CN204416998U - A kind of chain link electric block load limit protective device of improvement - Google Patents
A kind of chain link electric block load limit protective device of improvement Download PDFInfo
- Publication number
- CN204416998U CN204416998U CN201520016081.4U CN201520016081U CN204416998U CN 204416998 U CN204416998 U CN 204416998U CN 201520016081 U CN201520016081 U CN 201520016081U CN 204416998 U CN204416998 U CN 204416998U
- Authority
- CN
- China
- Prior art keywords
- chute
- tooth axle
- outside
- power wheel
- adapter sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of chain link electric block load limit protective device of improvement, comprise tooth axle, one end of tooth axle is engaged with transmission gear, the surface uniform of the other end of described tooth axle is provided with chute, the outside of tooth axle is socketed with adapter sleeve, the inside face of adapter sleeve is provided with several connecting pins, connecting pin is slidably arranged in chute, the end face that transmission gear is provided with chute side is provided with position-limited trough, adapter sleeve is connected with power wheel by transmission shaft, the arranged outside of position-limited trough has spring body, joint pin is provided with in power wheel, the sidewall of joint pin is evenly provided with several skewed slots, skewed slot is positioned at the downward-sloping setting in one end outside power wheel, each skewed slot is provided with a strut bar, the outside of power wheel is socketed with sprocket wheel, spring body is connected with the sidewall of joint pin through transmission shaft.The utility model can improve the deficiencies in the prior art, improves the stability that fender guard uses, and realizes regulating torque threshold according to the flexible in size of load.
Description
Technical field
The utility model relates to a kind of chain link electric block, especially a kind of chain link electric block load limit protective device of improvement.
Background technology
Electric Chain Blocks is a kind of small-sized weight-lifting equipment, volume is little, from heavy and light, easy to operate, dependable performance, it can be matched in single-beam crane, overhang crane, flexible KBK system, cantilever crane or fixing i-beam track etc., be widely used in factory, mine, harbour, warehouse, goods yard, particularly produce, on fitting line, purposes and be extensive.In order to ensure safety during hoisting heavy, chain link electric block is all provided with the load limit protective device of restriction maximum load.Chinese invention patent application CN 103241670 A discloses a kind of Electric Chain Blocks with load limit protective device, can effectively limit the maximum load of chain link electric block.But this fender guard realizes being connected and being separated by the phase mutual friction of clutch discs and friction lining, the structure of this phase mutual friction in use the rate of wear soon, poor stability, and cannot flexible torque threshold as required.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of chain link electric block load limit protective device of improvement, can solve the deficiencies in the prior art, improves the stability that fender guard uses, and realizes regulating torque threshold according to the flexible in size of load.
For solving the problems of the technologies described above, technical solution adopted in the utility model is as follows.
A kind of chain link electric block load limit protective device of improvement, comprise tooth axle, one end of tooth axle is engaged with transmission gear, the surface uniform of the other end of described tooth axle is provided with chute, chute is obliquely installed, the angle of chute and tooth axle axis is 15 ° ~ 25 °, the outside of tooth axle is socketed with adapter sleeve, the inside face of adapter sleeve is provided with several connecting pins, connecting pin is slidably arranged in chute, the end face that transmission gear is provided with chute side is provided with position-limited trough, adapter sleeve is connected with power wheel by transmission shaft, the arranged outside of position-limited trough has spring body, joint pin is provided with in power wheel, the sidewall of joint pin is evenly provided with several skewed slots, skewed slot is positioned at the downward-sloping setting in one end outside power wheel, each skewed slot is provided with a strut bar, strut bar is perpendicular to the axis of tooth axle, the top of strut bar is positioned at the outside of power wheel, the outside of power wheel is socketed with sprocket wheel, the inner side of sprocket wheel is provided with the groove matched with strut bar, spring body is connected with the sidewall of joint pin through transmission shaft.
As preferably, the both sides of described chute are provided with ball bumps portion, connecting pin are provided with the rubber section with ball bumps portion interference fit.
As preferably, the top of described strut bar is symmetrically arranged with two metal spring sheets, metal spring sheet and groove interference fit.
