A cylindrical cam multi-stage transmission speed reduction device

Abstract

The present invention provides a cylindrical cam multi-stage transmission reduction device, which belongs to the technical field of cam reducer fixing. It includes a connected motor and a cam reducer, and a reduction transmission mechanism arranged in the cam reducer. The motor and the cam reducer are fixedly connected to a fixing frame at the bottom. The fixing frame is provided with at least two movably installed anchor rods to fix the fixing frame. One end of the anchor rod is fixedly connected to an anchor head, and a second slurry outlet hole is provided on the side wall around the anchor head. A detachable pad, a slurry stop plug and a fastening nut are installed on the other end of the anchor rod. The pad is located between the slurry stop plug and the fastening nut. A hollow cavity is provided in the anchor rod, and a plurality of first slurry outlet holes connected to the hollow cavity are provided on the side wall around the anchor rod. A reinforcement sealing mechanism is also included. The present invention sets a reinforcement sealing mechanism so that the motor and the cam reducer are fixed by grouting through the fixing frame, thereby grouting and blocking the water flow, avoiding the problems of water outflow affecting the subsequent fixing strength and safety hazards.

Description

Technical Field

[0001] The present invention relates to the technical field of cam speed reducer fixing, in particular to a cylindrical cam multi-stage transmission speed reducer. Background Art

[0002] The cylindrical cam buffer reducer, with its unique structure and excellent performance, performs well in coping with complex mining conditions. In harsh environments such as dust, humidity, high temperature or high altitude, it can effectively prevent foreign matter such as dust and water vapor from invading the interior with its good sealing performance, thereby ensuring the stable operation of the equipment.

[0003] Taking the high slope operations in open-pit mines as an example, when using large machinery such as drilling equipment and excavators, in order to ensure the stability of the equipment and prevent it from overturning or sliding, it is usually necessary to fix the reducer and motor to the rock wall or mountain. In open-pit coal mines, for those belt conveyors located at the end and need to be relocated regularly, a semi-fixed installation method can be adopted to firmly fix the reducer and motor to the rock wall or mountain. This can not only adapt to the special working environment of high slopes, but also ensure the stability of the equipment during operation; similarly, in underground mine excavation work, equipment such as drilling trolleys and template trolleys need to have a high degree of stability to complete precise operations. During the tunnel excavation process, the support legs of the drilling trolley are tightly against the rock wall, and its reducer and motor are installed on the trolley through special fixing devices, further ensuring the accuracy and stability of the drilling operation; the use of fixed rock walls can effectively reduce the problem of ground subsidence affecting the connection stability between the motor and the reducer.

[0004] However, in actual equipment fixing operations, water sometimes gushes from the rock wall, which not only affects the fixing effect of the equipment, but also, over time, the gushing water pushes the anchor bolts loose, causing equipment displacement and affecting normal mining operations. Therefore, a cylindrical cam multi-stage transmission speed reducer is proposed to solve this problem. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide a cylindrical cam multi-stage transmission speed reduction device to solve the existing problems.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A cylindrical cam multi-stage transmission reduction device comprises a connected motor and a cam reducer, and a reduction transmission mechanism arranged in the cam reducer, characterized in that the motor and the bottom of the cam reducer are jointly fixedly connected to a fixing frame, and at least two movably installed anchor rods are provided on the fixing frame to fix the fixing frame, one end of the anchor rod is fixedly connected to an anchor head, and a second slurry outlet hole is opened on the side wall of the anchor head, and a detachable pad, a slurry stop plug and a fastening nut are installed on the other end of the anchor rod, and the pad is located between the slurry stop plug and the fastening nut; a hollow cavity is opened in the anchor rod, and a plurality of first slurry outlet holes connected to the hollow cavity are opened on the side walls of the anchor rod, and a reinforcement sealing mechanism is also included, which comprises an inner rod and a claw. In the default state, the inner rod seals the plurality of first slurry outlet holes. When grouting is injected into the hollow cavity, the inner rod releases the blockage of the plurality of first slurry outlet holes and drives the claw to reinforce in the hole.

[0008] As a preferred solution of the cylindrical cam multi-stage transmission speed reduction device of the present invention, the reinforcement and sealing mechanism also includes an inner groove, a connecting groove and a slurry discharge hole opened in the anchor head, a pair of fixed rods are fixedly connected in the inner groove, and the first gear and the second gear are rotatably connected to the pair of fixed rods respectively, and the outer end of the second gear is fixedly connected to a claw; the end of the inner rod close to the anchor head is threadedly fitted with a hollow sleeve, and the end of the hollow sleeve away from the inner rod is fixedly connected to a fixed seat, and the peripheral side wall of the fixed seat is fixedly connected to a rack meshing with the first gear, the first gear and the second gear are meshed for transmission, and the end of the inner rod away from the first gear is fixedly connected to a pressure plate.

[0009] As a preferred solution of the cylindrical cam multi-stage transmission speed reduction device of the present invention, the reinforcement and blocking mechanism also includes an inner groove, a connecting groove and a slurry discharge hole opened in the anchor head, a pair of fixing rods are fixedly connected in the inner groove, and the first gear and the second gear are rotatably connected on the pair of fixing rods, and the outer end of the second gear is fixedly connected to a claw; an end of the inner rod close to the anchor head is threadedly fitted with a hollow sleeve, and an end of the hollow sleeve away from the inner rod is fixedly connected to a fixing seat, and a peripheral side wall of the fixing seat is fixedly connected to a rack meshing with the first gear, and the first gear and the second gear are meshed for transmission, and an end of the inner rod away from the first gear is fixedly connected to a pressure plate, through the two ends of the inner rod A pressure plate and a fixed seat, as well as a first gear, a second gear and a rack are provided at the end. When the anchor rod is located in the borehole, grouting is performed in the hollow cavity in the anchor rod through external grouting equipment. After the slurry enters the hollow cavity, it first squeezes the pressure plate, causing the inner rod to move inward. At the same time, the sealing member on the side wall of the inner rod no longer blocks the first slurry outlet hole, so that the slurry in the hollow cavity flows out through several first slurry outlet holes, thereby sealing the borehole. Several first slurry outlet holes discharge slurry at the same time, which is beneficial to rapid slurry discharge on the one hand, and can seal the gap connected to the side of the borehole on the other hand, thereby improving the sealing effect.

[0010] As a preferred solution of the cylindrical cam multi-stage transmission speed reduction device of the present invention, when the inner rod moves inward, the fixed seat fixed to it drives the rack to move, and the rack drives the second gear to rotate through the first gear, so that the claws at the outer end of the second gear are expanded, so that during grouting construction, the pressure of the grouting can drive the claws to expand, and then the anchor rod can be reinforced in the drilled hole.

[0011] As a preferred solution of the cylindrical cam multi-stage transmission speed reducer of the present invention, the inner groove, the connecting groove and the slurry discharge hole are connected, the connecting groove and the second slurry discharge hole and the hollow cavity are connected, the sizes of the hollow sleeve and the connecting groove are adapted, and the fixed seat slides in the inner groove through the hollow sleeve.

[0012] As a preferred solution of the cylindrical cam multi-stage transmission deceleration device of the present invention, the pressure plate is a cross structure, and a limiting block is fixedly connected in the hollow cavity. A limiting groove that is adapted to the size of the pressure plate is opened in the limiting block. In the default state, the pressure plate is located in the limiting groove. By setting the pressure plate to a cross structure and the limiting groove and the limiting groove of the cross structure to limit sliding, when the anchor rod moves in the drill hole, the pressure plate limits the anchor rod.

[0013] As a preferred solution of the cylindrical cam multi-stage transmission speed reducer of the present invention, wherein: a plurality of brackets are fixedly connected to the circumferential side wall of the inner rod, a plurality of brackets are fixedly connected to a sealing member at one end away from the inner rod, the sealing member is in contact with the inner wall of the first slurry outlet hole, and there are at least two brackets; due to the cooperation between the pressure plate and the inner rod, and the plurality of sealing members are all annular structures, and the plurality of sealing members are equidistantly arranged along the axis of the inner rod; the inner rod is located in the hollow cavity and moves, and the diameter of the inner rod is smaller than the diameter of the hollow cavity, the outer end of the anchor head is a conical structure, and the diameter of the claw in the default state is smaller than the diameter of the anchor head, and the claw in the default state is not unfolded, which does not affect the movement of the anchor rod in the drill hole.

[0014] As a preferred solution of the cylindrical cam multi-stage transmission speed reducer of the present invention, the claws, the first gear and the second gear are at least two groups, and are all distributed on the peripheral side wall of the anchor head.

[0015] Compared with the prior art, the present invention has at least the following beneficial effects:

[0016] In the above solution, by setting up a reinforcement sealing mechanism, the motor and cam reducer are fixed by grouting through the fixing frame, thereby grouting and blocking the water flow, avoiding problems such as water outflow affecting subsequent fixing strength and safety hazards.

[0017] When the anchor rod is placed in the borehole, the first slurry outlet hole on the anchor rod is in a closed state, thereby preventing the problem of water gushing out of the borehole and affecting the construction during construction; and, as the slurry is injected, the inner rod in the reinforcement and sealing mechanism can drive the claw to expand, thereby reinforcing the anchor rod, and at the same time the inner rod can also drive the sealing member to disengage the blockage of the first slurry outlet hole. The present invention utilizes the grouting pressure to drive the mechanism to work, which can not only reinforce the anchor rod in the borehole, but also release the blockage of the slurry outlet hole, thereby further facilitating the long-term stability of the motor and the cam reducer, and avoiding the problem of affecting the connection between the motor and the reducer due to ground subsidence.

[0018] By setting the pressure plate into a cross structure, and the limiting groove and the limiting groove of the cross structure limit sliding, when the anchor rod moves in the borehole, the pressure plate limits the anchor rod to prevent the inner rod from following the movement when the anchor rod moves in the borehole; by setting a second slurry hole and multiple first slurry holes on the side wall of the anchor rod, when the inner wall of the borehole and the crack are connected, grouting can be quickly injected into the borehole through the multiple slurry holes, thereby improving the sealing capacity.

[0019] In summary, the present invention has a built-in linkage-controllable sealing component in the anchor rod to seal the slurry outlet before grouting to prevent water from spraying out; during grouting, the slurry pressure is used to synchronously release the blockage and drive the anchor claw to expand, thereby achieving rapid sealing of water-conducting fissures and reinforcement of the anchor rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable one skilled in the art to make and use the invention.

[0021] Figure 1 It is a schematic diagram of the overall structure of the cylindrical cam multi-stage transmission speed reduction device;

[0022] Figure 2 Schematic diagram of the cross-sectional structure of the cylindrical cam multi-stage transmission reduction device

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the anchor rod in the cylindrical cam multi-stage transmission reduction device;

[0024] Figure 4 It is a schematic diagram of the three-dimensional structure of the screw rod in the cylindrical cam multi-stage transmission speed reduction device;

[0025] Figure 5 This is a schematic diagram of the cross-sectional structure of the anchor rod in the cylindrical cam multi-stage transmission speed reduction device;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the anchor head in the cylindrical cam multi-stage transmission speed reduction device;

[0027] Figure 7 It is a schematic diagram of the three-dimensional structure of the pressure plate in the cylindrical cam multi-stage transmission speed reduction device;

[0028] Figure 8 for Figure 5 The enlarged structural diagram at B in the middle;

[0029] Figure 9 for Figure 3 A in the middle is an enlarged structural diagram;

[0030] Figure 10 for Figure 5 The enlarged structural diagram at C in the middle;

[0031] Figure 11 for Figure 8 Enlarged structural diagram at point D in the middle.

[0032] Reference numerals:

[0033] 1. Anchor rod; 2. Fixing frame; 3. Anchor head; 4. Pad; 5. Slurry stop plug; 6. Fastening nut; 7. First slurry outlet hole; 8. Second slurry outlet hole; 9. Inner groove; 10. Connecting groove; 11. Slurry discharge hole; 12. Fixing rod; 13. First gear; 14. Second gear; 15. Claw; 16. Hollow sleeve; 17. Fixing seat; 18. Rack; 19. Inner rod; 20. Bracket; 21. Sealing piece; 22. Limit block; 23. Limit groove; 24. Pressure plate; 25. Hollow cavity; 26. Cam reducer; 27. Reduction transmission mechanism.

[0034] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0035] The following describes in detail a cylindrical cam multi-stage transmission reduction device provided by the present invention, with reference to the accompanying drawings and specific embodiments. It is also noted that, to provide a more detailed description, the following embodiments are optimal and preferred embodiments, and those skilled in the art may employ alternative implementations for known technologies. Furthermore, the accompanying drawings are intended only to provide a more detailed description of the embodiments and are not intended to limit the present invention.

[0036] It should be noted that references in the specification to "one embodiment," "an embodiment," "exemplary embodiments," "some embodiments," etc. indicate that the described embodiments may include specific features, structures, or characteristics, but not necessarily every embodiment will include such specific features, structures, or characteristics. Furthermore, when specific features, structures, or characteristics are described in conjunction with an embodiment, it is within the knowledge of persons skilled in the relevant art to implement such features, structures, or characteristics in conjunction with other embodiments (whether or not explicitly described).

[0037] In general, terms can be understood, at least in part, from their use in context. For example, depending at least in part on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending at least in part on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0038] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” means not only “directly on” something but also includes the meaning of being “on” something with intervening features or layers, and “on” or “above” means not only “on” or “above” something but also includes the meaning of being “on” or “above” something with no intervening features or layers.

[0039] Additionally, spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as illustrated in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein should be similarly interpreted accordingly.

[0040] like Figures 1 to 11As shown, an embodiment of the present invention provides a cylindrical cam multi-stage transmission reduction device, including a motor and a cam reducer 26 connected to each other, and a reduction transmission mechanism 27 arranged in the cam reducer, the motor and the cam reducer 26 are fixedly connected to a fixing frame 2 at the bottom. As is known, the above-mentioned cam reducer and motor are both prior art, and the fixing frame 2 is a bracket structure fixed on the cam reducer 26. Therefore, the specific internal structure of the cam reducer and the motor will not be described in detail later; at least two movably mounted anchor rods 1 are provided on the fixing frame 2 to fix the fixing frame 2, and one end of the anchor rod 1 is fixedly connected to an anchor rod. Head 3, a second slurry outlet hole 8 is opened on the side wall around the anchor head 3, and a detachable pad 4, a slurry stop plug 5 and a fastening nut 6 are installed on the other end of the anchor rod 1, and the pad 4 is located between the slurry stop plug 5 and the fastening nut 6; a hollow cavity 25 is opened in the anchor rod 1, and a plurality of first slurry outlet holes 7 connected with the hollow cavity 25 are opened on the side wall around the anchor rod 1, and also includes a reinforcement and sealing mechanism, the reinforcement and sealing mechanism includes an inner rod 19 and a claw 15. In the default state, the inner rod 19 seals the plurality of first slurry outlet holes 7. When grouting is injected into the hollow cavity 25, the inner rod 19 releases the blockage of the plurality of first slurry outlet holes 7, and at the same time drives the claw 15 to reinforce the hole.

[0041] The reinforcement and blocking mechanism also includes an inner groove 9, a connecting groove 10 and a slurry discharge hole 11 provided in the anchor head 3. A pair of fixed rods 12 are fixedly connected in the inner groove 9. A first gear 13 and a second gear 14 are rotatably connected to the pair of fixed rods 12, and a claw 15 is fixedly connected to the outer end of the second gear 14; an end of the inner rod 19 close to the anchor head 3 is threadedly matched with a hollow sleeve 16, and an end of the hollow sleeve 16 away from the inner rod 19 is fixedly connected to a fixing seat 17, and a rack 18 meshing with the first gear 13 is fixedly connected to the side wall of the fixing seat 17. The first gear 13 and the second gear 14 are meshed for transmission, and an end of the inner rod 19 away from the first gear 13 is fixedly connected to a pressure plate 24; by setting a reinforcement anti-blocking mechanism, the motor and the cam reducer 26 are fixed by grouting through the fixing frame 2, thereby blocking the water flow grouting and avoiding To prevent water from gushing out and affecting the subsequent fixing strength and safety hazards; by arranging pressure plates 24 and fixing seats 17, as well as first gears 13, second gears 14 and racks 18 at both ends of the inner rod 19, when the anchor rod 1 is located in the borehole, the hollow cavity 25 in the anchor rod 1 is grouting by external grouting equipment. After the slurry enters the hollow cavity 25, it first squeezes the pressure plate 24, causing the inner rod 19 to move inward. At the same time, the sealing member 21 on the side wall of the inner rod 19 no longer blocks the first slurry outlet hole 7, so that the slurry in the hollow cavity 25 flows out through several first slurry outlet holes 7, thereby sealing the borehole, and several first slurry outlet holes 7 slurry out at the same time, which is conducive to rapid slurry discharge on the one hand, and can seal the gap connected to the side of the borehole on the other hand, thereby improving the sealing effect.

[0042] In addition, when the inner rod 19 moves inward, the fixed seat 17 fixed to it drives the rack 18 to move, and the rack 18 drives the second gear 14 to rotate through the first gear 13, so that the claw 15 at the outer end of the second gear 14 is expanded. Therefore, during grouting construction, the pressure of the grouting can drive the claw 15 to expand, thereby reinforcing the anchor rod 1 in the drill hole and preventing the anchor rod 1 from shifting in the drill hole and affecting the overall construction.

[0043] The inner groove 9, the connecting groove 10 and the pulp discharge hole 11 are in a connected state, the connecting groove 10, the second pulp discharge hole 8 and the hollow cavity 25 are in a connected state, the hollow sleeve 16 and the connecting groove 10 are adapted in size, and the fixed seat 17 slides in a limited position in the inner groove 9 through the hollow sleeve 16.

[0044] The pressure plate 24 is a cross structure, and a limiting block 22 is fixedly connected to the hollow cavity 25. A limiting groove 23 that is adapted to the size of the pressure plate 24 is provided in the limiting block 22. In the default state, the pressure plate 24 is located in the limiting groove 23. By setting the pressure plate 24 to a cross structure, and the limiting groove 23 and the limiting groove 23 of the cross structure to limit sliding, when the anchor rod 1 moves in the drill hole, the pressure plate 24 limits the anchor rod 1 to prevent the anchor rod 1 from moving in the drill hole, causing the inner rod 19 to follow the movement.

[0045] Several brackets 20 are fixedly connected to the side walls of the inner rod 19, and one end of the brackets 20 away from the inner rod 19 is fixedly connected to a sealing member 21, the sealing member 21 is in contact with the inner wall of the first slurry outlet 7, and there are at least two brackets 20; due to the cooperation between the pressure plate 24 and the inner rod 19, and the several sealing members 21 are all annular structures, and the several sealing members 21 are equidistantly arranged along the axis of the inner rod 19, in the default state, the sealing member 21 blocks the first slurry outlet 7, so that during construction, if water flows out of the borehole, the sealing member 21 blocks the first slurry outlet 7, thereby greatly reducing the problem that the water flows into the hollow cavity 25 and then sprays outwards, thereby affecting the construction of the operator; when the inner rod 19 is moved inward by the grouting pressure, the first slurry outlet 7 is separated from the blockage of the sealing member 21, so that the grouting sealing operation can be carried out.

[0046] There are at least two groups of claws 15, first gears 13 and second gears 14, and they are all distributed on the side walls of the anchor head 3.

[0047] The inner rod 19 is located in the hollow cavity 25 and moves. The diameter of the inner rod 19 is smaller than the diameter of the hollow cavity 25. The outer end of the anchor head 3 is a conical structure, and the diameter of the claw 15 in the default state is smaller than the diameter of the anchor head 3. The claw 15 in the default state is not unfolded and does not affect the movement of the anchor rod 1 in the drill hole.

[0048] Working principle: During operation, after drilling a hole in a rock wall or other location, the motor and cam reducer 26 are placed on the ground through the fixing frame 2, and then the fixing frame 2 is fixed to the rock wall through the anchor rod 1.

[0049] Since the sealing member 21 in the default state blocks the first slurry outlet 7, when water flows through the side wall of the borehole and the crack during construction, the sealing member 21 blocks the first slurry outlet 7, thereby greatly reducing the water flow from entering the hollow cavity 25 and spraying outward.

[0050] Next, grouting is performed in the hollow cavity 25 in the anchor rod 1 through external grouting equipment. After the slurry enters the hollow cavity 25, it first squeezes the pressure plate 24, causing the inner rod 19 to move inward. At the same time, the sealing member 21 on the side wall of the inner rod 19 no longer blocks the first slurry outlet hole 7, so that the slurry in the hollow cavity 25 flows out through several first slurry outlet holes 7, thereby sealing the borehole. Moreover, several first slurry outlet holes 7 discharge slurry at the same time, which is conducive to rapid grouting in the cracks connected to the borehole, thereby improving the fixing strength and quickly blocking the water guide channel to more stably install the motor and cam reducer 26.

[0051] The present invention encompasses any alternatives, modifications, equivalents, and solutions that fall within the spirit and scope of the present invention. To provide a thorough understanding of the present invention, specific details are described in detail below in connection with the preferred embodiments of the present invention, but those skilled in the art will be able to fully understand the present invention without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of the present invention, well-known methods, processes, procedures, components, and circuits have not been described in detail.

[0052] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A cylindrical cam multi-stage transmission speed reduction device, comprising a motor and a cam speed reducer (26) connected to each other, and a speed reduction transmission mechanism (27) arranged in the cam speed reducer, characterized in that: The motor and the bottom of the cam reducer are fixedly connected to a fixing frame (2), and at least two movably installed anchor rods (1) are provided on the fixing frame (2) to fix the fixing frame (2), one end of the anchor rod (1) is fixedly connected to an anchor head (3), and a second slurry outlet hole (8) is opened on the side wall of the anchor head (3), and a detachable pad (4), a slurry stop plug (5) and a fastening nut (6) are installed on the other end of the anchor rod (1), and the pad (4) is located between the slurry stop plug (5) and the fastening nut (6); The anchor rod (1) is provided with a hollow cavity (25), and a plurality of first slurry outlet holes (7) in communication with the hollow cavity (25) are provided on the peripheral side wall of the anchor rod (1). The anchor rod (1) also includes a reinforcement and blocking mechanism, wherein the reinforcement and blocking mechanism includes an inner rod (19) and a clamping claw (15). In a default state, the inner rod (19) blocks the plurality of first slurry outlet holes (7). When grouting is injected into the hollow cavity (25), the inner rod (19) releases the blocking of the plurality of first slurry outlet holes (7) and simultaneously drives the clamping claw (15) to reinforce the hole. The reinforcement and plugging mechanism further comprises an inner groove (9), a connecting groove (10) and a slurry discharge hole (11) provided in the anchor head (3); a pair of fixing rods (12) are fixedly connected in the inner groove (9); a first gear (13) and a second gear (14) are rotatably connected to the pair of fixing rods (12), and a claw (15) is fixedly connected to the outer end of the second gear (14); The end of the inner rod (19) close to the anchor head (3) is threadedly fitted with a hollow sleeve (16), the end of the hollow sleeve (16) away from the inner rod (19) is fixedly connected to a fixing seat (17), the peripheral side wall of the fixing seat (17) is fixedly connected to a rack (18) meshing with the first gear (13), the first gear (13) and the second gear (14) are meshed for transmission, and the end of the inner rod (19) away from the first gear (13) is fixedly connected to a pressure plate (24); The inner groove (9), the connecting groove (10) and the pulp discharge hole (11) are in a communicating state, the connecting groove (10), the second pulp discharge hole (8) and the hollow cavity (25) are in a communicating state, the hollow sleeve (16) and the connecting groove (10) are adapted in size, and the fixing seat (17) is limitedly slidable in the inner groove (9) through the hollow sleeve (16).

2. The cylindrical cam multi-stage transmission speed reducer according to claim 1, characterized in that: A plurality of brackets (20) are fixedly connected to the side wall of the inner rod (19); one end of the plurality of brackets (20) away from the inner rod (19) is fixedly connected to a blocking member (21); the blocking member (21) contacts the inner wall of the first pulp outlet hole (7); and there are at least two brackets (20).

3. The cylindrical cam multi-stage transmission speed reducer according to claim 2, characterized in that: The plurality of blocking members (21) are all annular structures, and the plurality of blocking members (21) are arranged at equal distances along the axis of the inner rod (19).

4. The cylindrical cam multi-stage transmission speed reducer according to claim 3, characterized in that: The pressure plate (24) is a cross structure, and a limiting block (22) is fixedly connected to the hollow cavity (25). A limiting groove (23) adapted to the size of the pressure plate (24) is provided in the limiting block (22). In a default state, the pressure plate (24) is located in the limiting groove (23).

5. The cylindrical cam multi-stage transmission speed reducer according to claim 2, characterized in that: The claws (15), the first gear (13), and the second gear (14) are at least two groups, and are all distributed on the peripheral side wall of the anchor head (3).

6. The cylindrical cam multi-stage transmission speed reducer according to claim 2, characterized in that: The inner rod (19) is located in the hollow cavity (25) and moves therein, and the diameter of the inner rod (19) is smaller than the diameter of the hollow cavity (25).

7. The cylindrical cam multi-stage transmission speed reducer according to claim 6, characterized in that: The outer end of the anchor head (3) is a conical structure, and the diameter of the claw (15) in a default state is smaller than the diameter of the anchor head (3).

Images