meet the intermittently-driving speed demand of drilling and milling machine internal drive part, the profile angle of hook tooth 4 is 74 °, with ratchet phase interaction Used time, reliable transmission, and transmission performance are good.

Of the present utility model ultimate principle, principal character and of the present utility model advantage have been shown and described above.One's own profession The technical staff of industry it should be appreciated that this utility model is not restricted to the described embodiments, described in above-described embodiment and description Principle of the present utility model is simply described, on the premise of without departing from this utility model spirit and scope, this utility model also can There are various changes and modifications, these changes and improvements both fall within the range of claimed this utility model.This utility model will Protection domain is asked to be defined by appending claims and its equivalent.

Claims

1. a kind of handle ratchet wheel gear, including wheel body, described wheel body is a cylinder axis, and relatively radially size is less for its axial dimension, It is characterized in that：Also include the gear teeth, ratchet hole, hook tooth, axis hole, be machined with the described gear teeth positioned at the cylindrical right side of described wheel body, It is meshed with other gears, its central right is machined with the less described axis hole in aperture, with the gear shaft cooperation on drilling and milling machine, institute The left side stating axis hole is machined with described ratchet hole, and the inner surface in described ratchet hole is machined with described hook tooth, and is arranged on brill Ratchet on milling machine matches.

2. according to claim 1 a kind of handle ratchet wheel gear it is characterised in that：Described wheel body is the low-carbon (LC) through modifier treatment Steel alloy, its hardness number is up to HB220～250.

3. according to claim 1 a kind of handle ratchet wheel gear it is characterised in that：All edges of described wheel body are all using 1 ×45°.

4. according to claim 1 a kind of handle ratchet wheel gear it is characterised in that：The inner surface in described ratchet hole is uniformly machined with 48 hook tooths.

5. according to claim 1 a kind of handle ratchet wheel gear it is characterised in that：The profile angle of described hook tooth is 74 °.