Trephine with transmission device and limiting device

Abstract

The utility model discloses a trephine with a transmission device and a limiting device, and relates to the field of electric tools, the front end of a speed reduction transmission device is connected with a head shell I and a head shell II, a trephine blade, a left-right tightness adjusting seat and a front-back tightness adjusting device are arranged between the head shell I and the head shell II, and the head shell I and the head shell II are fixedly connected through a positioning rod. A connecting hole is formed in the middle of the water spraying plate, the water spraying plate penetrates through the positioning rod through the connecting hole, a water inlet channel is formed in the water spraying plate, and water spraying openings are formed in the two ends of the water inlet channel. The left-right tightness adjusting seat is arranged in the head shell, the tightness adjusting screw abuts against one side of the left-right tightness adjusting seat, the left-right tightness adjusting seat moves inwards or outwards to adjust the left-right tightness of the trephine blade, and the front-back tightness adjusting device is arranged in front of the inner side ring of the trephine blade to limit forward movement of the trephine blade. Meanwhile, the tightness can be adjusted front and back.

Description

Technical field:

[0001] The utility model relates to a ring saw with a transmission and limiting device, belonging to the technical field of electric tools. Background technology:

[0002] At present, most existing construction sites use concrete cutting equipment to cut concrete, wood and other materials. However, concrete cutting equipment is not very portable when carried, and the cutting effect of concrete cutting equipment is greatly affected by the worker's skills during operation, so the stability and accuracy of cutting cannot be guaranteed. At the same time, concrete cutting equipment is easily hit during the cutting process, which can damage the cutting blade, shorten its service life, and may even cause harm to the operator, posing a great safety hazard.

[0003] The existing construction site has large defects in the operation of concrete cutting equipment, so a ring saw is introduced as needed. The ring saw is easy to use and is less affected by the workers' skills. However, the existing ring saw lacks a limit stabilization mechanism when in use, so the ring saw blade is still prone to deviation during the cutting operation, resulting in an uneven cutting surface and poor cutting effect. In addition, the ring saw blade will vibrate during high-speed rotation, which is easy to damage the ring saw blade, shortening the service life of the ring saw blade. At the same time, the operator is prone to injury, and there are great safety hazards. Therefore, how to overcome the above-mentioned technical problems and defects has become a key issue that needs to be solved. Utility model content:

[0004] In view of the above problems, the technical problem to be solved by the utility model is to provide a ring saw with a transmission and limiting device.

[0005] The utility model discloses a ring saw with a transmission and limiting device, which comprises a main machine driving device, a reduction transmission device, a handle, a head shell one, a head shell two, a ring saw blade, a left and right tension adjustment seat, a front and rear tension adjustment device, a positioning rod, a water spray plate, a dust cover, a grip, and a water baffle. The front end of the main machine driving device is provided with a reduction transmission device, the rear end of the main machine driving device is provided with a handle, the front end of the handle is fixedly connected with the upper part of the reduction transmission device, the front end of the reduction transmission device is connected with the head shell one and the head shell two, the ring saw blade, the left and right tension adjustment seat and the front and rear tension adjustment device are arranged between the head shell one and the head shell two, the head shell one and the head shell two are fixedly connected through the positioning rod, a connecting hole is provided in the middle of the water spray plate, and the positioning rod is penetrated through the connecting hole, a water inlet channel is provided on the water spray plate, and water spray ports are provided at both ends of the water inlet channel, dust covers and grips are arranged above the head shell one and the head shell two, and a water baffle is fixed to the lower part of the head shell two by screws.

[0006] Preferably, the reduction transmission device is composed of a transmission pinion, a reduction gear, a bearing group 1, a transmission wheel group 1, a driving shaft 2, a bearing group 2 and a transmission wheel group 2. The transmission pinion is fixed on the motor output shaft of the main drive device. The transmission pinion and the reduction gear are designed to be horizontally parallel and mesh with each other. A driving shaft 1 is fixed on the reduction gear. A bearing group 1 and a transmission wheel group 1 are fixed on the driving shaft 1. A bearing group 2 and a transmission wheel group 2 are fixed on the driving shaft 2, and the driving shaft 2 is arranged in a head shell 1. The ring saw blade is arranged between the transmission wheel group 1 and the transmission wheel group 2.

[0007] Preferably, the second bearing group is arranged in the left and right tension adjustment seats, and a tension adjustment screw is arranged on one side of the left and right tension adjustment seats. The left and right tension adjustment of the ring saw blade is completed by moving the left and right tension adjustment seats inward or outward.

[0008] Preferably, a water spray pipe connecting through hole is provided on the head shell 2, a water spray pipe is inserted into the water spray pipe connecting through hole, one end of the water spray pipe is connected to a nozzle, the nozzle is arranged at the water inlet channel of the water spray plate, and water is diverted to the water spray outlet through the water inlet channel.

[0009] Preferably, the front and rear tension adjustment device is composed of an adjustment seat main component and an adjustment seat, and adjustment seats are provided at the upper and lower ends of the adjustment seat main component, and limiting guide wheels are provided between the adjustment seat main component and the adjustment seat, and the limiting guide wheel is provided in front of the inner circle of the ring saw blade, and an adjustment groove is provided above the adjustment seat main component, and two adjustment positioning screws are provided in the adjustment groove, wherein an upper track and a lower track are provided on one side of the adjustment seat main component, and are respectively inserted into the upper and lower rail rods of the head shell two, and the adjustment seat main component moves back and forth on the upper and lower rail rods, and the front and rear tension adjustment limit is completed by locking the adjusting positioning screws, mainly through the movement of the adjustment seat main component, and the limiting guide wheel also moves back and forth.

[0010] The beneficial effects of the utility model are as follows: it has a reasonable structural design, simple operation and convenient use. By arranging left and right tension adjustment seats in the head shell, the tension adjustment screw is pressed against one side of the left and right tension adjustment seats, and the left and right tension adjustment seats are moved inward or outward to complete the adjustment of the left and right tightness of the ring saw blade. By arranging front and rear tension adjustment devices in front of the inner circle of the ring saw blade, the forward movement of the ring saw blade is limited, and the tightness can be adjusted front and back at the same time, which effectively enhances the stability of the ring saw blade, ensures the flatness of the cutting surface, and improves the use effect and service life of the ring saw. Description of the drawings:

[0011] For ease of explanation, the present invention is described in detail by the following specific implementations and drawings.

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is an exploded view of the utility model;

[0014] Figure 3 It is the front view of the utility model;

[0015] Figure 4 It is a rear view of the utility model;

[0016] Figure 5 It is a side view of the utility model;

[0017] Figure 6 This is a schematic diagram of the installation structure of the water spray pipe in the utility model;

[0018] Figure 7 This is a schematic diagram of the installation structure of the water spray plate in the utility model;

[0019] Figure 8 This is a schematic diagram of the installation structure of the reduction transmission device in the utility model;

[0020] Fig. 9 It is a schematic diagram of the structure of the front and rear tension adjustment device in the utility model;

[0021] Fig.10 It is a bottom view of the front and rear tension adjustment device in the utility model.

[0022] 1-main drive device; 101-motor output shaft; 2-reduction transmission device; 21-transmission pinion; 22-reduction gear; 221-driving shaft 1; 23-bearing group 1; 24-transmission wheel group 1; 25-driving shaft 2; 26-bearing group 2; 27-transmission wheel group 2; 3-handle; 4-head shell 1; 5-head shell 2; 51-spray pipe connection hole; 6-ring saw blade; 7-left and right tension adjustment seat; 71-tightness Adjusting screw; 8-front and rear tension adjusting device; 81-adjusting seat main part; 82-adjusting seat; 83-limiting guide wheel; 84-adjusting slot; 85-adjusting positioning screw; 86-upper track; 87-lower track; 9-positioning rod; 10-water spray plate; 1001-connecting hole; 1002-water inlet channel; 1003-water spray port; 11-dust cover; 12-handle; 13-water retaining plate; 14-water spray pipe; 141-spray head. Specific implementation method:

[0023] like Figure 1-Figure 10As shown, this specific embodiment adopts the following technical scheme: it includes a main drive device 1, a reduction transmission device 2, a handle 3, a head shell 1 4, a head shell 2 5, a ring saw blade 6, a left and right tension adjustment seat 7, a front and rear tension adjustment device 8, a positioning rod 9, a water spray plate 10, a dust cover 11, a grip 12, and a water retaining plate 13. The front end of the main drive device 1 is provided with a reduction transmission device 2, and the rear end of the main drive device 1 is provided with a handle 3. The front end of the handle 3 is fixedly connected to the upper part of the reduction transmission device 2, and the front end of the reduction transmission device 2 is connected to the head shell 1 4 and the head shell 2 5. A ring saw blade 6, a left and right tension adjustment seat 7 and a front and rear tension adjustment device 8 are arranged between the head shell 1 4 and the head shell 2 5. The head shell 1 4 and the head shell 2 5 are fixedly connected by a positioning rod 9. A connecting hole 1001 is arranged in the middle of the water spray plate 10, and the water spray plate 10 is penetrated on the positioning rod 9 through the connecting hole 1001. A water inlet channel 1002 is arranged on the water spray plate 10, and water spray ports 1003 are arranged at both ends of the water inlet channel 1002. A dust cover 11 and a handle 12 are arranged above the head shell 1 4 and the head shell 2 5, and a water retaining plate 13 is fixed to the bottom of the head shell 2 5 by screws.

[0024] The reduction transmission device 2 is composed of a transmission pinion 21, a reduction gear 22, a bearing group 1 23, a transmission wheel group 1 24, a driving shaft 25, a bearing group 26 and a transmission wheel group 27. The transmission pinion 21 is fixed on the motor output shaft 101 of the main drive device 1. The transmission pinion 21 and the reduction gear 22 are designed to be horizontally parallel and mesh with each other. A driving shaft 1 221 is fixed on the reduction gear 22. The bearing group 1 23 and the transmission wheel group 1 24 are fixed on the driving shaft 1 221. The bearing group 26 and the transmission wheel group 2 27 are fixed on the driving shaft 25, and are arranged in the head shell 1 4. The ring saw blade 6 is arranged between the transmission wheel group 1 24 and the transmission wheel group 2 27.

[0025] The second bearing group 26 is arranged in the left and right tension adjustment seat 7. A tension adjustment screw 71 is arranged on one side of the left and right tension adjustment seat 7. The left and right tension adjustment of the ring saw blade 6 is completed by moving the left and right tension adjustment seat inward or outward.

[0026] A water spray pipe connecting hole 51 is provided on the head shell 2 5, and a water spray pipe 14 is inserted into the water spray pipe connecting hole 51. One end of the water spray pipe 14 is connected to a nozzle 141. The nozzle 141 is arranged at the water inlet channel 1002 of the water spray plate 10, and water is diverted to the water spray port 1003 through the water inlet channel 1002 to discharge water.

[0027] The front and rear tension adjustment device 8 is composed of an adjustment seat main component 81 and an adjustment seat 82. The adjustment seat 82 is set at the upper and lower ends of the adjustment seat main component 81. A limit guide wheel 83 is set between the adjustment seat main component 81 and the adjustment seat 82. The limit guide wheel 83 is set in front of the inner circle of the ring saw blade 6. An adjustment groove 84 is set above the adjustment seat main component 81. Two adjustment positioning screws 85 are set in the adjustment groove 84. One side of the adjustment seat main component 81 is provided with an upper track 86 and a lower track 87, which are respectively inserted into the upper and lower rails of the head shell 5. The adjustment seat main component 81 moves back and forth on the upper and lower rails, and the front and rear tension adjustment limit is completed by locking the adjustment positioning screw 85. The movement of the adjustment seat main component 81 is the main process, and the limit guide wheel 83 also moves back and forth.

[0028] The replacement principle of the ring saw blade in this specific embodiment is as follows: by removing the positioning rod 9, the head shell 4 is opened. The head shell 4 adopts a door-opening design. The left and right tension adjustment seats 7 on the inner side of the head shell 4 are opened to drive the transmission wheel group 27 to open. At this time, the ring saw blade 6 can be disassembled and replaced.

[0029] The specific implementation method has a reasonable structural design, simple operation and easy use. By arranging left and right tension adjustment seats in the head shell, the tension adjustment screw is pressed against one side of the left and right tension adjustment seats, and the left and right tension adjustment seats are moved inward or outward to complete the adjustment of the left and right tightness of the ring saw blade. By arranging front and rear tension adjustment devices in front of the inner circle of the ring saw blade, the forward movement of the ring saw blade is limited, and the tightness can be adjusted front and back at the same time, which effectively enhances the stability of the ring saw blade, ensures the flatness of the cutting surface, and improves the use effect and service life of the ring saw.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A ring saw with a transmission and limiting device, characterized in that: The invention comprises a main machine driving device (1), a reduction transmission device (2), a handle (3), a head shell one (4), a head shell two (5), a ring saw blade (6), a left and right tension adjustment seat (7), a front and rear tension adjustment device (8), a positioning rod (9), a water spray plate (10), a dust cover (11), a grip (12), and a water baffle (13). The front end of the main machine driving device (1) is provided with a reduction transmission device (2), the rear end of the main machine driving device (1) is provided with a handle (3), the front end of the handle (3) is fixedly connected to the upper part of the reduction transmission device (2), the front end of the reduction transmission device (2) is connected to the head shell one (4) and the head shell two (5), the head shell one (4) is connected to the head shell A ring saw blade (6), a left and right tension adjustment seat (7) and a front and rear tension adjustment device (8) are arranged between the shells (5); the head shell (4) and the head shell (5) are fixedly connected via a positioning rod (9); a connection hole (1001) is arranged in the middle of the water spray plate (10), and the water spray plate (10) is penetrated on the positioning rod (9) via the connection hole (1001); a water inlet channel (1002) is arranged on the water spray plate (10); water spray ports (1003) are arranged at both ends of the water inlet channel (1002); dust covers (11) and a handle (12) are arranged above the head shells (4) and the head shells (5); a water retaining plate (13) is fixed below the head shell (5) via screws.

2. A ring saw with a transmission and limiting device according to claim 1, characterized in that: The reduction transmission device (2) is composed of a transmission pinion (21), a reduction gear (22), a bearing group 1 (23), a transmission wheel group 1 (24), a driving shaft 2 (25), a bearing group 2 (26) and a transmission wheel group 2 (27). The transmission pinion (21) is fixed on the motor output shaft (101) of the main drive device (1). The transmission pinion (21) and the reduction gear (22) are designed to be arranged side by side in the horizontal direction and mesh with each other. The reduction gear (22) is fixed with a driving shaft 1 (221), the bearing group 1 (23) and the transmission wheel group 1 (24) are fixed on the driving shaft 1 (221), the bearing group 1 (26) and the transmission wheel group 2 (27) are fixed on the driving shaft 2 (25), and the driving shaft 2 (25) is arranged in the head shell 1 (4). The ring saw blade (6) is arranged between the transmission wheel group 1 (24) and the transmission wheel group 2 (27).

3. A ring saw with a transmission and limiting device according to claim 2, characterized in that: The bearing group 2 (26) is arranged in the left and right tension adjustment seats (7), and a tension adjustment screw (71) is arranged on one side of the left and right tension adjustment seats (7).

4. A ring saw with a transmission and limiting device according to claim 1, characterized in that: The head shell 2 (5) is provided with a water spray pipe connecting through hole (51), a water spray pipe (14) is inserted into the water spray pipe connecting through hole (51), one end of the water spray pipe (14) is connected to a spray head (141), and the spray head (141) is arranged at the water inlet channel (1002) of the water spray plate (10).

5. The ring saw with a transmission and limiting device according to claim 1, characterized in that: The front and rear tension adjustment device (8) is composed of an adjustment seat main part (81) and an adjustment seat (82), wherein the adjustment seats (82) are arranged at both upper and lower ends of the adjustment seat main part (81), and a limit guide wheel (83) is arranged between the adjustment seat main part (81) and the adjustment seat (82), and the limit guide wheel (83) is arranged in front of the inner circle of the ring saw blade (6), and an adjustment groove (84) is arranged above the adjustment seat main part (81), and two adjustment positioning screws (85) are arranged in the adjustment groove (84), wherein an upper track (86) and a lower track (87) are arranged on one side of the adjustment seat main part (81), and are respectively plugged into the upper and lower rails of the head shell (5).

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