CN201155531Y

CN201155531Y - Sliding piece clutch and its assembly

Info

Publication number: CN201155531Y
Application number: CNU2007203100204U
Authority: CN
Inventors: 何建军; 何春光
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-12-05
Filing date: 2007-12-05
Publication date: 2008-11-26
Anticipated expiration: 2017-12-05

Abstract

The utility model relates to a slider clutch used for an one-way mechanical delivery system, wherein, an assembly, also called a double-shaft assembly, is arranged in the deceleration box of a loader. The clutch adopts a slider-type structure and uses the speed difference of the inner track and the outer track; the clearing device and the helical teeth control the movement of the slipper, and transmit the drive torque through the meshing and detaching of the teeth to detach the inner track from the outer track. The slider clutch overcomes the disadvantage of the prior roller-type or the wedge-type overrunning clutch which transmits the torque through friction, and improves the reliability of the torque transmission and the reliability, thus prolonging the service life of the clutch and improving the work efficiency.

Description

A kind of clutch slider and assembly thereof

Technical field

The utility model relates to a kind of clutch slider, is used for unidirectional delivery mechanical system power, and its assembly is applied in the speed reducer of loader, or claims two axle assemblies.This clutch adopts sliding block type structure, utilize the speed discrepancy of inner ring and outer ring, rely on gear meshing or throw off the transferring power moment of torsion, avoid ratchet, roller or Wedge type over running clutch to rely on friction to come the shortcoming of transmitting torque, improve transmitting torque and functional reliability, thereby prolong the working life of clutch and improve its working efficiency.

Background technique

The employed free wheel device of mechanical actuating unit, as two axle assemblies in the loading machine gearbox, need and throw off under the operating conditions in frequent engagement, transmit Operating torque discontinuously, mesh impact is bigger, because abominable operating conditions causes lubricant pollution easily, this is very disadvantageous for the roller type or the Wedge type over running clutch that rely on overall viewing range, and this also is the basic reason that causes existing overdrive clutch assembly functional reliability difference.

The slide block type clutch relies on the gear engagement transmitting torque, does not have friction means, can not influence its working life because of wearing and tearing; Owing to there is not reverse release moment, this free wheel device has higher working efficiency.Adopt the clutch assembly of this structure, be applied in the loading machine gearbox, to solve the industry difficult problem of existing clutch assembly poor reliability.

China utility model patent ZL01246922.X, Chinese utility model patent ZL01224883.5, Chinese utility model patent ZL02259717.4 and Chinese utility model patent ZL00261332.8 disclose the overdrive clutch assembly that is used for engineering machinery separately respectively, though it is slightly different on the structure, but all be the principle that adopts the surface of contact extrusion friction of roller or voussoir and gear to come transmitting torque, even improve the friction means machining accuracy, can not solve the problem of the operational safety difference of overdrive clutch assembly.

Summary of the invention

The purpose of this utility model be to overcome existing overdrive clutch assembly working life short, reliability is low, processing technology is complicated and defect of high cost, a kind of clutch that uses slide block structure is provided, improve the working life and the reliability of clutch assembly, and cut down finished cost, and then improve the power transmission performance of engineering machinery.The utility model is specially adapted to engineering machinery field, as the speed reducer of loader.

The clutch configuration that the utility model adopted comprises: inner ring, outer ring, slide block and resetting means.The inner ring of described clutch and outer ring coaxial rotation, the inner ring outside is provided with helical tooth, and the inboard, outer ring is provided with internal tooth.Described slide block is provided with external tooth and internal spiral tooth, and is sleeved on the inner ring outside by helical tooth, under the effect of resetting means and helical tooth, and the clutch of control inner ring and outer ring.Described resetting means adopts spring or magnetic substance, between slide block and inner ring end back-up ring, when inner ring and outer ring rotating speed not simultaneously, helical tooth forces slide block and outer ring internal tooth to break away from, at this moment the resetting means pressurized; When inner ring was identical with the outer ring rotating speed, resetting means oppositely promoted slide block and the engagement of outer ring internal tooth.When resetting means adopted magnetic substance, preferred version was to form the power that the same sex is repelled each other between slide block and end back-up ring.

Adopt the clutch assembly of described slide block structure, comprising: line shaft, outer ring gear, bearing, interior wheel, slide block and resetting means.Described line shaft comprises driving gear and input shaft, both can one processing, by bearings in gearbox; Described outer ring gear, and is combined with line shaft or throws off by interior wheel and slide block in line shaft outside coaxial rotation by bearings, in its inboard, outer ring internal tooth is set; Described slide block and interior wheel are between the inner ring and outer ring of outer ring gear, the slide block outside has external tooth, inboard that helical tooth is arranged, interior wheel is fixed on a side of line shaft gear, there is helical tooth in its outside, the internal tooth of slide block external tooth and outer ring gear can be meshing with each other and break away from, the helical tooth of slide block and interior wheel is meshing with each other, and makes slide block slide with respect to interior wheel; Resetting means adopts spring or magnetic substance, between slide block and interior wheel outer end back-up ring, with the helical tooth acting in conjunction, is controlling the motion of slide block.

The characteristics of this clutch assembly are: be with slide block in the interior outside of taking turns, when outer ring gear and line shaft rotating speed not simultaneously, helical tooth forces the internal tooth of slide block and outer ring gear to break away from, at this moment the resetting means pressurized; When outer ring gear was identical with the line shaft rotating speed, resetting means as spring, forced the internal tooth engagement of slide block and outer ring gear.

Description of drawings

Fig. 1 is the clutch slider structure schematic cross section of described model utility.

Fig. 2 is the clutch slider assembly structure schematic cross section of described model utility.

Embodiment

As shown in Figure 1, clutch configuration described in the utility model comprises: inner ring 2, outer ring 1, slide block 3 and resetting means 8.The inner ring 2 of described clutch and outer ring 1 coaxial rotation, inner ring 2 outsides are provided with helical tooth 6, and 1 inboard, outer ring is provided with internal tooth 9.Described slide block 3 is provided with external tooth 5 and internal spiral tooth 4, and is sleeved on inner ring 2 outsides by helical tooth 6, under the effect of resetting means 8 and helical tooth 6, and the clutch of control inner ring 2 and outer ring 1.Resetting means 8 is between slide block 3 and inner ring 2 end back-up rings 7, and when inner ring 2 was identical with outer ring 1 rotating speed, resetting means 8 promoted internal tooth 9 engagements of slide block 3 and outer ring 1; When inner ring 2 and outer ring 1 rotating speed not simultaneously, helical tooth 6 forces the slide block 3 and the internal tooth 9 of outer ring 1 to break away from.

As shown in Figure 2, the clutch assembly of employing slide block structure described in the utility model comprises: line shaft 21, outer ring gear 11, interior wheel 12, slide block 13 and resetting means 18.

Described line shaft 21 is supported in the gearbox by bearing 10; Described outer ring gear 11 is supported on line shaft 21 outside coaxial rotation by bearing 20, and combines with line shaft 21 or throw off by interior wheel 12 and slide block 13, in its inboard, outer ring internal tooth 19 is set; Described slide block 13 and interior wheel 12 are between the inner ring and outer ring of outer ring gear 11, and slide block 13 outsides have external tooth 15, inboard that helical tooth 14 is arranged; Wheel 12 is fixed on the side of line shaft 21 to driving gear 11 by bolt 22 in described, and there is helical tooth 16 in its outside; The external tooth 15 of described slide block 13 can be meshing with each other and break away from the internal tooth 19 of outer ring gear 11, and the internal spiral tooth 14 of slide block 13 is meshing with each other with the external spiral tooth 16 of interior wheel 12, makes slide block 13 slide with respect to interior wheel 12; Resetting means 18 with helical tooth 16 actings in conjunction, is being controlled the motion of slide block 13 between the end back-up ring 17 of slide block 13 and interior wheel 12.

Wheel 12 outsides in slide block 13 is sleeved on, when outer ring gear 11 and line shaft 21 rotating speeds not simultaneously, helical tooth 16 forces the slide block 13 and the internal tooth 19 of outer ring gear 11 to break away from, this moment resetting means 18 pressurizeds; When outer ring gear 11 was identical with line shaft 21 rotating speeds, resetting means 18 forced the slide block 13 and the internal tooth 19 of outer ring gear 11 to mesh.

Claims

1, a kind of clutch slider, comprise outer ring, inner ring, slide block, back-up ring and resetting means, slide block is arranged between outer ring and the inner ring, it is characterized in that: the internal spiral tooth of described slide block and the external spiral tooth on the inner ring match, be arranged between slide block and the back-up ring resetting means and helical tooth and control slide block jointly and on inner ring, endwisely slip, the slide block external tooth can or be broken away from the internal tooth engagement of outer ring.

2, clutch slider according to claim 1 is characterized in that: described resetting means is fixed on the inner ring outside, for being arranged on elastomer or the homopolarity magnet between described back-up ring and the slide block.

3, clutch slider according to claim 2 is characterized in that: the inboard, outer ring is provided with internal tooth, can mesh with the external tooth in the slide block outside; The inner ring outside is provided with the external spiral tooth, with the internal spiral tooth engagement of slide block.

4, a kind of clutch slider assembly, comprise line shaft, outer ring gear, interior wheel, slide block, back-up ring and resetting means, slide block set is contained in the interior outside of being fixed on the line shaft of taking turns, but line shaft and outer ring gear coaxial rotation, it is characterized in that: the internal spiral tooth of described slide block and the external spiral tooth on the interior wheel match, be arranged between slide block and the back-up ring resetting means and helical tooth and control slide block jointly and on interior wheel, endwisely slip, the slide block external tooth can or be broken away from the internal tooth engagement of outer ring gear.

5, clutch slider assembly according to claim 4 is characterized in that: the wheel outside in resetting means is fixed on, and for being arranged on elastomer or the homopolarity magnet between described back-up ring and the slide block.

6, clutch slider assembly according to claim 5, it is characterized in that: the inboard of outer ring gear is provided with internal tooth, can mesh with the external tooth in the slide block outside, and the interior outside of taking turns is provided with the external spiral tooth, with the internal spiral tooth engagement of slide block.