The beneficial effect adopting technique scheme to bring is: the utility model changes in prior art and controls power transmission member connection and the structure be separated by friction force, adopt the bearing fit of adapter sleeve and chute, the break-make being realized power transmission by the rigid contact of connecting pin and chute is controlled, can avoid the undue wear for friction face in friction control process, stability improves greatly.Because chute is obliquely installed, so when connecting pin contacts with chute, the moment of torsion that connecting pin applies can form a horizontal impulse toward the outer side on chute, and along with the increasing of moment of torsion, this horizontal propelling thrust also can become large thereupon.Along with the increase adapter sleeve of horizontal propelling thrust can move to the outside of tooth axle gradually, and the final chute that departs from enters in position-limited trough.After connecting pin departs from chute, because adapter sleeve loses the radial attachment force with tooth axle, the moment of torsion of tooth axle outwards cannot be exported by adapter sleeve, defines and protects the restriction of maximum output torque.During by mounting the load of Different Weight outside the rigid contact of connecting pin and chute, power wheel is different for the pressure of strut bar, this pressure is applied on skewed slot by strut bar, joint pin is made to be subject to a propelling thrust towards adapter sleeve direction, the horizontal impulse toward the outer side that this propelling thrust and adapter sleeve are subject to is cancelled out each other, can realize, along with external loading increases the object that torque peak that adapter sleeve is released chute also increases thereupon, which achieves the effect regulating torque peak threshold value according to the flexible in size of external loading weight.The interference fit in rubber section and ball bumps portion can improve stability when connecting pin and chute slide mutually.Metal spring sheet and groove interference fit, can improve the stability that sprocket wheel and strut bar are connected and fixed.
Accompanying drawing explanation
Fig. 1 is the constructional drawing of the utility model detailed description of the invention.
Fig. 2 is the constructional drawing that in the utility model detailed description of the invention, connecting pin coordinates with chute.
Fig. 3 is the constructional drawing that the utility model detailed description of the invention middle sprocket coordinates with strut bar.
Fig. 4 is interconnective constructional drawing between strut bar in the utility model detailed description of the invention.
In figure: 1, tooth axle; 2, transmission gear; 3, chute; 4, adapter sleeve; 5, connecting pin; 6, position-limited trough; 7, transmission shaft; 8, power wheel; 9, spring body; 10, joint pin; 11, skewed slot; 12, strut bar; 13, sprocket wheel; 14, groove; 15, ball bumps portion; 16, rubber section; 17, metal spring sheet; 18, connecting rod; 19, limiting stopper.
Detailed description of the invention
The standardized parts used in the utility model all can be commercially, shaped piece all can carry out customized according to specification sheets with the record of accompanying drawing, the concrete connection mode of each part all adopts the conventional means such as bolt, rivet, welding, stickup ripe in prior art, is not described in detail in this.
With reference to Fig. 1-4, the utility model detailed description of the invention comprises tooth axle 1, one end of tooth axle 1 is engaged with transmission gear 2, the surface uniform of the other end of described tooth axle 1 is provided with chute 3, chute 3 is obliquely installed, chute 3 is 19 ° with the angle of tooth axle 1 axis, the outside of tooth axle 1 is socketed with adapter sleeve 4, the inside face of adapter sleeve 4 is provided with several connecting pins 5, connecting pin 5 is slidably arranged in chute 3, the end face that transmission gear 2 is provided with chute 3 side is provided with position-limited trough 6, adapter sleeve 4 is connected with power wheel 8 by transmission shaft 7, the arranged outside of position-limited trough 6 has spring body 9, joint pin 10 is provided with in power wheel 8, the sidewall of joint pin 10 is evenly provided with several skewed slots 11, skewed slot 11 is positioned at the downward-sloping setting in one end outside power wheel 8, each skewed slot 11 is provided with a strut bar 12, strut bar 12 is perpendicular to the axis of tooth axle 1, the top of strut bar 12 is positioned at the outside of power wheel 8, the outside of power wheel 8 is socketed with sprocket wheel 13, the inner side of sprocket wheel 13 is provided with the groove 14 matched with strut bar 12, spring body 9 is connected with the sidewall of joint pin 10 through transmission shaft 7.Because chute 3 is obliquely installed, so when connecting pin 5 contacts with chute 3, the moment of torsion that connecting pin 5 applies can form a horizontal impulse toward the outer side on chute 3, and along with the increasing of moment of torsion, this horizontal propelling thrust also can become large thereupon.Along with the increase adapter sleeve 4 of horizontal propelling thrust can move to the outside of tooth axle 1 gradually, and the final chute 3 that departs from enters in position-limited trough 6.After connecting pin 5 departs from chute 3, because adapter sleeve 4 loses the radial attachment force with tooth axle 1, the moment of torsion of tooth axle 1 outwards cannot be exported by adapter sleeve 4, defines and protects the restriction of maximum output torque.During by mounting the load of Different Weight outside the rigid contact of connecting pin 5 and chute 3, power wheel 8 is different for the pressure of strut bar 12, this pressure is applied on skewed slot 11 by strut bar 12, joint pin 10 is made to be subject to a propelling thrust towards adapter sleeve 4 direction, the horizontal impulse toward the outer side that this propelling thrust and adapter sleeve 4 are subject to is cancelled out each other, can realize along with external loading increases the object also increased by the torque peak that adapter sleeve 4 releases chute 3 thereupon, which achieves the effect regulating torque peak threshold value according to the flexible in size of external loading weight.The both sides of chute 3 are provided with ball bumps portion 15, connecting pin 5 are provided with the rubber section 16 with ball bumps portion 15 interference fit, can improve stability when connecting pin 5 slides mutually with chute 3.The top of strut bar 12 is symmetrically arranged with two metal spring sheets 17, and metal spring sheet 17 and groove 14 interference fit, can improve the stability that sprocket wheel 13 is connected and fixed with strut bar 12.
In addition, be also hinged with connecting rod 18 between adjacent strut bar 12, hinged place is provided with limiting stopper 19.By the connection of connecting rod 18, all strut bars 12 can be made to form the entirety of an interlock, when sprocket wheel compresses strut bar, the degree of uniformity that joint pin is stressed can be improved.Limiting stopper can limit the maximum relative displacement amount between strut bar 12.
Wherein, the utility model improves according on the basis of the patent documentation quoted in background technology, and tooth axle has carried out disclosing fully by the annexation of transmission gear and external driver device in the cited patent, is not described in detail in this.
More than show and describe groundwork of the present utility model and principal character and advantage of the present utility model.The technical personnel of the industry should be understood; the utility model is not restricted to the described embodiments; what describe in above-described embodiment and specification sheets just illustrates principle of the present utility model; under the prerequisite not departing from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. the chain link electric block load limit protective device improved, comprise tooth axle (1), one end of tooth axle (1) is engaged with transmission gear (2), it is characterized in that: the surface uniform of the other end of described tooth axle (1) is provided with chute (3), chute (3) is obliquely installed, chute (3) is 15 ° ~ 25 ° with the angle of tooth axle (1) axis, the outside of tooth axle (1) is socketed with adapter sleeve (4), the inside face of adapter sleeve (4) is provided with several connecting pins (5), connecting pin (5) is slidably arranged in chute (3), the end face that transmission gear (2) is provided with chute (3) side is provided with position-limited trough (6), adapter sleeve (4) is connected with power wheel (8) by transmission shaft (7), the arranged outside of position-limited trough (6) has spring body (9), joint pin (10) is provided with in power wheel (8), the sidewall of joint pin (10) is evenly provided with several skewed slots (11), skewed slot (11) is positioned at the downward-sloping setting in one end in power wheel (8) outside, each skewed slot (11) is provided with a strut bar (12), strut bar (12) is perpendicular to the axis of tooth axle (1), the top of strut bar (12) is positioned at the outside of power wheel (8), the outside of power wheel (8) is socketed with sprocket wheel (13), the inner side of sprocket wheel (13) is provided with the groove (14) matched with strut bar (12), spring body (9) is connected through the sidewall of transmission shaft (7) with joint pin (10).
2. the chain link electric block load limit protective device of improvement according to claim 1; it is characterized in that: the both sides of described chute (3) are provided with ball bumps portion (15), connecting pin (5) is provided with the rubber section (16) with ball bumps portion (15) interference fit.
3. the chain link electric block load limit protective device of improvement according to claim 1, is characterized in that: the top of described strut bar (12) is symmetrically arranged with two metal spring sheets (17), metal spring sheet (17) and groove (14) interference fit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520016081.4U CN204416998U (en) | 2015-01-12 | 2015-01-12 | A kind of chain link electric block load limit protective device of improvement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520016081.4U CN204416998U (en) | 2015-01-12 | 2015-01-12 | A kind of chain link electric block load limit protective device of improvement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204416998U true CN204416998U (en) | 2015-06-24 |
Family
ID=53467387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520016081.4U Expired - Fee Related CN204416998U (en) | 2015-01-12 | 2015-01-12 | A kind of chain link electric block load limit protective device of improvement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204416998U (en) |
-
2015
- 2015-01-12 CN CN201520016081.4U patent/CN204416998U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20170112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |