CN2495396Y - Stepless gearing bench drill - Google Patents
Stepless gearing bench drill Download PDFInfo
- Publication number
- CN2495396Y CN2495396Y CN 01261750 CN01261750U CN2495396Y CN 2495396 Y CN2495396 Y CN 2495396Y CN 01261750 CN01261750 CN 01261750 CN 01261750 U CN01261750 U CN 01261750U CN 2495396 Y CN2495396 Y CN 2495396Y
- Authority
- CN
- China
- Prior art keywords
- shaft
- speed change
- shift fork
- main shaft
- wheel
- 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, which relates to the machining equipment technique field, is an infinite variable speed bench drill. The bench drill has a base and a column equipped with a bench and a box is arranged on the base. A transmission shaft, an intermediate shaft and a main shaft are mounted on the top of the box. The power of the transmission shaft comes from a motor. A transmission fixed wheel and a transmission moving wheel are mounted on the transmission shaft. A lower moving wheel, a fixed wheel group and an upper moving wheel are mounted on the intermediate shaft. A main shaft fixed wheel and a main shaft movable wheel are mounted on the main shaft. A declutch shift shaft is arranged between the intermediate shaft and the main shaft. A declutch shift body is mounted on the declutch shift shaft which is equipped with a threaded section. The thread of the declutch shift shaft mates with the inner thread of the declutch shift body. The declutch shift shaft is driven to rotate by a speed regulating handwheel. The utility model has an easy, rapid, effort-saving and accurate speed change operation and a good self locking effect after the change. In addition, the utility model, which does not have to stop while the speed is changed, satisfies the requirement of transmitting at a constant rate within the largest speed change range and achieves a continuous speed change, non-stop speed change and positive infinite variable speed change.
Description
Technical field:
The utility model relates to the machining apparatus technical field, is a kind of stepless speed change bench drill.
The various bench drills of public use in the market all adopt the tower belt pulley to adjust rotating speed.When the needs speed change, must shut down and open belt housing, then belt is moved to another groove by a groove, to realize the purpose of reduction of speed or raising speed.The deficiency of this speed governing is, complicated operation, production efficiency are low, and are absolutely unsafe, and because the groove of cone pulley is limit, can only realize step speed regulation, for example: five speed, 12 speed etc.Realize stepless speed regulation in order to change this situation, those skilled in the art is all making great efforts the design stepless speed change bench drill, 97206964.X the Berch drill with stepless speed regulation of number patent disclosure, because its speed adjusting gear complex structure, speed adjustable range such as limits at deficiency, so far do not form product, the applicant is in the Berch drill with stepless speed regulation and the arrangements for speed regulation of March calendar year 2001 and SEPARATE APPLICATION in June, though can realize stepless speed regulation, and have many advantages, but, through finding after in the recent period a large amount of repetition tests, still there is some deficiency in it: can not make bench drill realize continuous change and uninterrupted speed change, accuracy and the self-locking state after the speed change during speed change are not good enough, and difficulty satisfies trickle speed change request etc.
Summary of the invention:
The purpose of this utility model is; a kind of stepless speed change bench drill is provided; make it have following advantage: variable speed operation is simple, quick, laborsaving, do not need during speed change to shut down; can realize electrodeless variable-speed; speed change is accurate; self-locking after the speed change is effective, can satisfy the requirement of perpetual motion rate transmission in maximum slewing range, can realize continuous change and uninterrupted speed change etc.
The utility model is in order to solve the existing in prior technology problem, adopt following scheme to solve, it has base, column is installed on the base, installment work platform and casing on the column, power transmission shaft is installed on casing top, jackshaft and main shaft, the power of power transmission shaft is imported by motor, and transmission fixed wheel and transmission driving wheel are installed on the power transmission shaft, driving wheel down is installed on the jackshaft, the fixed wheel group reaches and goes up driving wheel, and main shaft fixed wheel and main shaft driving wheel are installed on the main shaft, between jackshaft and the main shaft declutch shift shaft is installed, the shift fork body is installed on the declutch shift shaft, thread segment is set on the declutch shift shaft, and the screw thread of declutch shift shaft matches with the internal thread of shift fork body, and declutch shift shaft is driven by speed-regulating hand wheel and rotates.Lower shift fork on the shift fork body can be an one with the shift fork body, and upper shift fork adopts securing member to be installed in shift fork body upper end.Upper shift fork on the shift fork body is installed on the top chock, and the lower shift fork on the shift fork body is installed on the step.Driven wheel of differential is installed in the declutch shift shaft lower end, and speed-regulating hand wheel is installed in driven wheel of differential and drive bevel gear engagement on the drive bevel gear.In main shaft fixed wheel outer the digital display sensor is installed, the digital display sensor is connected with the digital display printed substrate by lead, and the digital display printed substrate is connected with digital display screen.Switch enclosure is installed on the casing, digital display screen is installed on the switch enclosure.Offer groove on the edge of main shaft fixed wheel.
The utility model knows to have following advantage through a large amount of tests: variable speed operation is simple, quick; do not need during laborsaving, speed change to shut down; can realize infinitely variable speeds, speed change is accurate, and the self-locking after the speed change is effective; can realize trickleer speed change; can in maximum slewing range, satisfy the requirement of permanent power transmission, can realize continuous change and uninterrupted speed change, and rotating speed is accurately shown; speed-regulating hand wheel can speed governing in greater than 360 degree scopes, low cost of manufacture etc.
Description of drawings:
Accompanying drawing 1 is the structural representation after the utility model is opened protective cover, accompanying drawing 2 is I portion structure for amplifying schematic diagrames in the accompanying drawing 1, accompanying drawing 3 is A-A section structure for amplifying schematic diagrames in the accompanying drawing 2, and accompanying drawing 4 is that K is to structural representation in the accompanying drawing 2, and accompanying drawing 5 is digital display structural representations.
The specific embodiment:
1 is base among the figure, column 24 is installed on the base 25, installment work platform 23 and casing 20 on the column 24, power transmission shaft 31 is installed on casing 20 tops, jackshaft 32 and main shaft 16, the power of power transmission shaft 31 is by motor 1 input, transmission fixed wheel 3 and transmission driving wheel 4 are installed on the power transmission shaft 31, driving wheel 8 down is installed on the jackshaft 32, fixed wheel group 9 reaches and goes up driving wheel 10, main shaft fixed wheel 17 and main shaft driving wheel 18 are installed on the main shaft 16, declutch shift shaft 13 is installed between jackshaft 32 and the main shaft 16, shift fork body 14 is installed on the declutch shift shaft 13, thread segment 33 is set on the declutch shift shaft 13, the screw thread of declutch shift shaft 13 matches with the internal thread of shift fork body 14, declutch shift shaft is driven by speed-regulating hand wheel and rotates, lower shift fork 35 on the shift fork body 14 is an one with shift fork body 14, also can adopt the structure of the fastening installation of split production, and upper shift fork 12 adopts securing member to be installed in shift fork body 14 upper ends.Upper shift fork 12 on the shift fork body 14 is installed on the top chock 34, and the lower shift fork 35 on the shift fork body 14 is installed on the step 11.Driven wheel of differential 27 is installed in declutch shift shaft 13 lower ends, and driven wheel of differential 27 and drive bevel gear 30 engagements are installed speed-regulating hand wheel 21 on the drive bevel gear 30.In main shaft fixed wheel 17 outers digital display sensor 15 is installed, digital display sensor 15 is connected with digital display printed substrate 38 by lead 36, and digital display printed substrate 38 is connected with digital display screen 37.Switch enclosure 22 is installed on the casing 20, digital display screen 37 is installed on the switch enclosure 22,, offer groove 39 on the edge of main shaft fixed wheel 17 in order to show rotating speed.
