Novel helical blade stretching mechanism

Abstract

The utility model relates to the field of stretching mechanisms, and discloses a novel helical blade stretching mechanism which comprises a connecting rod, a left rack and a right rack, the left rack is arranged at one end of the connecting rod, the right rack is arranged at the other end of the connecting rod, one side of the top end of the connecting rod is fixedly connected with the bottom end of the left rack, and the other side of the top end of the connecting rod is fixedly connected with the bottom end of the right rack. The top end of the left rack is fixedly connected with a blade head end connecting base, the other side of the blade head end connecting base is fixedly connected with a spiral blade shaft, the side wall of the spiral blade shaft is fixedly connected with a spiral blade, and the other end of the spiral blade shaft is fixedly connected with a blade tail end connecting base. The other end of the blade tail end connecting base is movably connected with a universal joint, and the position, close to the lower portion, of one side of the right rack is fixedly connected with the other end of the connecting rod. According to the novel helical blade stretching mechanism, the connecting base is arranged on the machine frame, the helical blade is stretched, and meanwhile the rocker is used for stretching the helical blade to the specified screw pitch.

Description

Technical Field

[0001] The utility model relates to the field of stretching mechanisms, in particular to a novel spiral blade stretching mechanism. Background Art

[0002] Screw conveyor is the main equipment for conveying powdered materials. The finished spiral blades in the screw conveyor are obtained by processing spiral blade blanks. The main processing methods currently include single-piece manual hot pressing forming method, mold hot pressing forming method, mold cold pressing forming method, cold drawing forming method, etc. The spiral blade blank is generally an open circular ring sheet. The cold drawing forming method is to bolt the open end of the single-piece spiral blade blank to the fixed rod and the pull rod on the stretching machine respectively, and then apply external force to the pull rod to stretch the spiral blade blank so that the spiral blade blank is pulled to the specified pitch and the stretching operation is stopped.

[0003] Although the prior art stretches the spiral blades to a specified pitch through a stretching mechanism, spiral blades of different specifications require mechanisms of different sizes for stretching, which increases production costs and reduces production efficiency. Therefore, those skilled in the art provide a new spiral blade stretching mechanism to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a new type of spiral blade stretching mechanism, which provides a new type of spiral blade stretching mechanism that stretches the spiral blade by arranging a connecting seat on a frame and stretches the spiral blade to a specified pitch by using a rocker.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel spiral blade stretching mechanism, comprising a connecting rod, a left frame and a right frame, wherein the left frame is arranged at one end of the connecting rod, the right frame is arranged at the other end of the connecting rod, one side of the top end of the connecting rod is fixedly connected to the bottom end of the left frame, the top end of the left frame is fixedly connected to a blade head end connecting seat, the other side of the blade head end connecting seat is fixedly connected to a spiral blade shaft, the side wall of the spiral blade shaft is fixedly connected to a spiral blade, the other end of the spiral blade shaft is fixedly connected to a blade end connecting seat, the other end of the blade end connecting seat is movably connected to a universal joint, and one side of the right frame is fixedly connected to the other end of the connecting rod at a lower position;

[0006] Through the above technical solution, by respectively arranging the blade head end connecting seat and the blade tail end connecting seat on the frame, the mechanism can stretch spiral blades of various specifications, which is suitable for the work of stretching spiral blades of different small batches.

[0007] Furthermore, a rocker is rotatably connected to the upper position of the front end of the right frame, a rotating shaft is rotatably connected to the upper position of the inner side wall of the right frame, and a steel wire rope is fixedly connected to the side wall of the rotating shaft;

[0008] Through the above technical solution, by installing the spiral blade behind the device and turning the rocker, the wire rope gradually contracts until the spiral blade is stretched to the specified pitch. This mechanism stretches the welded spiral blade as a whole, with high production efficiency and low production cost.

[0009] Furthermore, one end of the rotating shaft passes through the inner wall of the right frame and is fixedly connected to one end of the rocker;

[0010] Through the above technical solution, the contraction of the wire rope can be effectively controlled.

[0011] Furthermore, one end of the steel wire rope is fixedly connected to the side wall of the rotating shaft, and the other end of the steel wire rope is rotatably connected to the other end of the universal joint;

[0012] Through the above technical solution, the spiral blades can be effectively stretched to a suitable pitch.

[0013] Furthermore, a fixing block is fixedly connected to the upper side wall of the blade head end connection seat and the lower side wall of the blade tail end connection seat respectively;

[0014] The above technical solution makes it easy to fix and install the spiral blade shaft.

[0015] Furthermore, the left frame and the right frame are both made of hollow steel pipes;

[0016] Through the above technical solution, the overall mechanism has a simple structure, which is convenient for the staff to inspect and maintain the entire device in the later stage, effectively simplifies the complexity of use for the staff, and enables the user to operate more conveniently.

[0017] Furthermore, a reinforcing plate is fixedly connected to the lower position of the other side of the left frame and the lower position of one side of the right frame;

[0018] Through the above technical solution, the overall structural strength of the device is effectively improved.

[0019] Furthermore, one end of the connecting rod is fixedly connected to a cross bar at a lower position on the other side of the right frame;

[0020] Through the above technical solution, the stability of the entire device when placed is effectively improved.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the utility model, by respectively arranging a blade head end connection seat and a blade tail end connection seat on the frame, the mechanism can stretch spiral blades of various specifications, and is suitable for the work of stretching spiral blades of different small batches.

[0023] 2. In the utility model, by installing the spiral blade behind the device and rotating the rocker, the wire rope gradually contracts until the spiral blade is stretched to a specified pitch. This mechanism stretches the welded spiral blade as a whole, with high production efficiency and low production cost.

[0024] 3. In the utility model, the overall mechanism has a simple structure, which is convenient for the staff to inspect and maintain the entire device in the later stage, effectively simplifying the complexity of use by the staff and allowing the user to operate more conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of a novel spiral blade stretching mechanism proposed in the utility model;

[0026] Figure 2 A three-dimensional diagram of a spiral blade shaft of a novel spiral blade stretching mechanism proposed in the utility model;

[0027] Figure 3 A three-dimensional diagram of a frame of a novel spiral blade stretching mechanism proposed in the utility model;

[0028] Figure 4 for Figure 1 Enlarged view of point A in the middle.

[0029] Legend:

[0030] 1. Left frame; 2. Blade head end connection seat; 3. Spiral blade; 4. Spiral blade shaft; 5. Blade end connection seat; 6. Fixed block; 7. Universal joint; 8. Wire rope; 9. Rocker; 10. Right frame; 11. Rotating shaft; 12. Connecting rod. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Reference Figure 1-4The utility model provides an embodiment: a novel spiral blade stretching mechanism, including a connecting rod 12, a left frame 1 and a right frame 10, the left frame 1 is arranged at one end of the connecting rod 12, and the right frame 10 is arranged at the other end of the connecting rod 12, one side of the top of the connecting rod 12 is fixedly connected to the bottom end of the left frame 1, the top of the left frame 1 is fixedly connected with a blade head end connecting seat 2, the other side of the blade head end connecting seat 2 is fixedly connected with a spiral blade shaft 4, the side wall of the spiral blade shaft 4 is fixedly connected with a spiral blade 3, the other end of the spiral blade shaft 4 is fixedly connected with a blade end connecting seat 5, the other end of the blade end connecting seat 5 is movably connected with a universal joint 7, one side of the right frame 10 is fixedly connected to the other end of the connecting rod 12 at a lower position, by respectively arranging the blade head end connecting seat 2 and the blade end connecting seat 5 on the frames, the mechanism can stretch spiral blades 3 of various specifications, and is suitable for stretching spiral blades 3 of different small batches.

[0033] A rocker 9 is rotatably connected to the upper front end of the right frame 10, a rotating shaft 11 is rotatably connected to the upper inner wall of the right frame 10, and a wire rope 8 is fixedly connected to the side wall of the rotating shaft 11. By installing the spiral blade 3 behind the device and rotating the rocker 9, the wire rope 8 gradually contracts until the spiral blade 3 is stretched to a specified pitch. This mechanism stretches the welded spiral blade 3 as a whole, and has high production efficiency and low production cost.

[0034] One end of the rotating shaft 11 passes through the inner wall of the right frame 10 and is fixedly connected to one end of the rocker 9, one end of the wire rope 8 is fixedly connected to the side wall of the rotating shaft 11, and the other end of the wire rope 8 is rotatably connected to the other end of the universal joint 7. The upper position of the side wall of the blade head end connecting seat 2 and the lower position of the side wall of the blade end connecting seat 5 are respectively fixedly connected with a fixing block 6. The left frame 1 and the right frame 10 are both made of hollow steel pipes, and the lower position of the other side of the left frame 1 and the lower position of one side of the right frame 10 are fixedly connected with a reinforcing plate, and one end of the connecting rod 12 is fixedly connected with a cross bar at the lower position of the other side of the right frame 10. The overall mechanism has a simple structure, which is convenient for the staff to overhaul and maintain the device as a whole in the later stage, effectively simplifies the complexity of the staff when using it, and enables the user to operate it more conveniently.

[0035] Working principle: By respectively arranging a blade head end connecting seat 2 and a blade tail end connecting seat 5 on the frame, the mechanism can stretch spiral blades 3 of various specifications, and is suitable for stretching spiral blades 3 of different small batches. By installing the spiral blade 3 behind the device, turning the rocker 9, the wire rope 8 gradually shrinks until the spiral blade 3 is stretched to the specified pitch. The mechanism stretches the welded spiral blade 3 as a whole, with high production efficiency and low production cost. The overall mechanism has a simple structure, which is convenient for the staff to overhaul and maintain the entire device in the later stage, effectively simplifying the complexity of the staff in use, so that the user can operate it more conveniently.

[0036] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A novel spiral blade stretching mechanism, comprising a connecting rod (12), a left frame (1) and a right frame (10), wherein the left frame (1) is arranged at one end of the connecting rod (12), and the right frame (10) is arranged at the other end of the connecting rod (12), characterized in that: One side of the top end of the connecting rod (12) is fixedly connected to the bottom end of the left frame (1); the top end of the left frame (1) is fixedly connected to a blade head end connecting seat (2); the other side of the blade head end connecting seat (2) is fixedly connected to a spiral blade shaft (4); the side wall of the spiral blade shaft (4) is fixedly connected to a spiral blade (3); the other end of the spiral blade shaft (4) is fixedly connected to a blade end connecting seat (5); the other end of the blade end connecting seat (5) is movably connected to a universal joint (7); one side of the right frame (10) is fixedly connected to the other end of the connecting rod (12) at a lower position.

2. A novel spiral blade stretching mechanism according to claim 1, characterized in that: The front end of the right frame (10) is rotatably connected to a rocker (9) at an upper position, the inner side wall of the right frame (10) is rotatably connected to a rotating shaft (11) at an upper position, and the side wall of the rotating shaft (11) is fixedly connected to a steel wire rope (8).

3. A novel spiral blade stretching mechanism according to claim 2, characterized in that: One end of the rotating shaft (11) passes through the inner wall of the right frame (10) and is fixedly connected to one end of the rocker (9).

4. A novel spiral blade stretching mechanism according to claim 2, characterized in that: One end of the steel wire rope (8) is fixedly connected to the side wall of the rotating shaft (11), and the other end of the steel wire rope (8) is rotatably connected to the other end of the universal joint (7).

5. A novel spiral blade stretching mechanism according to claim 1, characterized in that: A fixing block (6) is fixedly connected to the upper side wall of the blade head end connection seat (2) and the lower side wall of the blade tail end connection seat (5), respectively.

6. A novel spiral blade stretching mechanism according to claim 1, characterized in that: The left frame (1) and the right frame (10) are both made of hollow steel pipes.

7. A novel spiral blade stretching mechanism according to claim 1, characterized in that: A reinforcing plate is fixedly connected to a lower position on the other side of the left frame (1) and a lower position on one side of the right frame (10).

8. The novel spiral blade stretching mechanism according to claim 1 is characterized in that: One end of the connecting rod (12) is fixedly connected to a crossbar at a lower position of the other side of the right frame (10).

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