CN109356985B - Automatic limiting device for reciprocating motion of gear and rack to end point - Google Patents
Automatic limiting device for reciprocating motion of gear and rack to end point Download PDFInfo
- Publication number
- CN109356985B CN109356985B CN201811512066.3A CN201811512066A CN109356985B CN 109356985 B CN109356985 B CN 109356985B CN 201811512066 A CN201811512066 A CN 201811512066A CN 109356985 B CN109356985 B CN 109356985B
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- Prior art keywords
- rack
- gear
- reciprocating motion
- automatic
- driving block
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
- F16H19/043—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack for converting reciprocating movement in a continuous rotary movement or vice versa, e.g. by opposite racks engaging intermittently for a part of the stroke
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/04—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising a rack
- F16H2019/046—Facilitating the engagement or stopping of racks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H35/00—Gearings or mechanisms with other special functional features
- F16H2035/006—Gearings or mechanisms for stopping or limiting movement, e.g. stopping a movement after few turns
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The invention relates to an automatic limiting device after a gear and a rack linearly reciprocate to a terminal under the action of force, in particular to an automatic limiting device after the gear and the rack reciprocate to a terminal point; the automatic limiting device comprises a shell, a fixed seat, a main shaft, a gear, a rack, an automatic limiting driving block, a fixed slideway and a dragging object, wherein the fixed seat is arranged on one side of the shell and is connected with the fixed main shaft; the automatic limiting driving block is arranged inside the shell, the rack is arranged in the middle of the inside of the automatic limiting driving block, fixed slideways are arranged on two sides of the outside of the automatic limiting driving block and fixed on the shell, and the tail end part of the automatic limiting driving block is connected with a dragging object. The automatic limiting driving block is a main body structure of the automatic limiting driving block, and is simple and practical in structure and convenient to maintain; the automatic limiting driving block can be connected with different dragged objects at different positions, and is suitable for the connection of the dragged objects in any equipment which does linear reciprocating motion.
Description
Technical Field
The invention relates to a device for automatically limiting after a gear and a rack linearly reciprocate to a terminal under the action of force.
Background
At present, many industrial devices or mechanisms need a driving device capable of performing linear reciprocating motion to provide required power, and electric driving, manual driving, hydraulic driving and pneumatic driving are common; the hydraulic driving system is complex, the pneumatic driving system needs compressed air, the auxiliary system is high in cost, the pipeline is easy to freeze and block locally in cold weather, normal operation of equipment is affected, and the application range is limited. Electric and manual driving is usually a screw mechanism and a gear and rack driving mechanism, but electric driving equipment has the phenomenon that mechanical automatic limiting cannot be realized when an electric control device is opened or closed to a terminal point after frequent failure, so that a motor is overloaded and burnt, and great loss is caused to factory operation; not only causes the waste of manpower and material resources, but also can not be opened and closed frequently and move at high speed by adopting the electrically driven screw mechanism, and can not effectively play the normal utilization rate of the equipment.
Therefore, some solutions have been proposed, for example, the problem that the gear and rack are disengaged and the rack is rapidly and automatically engaged with the gear after the gear stops is solved in the "gear and rack reciprocating movement to end point tooth disengaging device" disclosed in the utility model patent No. ZL201620587096.0 in the chinese patent document, "0005" the driving rack is composed of a rack upper connecting block 5 and a rack part 8 which are connected by bolts through a middle notch slideway of the object connecting plate 1, the rack slideway and the fixing plate 6 are connected and fixed on the object connecting plate 1 dragged through a lower guiding groove of the rack part 8, slideways on both sides of the object connecting plate 1 dragged are arranged in a guiding groove on the fixing frame, and the driving rack is connected with the object connecting plate dragged and then drives the object dragged to reciprocate along the guiding groove of the fixing frame. The transmission rack is formed by connecting an upper rack connecting block 5 and a rack part 8 through a middle notch slideway of an object connecting plate 1 by bolts, the arrangement of the upper connecting block 5 has no substantial effect, the arrangement effect can be completely replaced in the rack part 8, and the excessive manufacturing process of the rack part is caused, so that the toughness of the rack is weakened; meanwhile, in the document, "the rack slideway and the fixed plate 6 are fixedly connected on the dragging object connecting plate 1 through the lower guide groove of the rack part 8, and" the middle rack slideway and the fixed plate 6 "and the dragging object connecting plate 1" are of an integrated structure, are too simple to set and cannot effectively exert the technical characteristics in the manufacturing process of equipment; secondly, in the document [ 0006 ], the slideways on two sides of the middle notch of the dragging object connecting plate 1 are arranged in the guide grooves at the joint of the connecting block 5 on the upper part of the rack and the rack part 8, and the slideways of the rack slideway and the fixing plate 6 are arranged in the guide grooves on the lower parts of two sides of the rack part 8; the front two ends of the middle notch of the dragging object connecting plate 1 are provided with a spring device 7 and a rack limiting and stopping device 9, the transmission rack is provided with two slideways, the two slideways solve the same problem and belong to the design defect, particularly, the comprehensive arrangement of the dragging object connecting plate 1 with the spring device 7 and the rack limiting and stopping device 9 arranged at the front two ends of the middle notch of the dragging object connecting plate 1 becomes a main body fixing structure in technical implementation, the function of dragging the object connecting plate 1 is excessively arranged, the practical application of the technical principle is limited, and the sealing of the main body structure is not convenient.
Disclosure of Invention
In order to solve the technical problems, the invention adopts the technical scheme that the device for automatically limiting the gear and the rack from reciprocating motion to a terminal point fundamentally solves the problems in the prior art.
The technical solution of the invention is as follows: automatic stop device of gear and rack reciprocating motion to terminal point, including casing, fixing base, main shaft, gear, rack, automatic spacing drive block, fixed slide and drag object, its characterized in that: the device is characterized by comprising a sealed shell, wherein a fixed seat is arranged on one side of the shell and is connected with a fixed main shaft, the main shaft penetrates through the shell and is connected with a gear, and the gear is meshed with a rack;
the automatic limiting driving device is characterized in that an automatic limiting driving block is arranged inside the shell, the rack is arranged at the middle position inside the automatic limiting driving block, fixed slideways are arranged on two sides of the outside of the automatic limiting driving block and fixed on the shell, and the end part of the automatic limiting driving block is connected with a dragging object.
Furthermore, guide grooves are formed in two sides of the rack, spring fixing holes are formed in two ends of the rack, and spring fixing rods can be arranged at the two ends of the rack.
Furthermore, the automatic limiting driving block comprises a fixing plate, two stop blocks and two springs, wherein two ends of the fixing plate are respectively fixedly connected with one stop block, the inner end of each stop block is provided with a hole, one end of each spring is arranged in the hole of the corresponding stop block, and the other end of each spring is arranged in the spring fixing hole corresponding to two ends of the rack.
Further, the outer side of the stop block is provided with a guide groove which is the same as the rack, and the stop block and the guide groove are on the same horizontal line.
Furthermore, both ends of the rack are arranged at a certain distance from the corresponding stop blocks.
Furthermore, the rack makes linear reciprocating motion on the fixed slideway through the guide grooves on the two sides.
Furthermore, the automatic limit driving block makes linear reciprocating motion on the fixed slideway through guide grooves on two sides of the rack and guide grooves on the outer side of the stop block.
Further, the gear is meshed with the rack under the action of force to reach the tail end, and the gear still normally rotates when the teeth of the gear pass over the last tooth of the rack, and meanwhile, the dragging object also reaches the end point; after the gear stops rotating, the rack rapidly returns under the counterforce of the spring to be meshed with the gear.
Furthermore, the main structure of the automatic limit driving block can be a square body, a round body, or other bodies.
Further, the main body structure of the shell can be a square body, a round body, or other bodies.
The invention can set the number of gears and the same configuration according to actual needs.
Compared with the prior art, the invention has the following advantages:
1. the automatic limiting driving block in the technical scheme is a main body structure of the automatic limiting driving block, and is simple and practical in structure and convenient to maintain.
2. The automatic limiting driving block in the technical scheme can be connected with different dragging objects at different positions, and is suitable for the connection of the dragging objects in any equipment which does linear reciprocating motion.
3. The rack in the technical scheme does linear reciprocating limiting motion in the automatic limiting driving block, and the rack is disengaged from the gear to finish the automatic limiting process after reaching the end point under the action of force.
4. The rack and the dragging object in the technical scheme are fixedly connected in a separated mode, and the linear reciprocating motion of the rack is not directly limited by the reaction force of the dragging object.
5. The main body structures of the shell and the automatic limiting driving block in the technical scheme can be set into a square body, a round body and other body bodies according to actual requirements.
6. The casing among this technical scheme is convenient for seal.
Drawings
FIG. 1 is a top view of an embodiment of the present invention.
Fig. 2 is a sectional view a-a of fig. 1 according to an embodiment of the present invention.
Fig. 3 is a cross-sectional view B-B of fig. 1 in accordance with an embodiment of the present invention.
Fig. 4 is a cross-sectional view C-C of fig. 2 in accordance with an embodiment of the present invention.
The labels in the figure are: 1. the device comprises a shell, 2, a fixed seat, 3, a main shaft, 4, a gear, 5, a rack, 6, an automatic limiting driving block, 7, a fixed slideway, 8, a dragging object, 9, a guide groove, 10, a spring fixing hole, 60, a fixed plate, 61, a stop block, 62 and a spring.
Detailed Description
The following describes a specific embodiment of the present invention with reference to the drawings, as shown in fig. 1, fig. 2, fig. 3, and fig. 4: the automatic limiting device for the reciprocating motion of the gear and the rack to the end point comprises a shell 1, a fixed seat 2, a main shaft 3, a gear 4, a rack 5, an automatic limiting driving block 6, a fixed slideway 7 and a dragging object 8.
The automatic limit driving block 6 is arranged inside the shell 1, the automatic limit driving block 6 comprises a fixing plate 60, two stop blocks 61 and two springs 62, two ends of the fixing plate 60 are respectively and fixedly connected with one stop block 61, each stop block 61 is provided with a hole, one end of each spring 62 is arranged in the hole of the corresponding stop block 61, the other end of each spring 62 is arranged in the spring fixing hole 10 corresponding to two ends of the rack 5, and the outer side of each stop block 61 is provided with a guide groove 9 which is the same as the rack 5 and is on the same horizontal line with the guide groove 9 of the rack 5.
The fixed slide ways 7 are arranged on two sides of the outer part of the automatic limiting driving block 6, and the fixed slide ways 7 are fixed on the shell 1; the rack 5 makes linear reciprocating motion on the fixed slideway 7 through the guide grooves 9 on the two sides; the automatic limit driving block 6 makes linear reciprocating motion on the fixed slideway 7 through guide grooves 9 on the two sides of the rack 5 and the outer side of the stop block; the tail end part of the automatic limit driving block 6 is connected with a dragged object 8, and the automatic limit driving block 6 drives the dragged object 8 to do linear reciprocating motion on the fixed slideway 7; the main structure of the automatic limit driving block 6 is square, and can also be round or other shapes.
The rack 5 is connected with the automatic limit driving block 6 in a sliding limit manner, and because a certain distance is reserved between the two ends of the rack 5 and the corresponding stop blocks 61, the condition that the gear 4 and the rack 5 have enough space to complete the separation and meshing of teeth after the dragged object 8 reaches the end point is met; when the meshed part of the gear 4 and the rack 5 reaches the tail end under the action of force and the teeth of the gear 4 cross the last tooth of the rack 5, the dragging object 8 also reaches the terminal point, and the teeth of the gear 4 after reaching the terminal point cross the last tooth of the rack 5 and still normally rotate; after the linear reciprocating motion of the rack 5 reaches the end point, the linear reciprocating motion is not directly limited by the reaction force of the dragged object 8, and after the rotation of the gear 4 stops, the rack 5 is rapidly returned under the reaction force of the spring 62 to be meshed with the gear 4.
The specific working process of the embodiment of the invention is as follows: the main shaft 3 provides power, the gear 4 pushes the rack 5 meshed with the gear to drive the spring 62 to move linearly along the fixed slideway 7 under the action of force, meanwhile, the automatic limit driving block 6 drives the dragged object 8 to move linearly in the fixed slideway 7, when the force is greater than the reaction force of the spring 62, the spring 62 is extruded into the hole of the corresponding stop block 61, at the moment, the rack 5 is contacted with the stop block 61 and moves continuously, and when the meshed part of the gear 4 and the rack 5 reaches the tail end and the teeth of the gear 4 cross the last teeth of the rack 5, the dragged object 8 also reaches the terminal point; because the rack 4 is in sliding limit connection with the automatic limit driving block 6, and the two ends of the rack 5 are provided with a certain distance from the corresponding stop blocks 61, the teeth of the gear 4 pass over the last tooth of the rack 5 under the action of force to complete disengagement, but the gear 4 still normally rotates under the action of force.
When the force of the gear 4 is stopped, the end teeth of the rack 5 are rapidly returned to the state of meshing with the gear 4 under the reaction force of the spring 62, and the purpose of opening or closing an object to achieve a reciprocating motion without damaging the electric equipment without an electric control device is achieved.
Finally, the description is as follows: the above description is only one specific embodiment of the present invention, and this embodiment is only used for illustrating the technical solutions of the present invention, and not for limiting the other forms; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention; the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the technical solution scope of the present invention; the protection scope of the present invention is not limited to the above, and any equivalent changes and modifications based on the technical solution of the present invention belong to the protection scope of the technical solution of the present invention.
Claims (8)
1. Automatic stop device of gear and rack reciprocating motion to terminal point, including casing, fixing base, main shaft, gear, rack, automatic spacing drive block, fixed slide and drag object, its characterized in that: the device is characterized by comprising a sealed shell, wherein a fixed seat is arranged on one side of the shell and is connected with a fixed main shaft, the main shaft penetrates through the shell and is connected with a gear, and the gear is meshed with a rack; an automatic limiting driving block is arranged in the shell, the rack is arranged in the middle of the inside of the automatic limiting driving block, fixed slideways are arranged on two sides of the outside of the automatic limiting driving block and fixed on the shell, and the tail end part of the automatic limiting driving block is connected with a dragging object; the automatic limiting driving block comprises a fixing plate, two stop blocks and two springs, wherein two ends of the fixing plate are respectively fixedly connected with one stop block, the inner end of each stop block is provided with a hole, one end of each spring is arranged in the hole of the corresponding stop block, and the other end of each spring is arranged in the spring fixing holes corresponding to two ends of the rack; the gear is meshed with the rack under the action of force to reach the tail end, and when the teeth of the gear cross the last tooth of the rack, the gear still normally rotates, and meanwhile, the dragging object also reaches the end point; after the gear stops rotating, the rack rapidly returns under the counterforce of the spring to be meshed with the gear.
2. The device for automatically limiting the reciprocating motion of the gear and the rack to the end point according to claim 1, is characterized in that: guide grooves are formed in two sides of the rack.
3. The device for automatically limiting the reciprocating motion of the gear and the rack to the end point according to claim 1, is characterized in that: the outer side of the stop block is provided with a guide groove, and the stop block and the guide groove are on the same horizontal line.
4. The device for automatically limiting the reciprocating motion of the gear and the rack to the end point according to claim 1, is characterized in that: and distances are reserved between the two ends of the rack and the corresponding stop blocks.
5. The device for automatically limiting the reciprocating motion of the gear and the rack to the end point according to claim 1, is characterized in that: the rack makes linear reciprocating motion on the fixed slideway through the guide grooves on the two sides.
6. The device for automatically limiting the reciprocating motion of the gear and the rack to the end point according to claim 1, is characterized in that: the automatic limit driving block makes linear reciprocating motion on the fixed slideway through the guide grooves on the two sides of the rack and the guide grooves on the outer side of the stop block.
7. The device for automatically limiting the reciprocating motion of the gear and the rack to the end point according to claim 1, is characterized in that: the main structure of the automatic limiting driving block is cuboid or cylinder.
8. The device for automatically limiting the reciprocating motion of the gear and the rack to the end point according to claim 1, is characterized in that: the main structure of the shell is a cuboid or a cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811512066.3A CN109356985B (en) | 2018-12-11 | 2018-12-11 | Automatic limiting device for reciprocating motion of gear and rack to end point |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811512066.3A CN109356985B (en) | 2018-12-11 | 2018-12-11 | Automatic limiting device for reciprocating motion of gear and rack to end point |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109356985A CN109356985A (en) | 2019-02-19 |
| CN109356985B true CN109356985B (en) | 2021-11-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811512066.3A Active CN109356985B (en) | 2018-12-11 | 2018-12-11 | Automatic limiting device for reciprocating motion of gear and rack to end point |
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| Country | Link |
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| CN (1) | CN109356985B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2507304A1 (en) * | 1975-02-20 | 1976-09-09 | Krasch Ges Fuer Schalt Und Reg | Transmission with displaceable rack - has motor driven rack consisting of pull and push rod |
| CN205678077U (en) * | 2016-06-12 | 2016-11-09 | 大连西力博机电设备科技有限公司 | Wheel and rack reciprocates to terminal tooth and is disengaged from device |
| CN106763591A (en) * | 2016-12-05 | 2017-05-31 | 黎炜杰 | A kind of two-way ejection of rack-and-pinion and resetting-mechanism |
| CN107420197A (en) * | 2017-04-15 | 2017-12-01 | 邱秀芳 | Push rod list oscillating tooth high-efficiency lubricating is driven four-cylinder internal combustion engine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009287687A (en) * | 2008-05-29 | 2009-12-10 | Aisin Ai Co Ltd | Shifting device for power shaft |
-
2018
- 2018-12-11 CN CN201811512066.3A patent/CN109356985B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2507304A1 (en) * | 1975-02-20 | 1976-09-09 | Krasch Ges Fuer Schalt Und Reg | Transmission with displaceable rack - has motor driven rack consisting of pull and push rod |
| CN205678077U (en) * | 2016-06-12 | 2016-11-09 | 大连西力博机电设备科技有限公司 | Wheel and rack reciprocates to terminal tooth and is disengaged from device |
| CN106763591A (en) * | 2016-12-05 | 2017-05-31 | 黎炜杰 | A kind of two-way ejection of rack-and-pinion and resetting-mechanism |
| CN107420197A (en) * | 2017-04-15 | 2017-12-01 | 邱秀芳 | Push rod list oscillating tooth high-efficiency lubricating is driven four-cylinder internal combustion engine |
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| Publication number | Publication date |
|---|---|
| CN109356985A (en) | 2019-02-19 |
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Address after: 116200 PI Kou Jie Dao Huolu Si Cun Wang Dian, Pulandian District, Dalian City, Liaoning Province Applicant after: Dalian Guangzhou Science and Technology Co.,Ltd. Address before: 116200 Wang Dian, Xiutun River Village, Pikou Street, Pulandian District, Dalian City, Liaoning Province Applicant before: DALIAN XILIBO ELECTROMECHANICAL EQUIPMENT TECHNOLOGY CO.,LTD. |
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