When the utility model needs speed change, rotate speed-regulating hand wheel 21, driving declutch shift shaft 13 by drive bevel gear 30 and driven wheel of differential 27 rotates, because the screw thread 33 on the declutch shift shaft 13 and the screw-internal thread fit of shift fork body 14, the rotation of declutch shift shaft 13 promotes shift fork body 14 and moves up and down, 13 rotations of declutch shift shaft, do not move up and down, thereby last lower shift fork drive top chock 34 and step 11 on the shift fork body 14 are moved up and down simultaneously, and then driving wheel 10 is gone up in drive and following driving wheel 8 moves up and down, belt 7 and belt 2 and the belt pulley contact diameter of fixed wheel group 9 are changed, and and then make belt 2 and transmission fixed wheel 3, the contact diameter of transmission fixed wheel 4 changes, belt 7 and main shaft fixed wheel 17, the contact diameter of main shaft driving wheel 18 changes, and finally reaches the purpose of speed change.The rotation of speed-regulating hand wheel 21 is continuous in the utility model structure, the rotation of declutch shift shaft 13 also is continuous, moving up and down of last lower shift fork on the shift fork body 14 also is continuous, each driving wheel that contacts with belt and the belt transmission diameter variation of fixed wheel are continuous equally, so the utility model can be realized continuous change and uninterrupted speed change.The circuit that adopts in the digital display structure of the utility model rotating speed is finished by known technology.5 is power transmission shaft springs among the utility model figure, the 19th, and main shaft spring, the 26th, support set, the 29th, ring flange, the 6th, guard shield.The utility model not detailed description is known technology.
Claims (7)
1, stepless speed change bench drill, it has base (25), base (25) is gone up column (24) is installed, column (24) is gone up installment work platform (23) and casing (20), power transmission shaft (31) is installed on casing (20) top, jackshaft (32) and main shaft (16), the power of power transmission shaft (31) is imported by motor (1), power transmission shaft (31) is gone up transmission fixed wheel (3) and transmission driving wheel (4) is installed, jackshaft (32) is gone up driving wheel (8) down is installed, fixed wheel group (9) reaches and goes up driving wheel (10), main shaft (16) is gone up main shaft fixed wheel (17) and main shaft driving wheel (18) is installed, it is characterized in that: between jackshaft (32) and the main shaft (16) declutch shift shaft (13) is installed, declutch shift shaft (13) is gone up shift fork body (14) is installed, thread segment (33) is set on the declutch shift shaft (13), the screw thread of declutch shift shaft (13) matches with the internal thread of shift fork body (14), and declutch shift shaft (13) is driven by speed-regulating hand wheel and rotates.
2, stepless speed change bench drill according to claim 1 is characterized in that: the lower shift fork (35) on the shift fork body (14) can be an one with shift fork body (14), and upper shift fork (12) adopts securing member to be installed in shift fork body (14) upper end.
3, stepless speed change bench drill according to claim 1 is characterized in that: the upper shift fork (12) on the shift fork body (14) is installed on the top chock (34), and the lower shift fork (35) on the shift fork body (14) is installed on the step (11).
4, stepless speed change bench drill according to claim 1 is characterized in that: driven wheel of differential (27) is installed in declutch shift shaft (13) lower end, driven wheel of differential (27) and drive bevel gear (30) engagement, and drive bevel gear (30) goes up installs speed-regulating hand wheel (21).
5, stepless speed change bench drill according to claim 1, it is characterized in that: digital display sensor (15) is installed in main shaft fixed wheel (17) outer, digital display sensor (15) is connected with digital display printed substrate (38) by lead (36), and digital display printed substrate (38) is connected with digital display screen (37).
6, stepless speed change bench drill according to claim 1 is characterized in that: casing (20) is gone up switch enclosure (22) is installed, and switch enclosure (22) is gone up digital display screen (37) is installed.
7, stepless speed change bench drill according to claim 1 is characterized in that: offer groove (39) on the edge of main shaft fixed wheel (17).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01261750 CN2495396Y (en) | 2001-09-20 | 2001-09-20 | Stepless gearing bench drill |
| US10/223,314 US6779952B2 (en) | 2001-09-20 | 2002-08-19 | Stepless speed change bench drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01261750 CN2495396Y (en) | 2001-09-20 | 2001-09-20 | Stepless gearing bench drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2495396Y true CN2495396Y (en) | 2002-06-19 |
Family
ID=33669626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01261750 Expired - Fee Related CN2495396Y (en) | 2001-09-20 | 2001-09-20 | Stepless gearing bench drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2495396Y (en) |
-
2001
- 2001-09-20 CN CN 01261750 patent/CN2495396Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |