Stepless speed change bench drill
First Claim
1. A stepless speed change bench drill, comprising:
- a pedestal (19);
a vertical post (18) mounted on said pedestal (19);
a worktable (17) and a cabinet (16) which are mounted on said vertical post (18);
a driving shaft (2) and a main shaft (24) which are mounted on said upper portion of said cabinet (16);
a motor (1) for transmitting power to said driving shaft (2);
a motor movable wheel (4) and a motor stationary wheel (5) which are mounted on said driving shaft (2); and
a main shaft movable wheel (11) and a main shaft stationary wheel (12) which are mounted on said main shaft (24), wherein a speed regulation device is provided between the driving shaft and the main shaft, said speed regulation device comprises a speed regulation shaft (9) provided with a threaded section (31), said threaded section (31) is engaged with a threaded hole (25) formed on a bearing block (10), said bearing block (10) is simultaneously mounted on the main shaft (24), said speed regulation shaft (9) is rotated by a speed regulation hand wheel (15).
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Accused Products
Abstract
This invention relates to stepless speed change bench drill, comprising a pedestal, a vertical post mounted on the pedestal, a worktable and a cabinet mounted on the vertical post, a driving shaft and a main shaft mounted on the upper portion of the cabinet, a motor for transmitting power to the driving shaft, a motor movable wheel and a motor stationary wheel mounted on the driving shaft, and a main shaft movable wheel and a main shaft stationary wheel mounted on the main shaft, a speed regulation shaft provided with a threaded section and mounted between the driving shaft and the main shaft, the threaded section is engaged with a threaded hole formed on a bearing block, the bearing block is simultaneously mounted on the main shaft, the speed regulation shaft is rotated by a speed regulation hand wheel. The operation of the speed change is simple, short-cut and labor saving, the drill does not need to be stopped at the time of speed change, the speed change is accurate, the effect of the self locking after speed change is good, and it can meet the requirements of constant power within the largest range of the speed change and can achieve continuous and uninterrupted speed change.
15 Citations
10 Claims
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1. A stepless speed change bench drill, comprising:
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a pedestal (19);
a vertical post (18) mounted on said pedestal (19);
a worktable (17) and a cabinet (16) which are mounted on said vertical post (18);
a driving shaft (2) and a main shaft (24) which are mounted on said upper portion of said cabinet (16);
a motor (1) for transmitting power to said driving shaft (2);
a motor movable wheel (4) and a motor stationary wheel (5) which are mounted on said driving shaft (2); and
a main shaft movable wheel (11) and a main shaft stationary wheel (12) which are mounted on said main shaft (24), wherein a speed regulation device is provided between the driving shaft and the main shaft, said speed regulation device comprises a speed regulation shaft (9) provided with a threaded section (31), said threaded section (31) is engaged with a threaded hole (25) formed on a bearing block (10), said bearing block (10) is simultaneously mounted on the main shaft (24), said speed regulation shaft (9) is rotated by a speed regulation hand wheel (15). - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification