Scraper speed reducer

Abstract

The utility model relates to the technical field of speed reducers, in particular to a scraper speed reducer which is characterized in that the scraper speed reducer comprises a shell, a moving rod, a driving piece, a worm wheel and a worm are arranged in the shell, one end of the worm is connected with a motor, and the shell is provided with an outer shell at the end where the worm extends out; an eccentric part is arranged on one side of the driving piece, the turbine and the driving piece are concentric and rotate synchronously, and the center of the eccentric part and the center of the turbine are not located on the same straight line; one end of the moving rod is connected with the scraper, two protruding parts are arranged on the moving rod, the eccentric part is located between the two protruding parts, the motor drives the worm to rotate and drives the turbine to rotate so as to drive the driving piece to rotate, and then the eccentric part drives the moving rod to move up and down. The moving rod, the driving piece, the worm gear and the worm are placed in one cavity, so that the overall space is reduced, the worm extends out to be connected, namely, the motor and the worm are externally connected, the connection condition can be seen, and protection is achieved through the shell.

Description

Technical Field

[0001] The utility model relates to the technical field of speed reducers, in particular to a scraper speed reducer. Background Art

[0002] A reducer is an independent component consisting of a gear transmission, worm transmission, or gear-worm transmission enclosed in a rigid housing. It is often used as a reduction transmission device between the prime mover and the working machine, and plays the role of matching speed and transmitting torque between the prime mover and the working machine or actuator.

[0003] When the working machine is a scraper, the reducer includes a movable rod connected to the scraper, and the movable rod moves under the drive of a turbine with an eccentric component. However, the existing structure gives the turbine worm a separate space, that is, there are two chambers in the reducer housing, thereby increasing the overall space. Secondly, the connection between the worm and the prime mover, that is, the motor, is to extend the driving rod of the motor into the interior for connection. Therefore, it is impossible to see from the outside whether the connection is properly connected, so there is a possibility of incorrect connection. Summary of the Invention

[0004] The purpose of the utility model is to provide a scraper reducer, which reduces the overall space by placing the moving rod, driving member, turbine and worm in a chamber. Secondly, the worm is extended for connection, that is, the connection between the motor and the worm is external, so the connection can be seen and is protected by the outer shell, thereby solving the problem that the existing turbine worm has a separate chamber and the connection between the worm and the motor is built-in.

[0005] The purpose of this utility model is achieved in this way:

[0006] A scraper reducer, characterized in that it includes a housing, a chamber is formed in the housing, and a moving rod, a driving member, and a turbine and a worm that mesh with each other are arranged in the chamber, one end of the worm protrudes from the housing and is used to connect to the motor, and the housing is provided with an outer shell at the end where the worm protrudes, and the outer shell has a hole for the connection between the worm and the motor;

[0007] The driving member is provided on one side of the turbine, and an eccentric portion is provided on the side of the driving member away from the turbine, and the turbine and the driving member are concentric and rotate synchronously, and the center of the eccentric portion is not on the same straight line as the center of the turbine;

[0008] One end of the moving rod extends out of the shell and is used to connect with the scraper. Two protrusions are provided on the moving rod, and the eccentric part is located between the two protrusions. The worm is driven by the motor to rotate and drive the turbine to rotate, thereby driving the driving member to rotate, and then the eccentric part drives the moving rod to move up and down.

[0009] Preferably, a connecting portion is provided at one end of the shell, and the shell is provided with a hole for the connecting portion to pass through, and the shell and the shell are connected by fasteners;

[0010] A convex plate is provided on the outer side of the other end of the shell, and the convex plate is used to be connected to the motor.

[0011] Preferably, a cover is provided on one side of the shell, and a connecting shaft is passed through the cover, and a turbine is sleeved on the outside of the connecting shaft, and a bearing is provided between the connecting shaft and the turbine, and fasteners are used to connect the shell and the cover and the turbine and the driving member.

[0012] Preferably, mounting hole one and mounting hole two are provided on both sides of the shell, and the two ends of the worm are respectively located in mounting hole one and mounting hole two, and bearing two are provided between the worm and mounting hole one and between the worm and mounting hole two, and a sealing cover one is provided in mounting hole one.

[0013] Preferably, a mounting seat is provided on the top of the shell, and one end of the moving rod passes through the mounting seat and is used to connect with the scraper, and a shaft sleeve, an oil seal and a cover plate are sequentially provided between the mounting seat and the moving rod.

[0014] Preferably, a connecting hole is provided at the bottom of the shell, and one end of the moving rod is located in the connecting hole, and a second shaft sleeve is provided between the moving rod and the connecting hole, and a second sealing cover is provided in the connecting hole.

[0015] Compared with the prior art, the present invention has the following outstanding and beneficial technical effects:

[0016] The utility model reduces the overall space by placing the moving rod, the driving member, the turbine and the worm in one chamber. Secondly, the worm is extended for connection, that is, the connection between the motor and the worm is external, so that the connection can be seen and is protected by the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the schematic cross-sectional views of the present invention.

[0018] Figure 2 for Figure 1 Schematic diagram of the structure with the A part in the middle enlarged.

[0019] Figure 3 This is the second schematic cross-sectional view of the utility model.

[0020] Figure 4 for Figure 3 Schematic diagram of the structure with the B part enlarged.

[0021] Reference numerals: 1-housing; 11-chamber; 12-mounting hole 1; 13-sealing cover 1; 14-shaft sleeve 2;

[0022] 15-Second sealing cover; 16-Connecting hole; 2-Moving rod; 21-Protrusion; 3-Drive member; 31-Eccentric portion;

[0023] 4-turbine; 5-worm; 6-housing; 61-connecting portion; 62-convex plate; 63-hole; 64-oil seal 2;

[0024] 7-cover; 8-connecting shaft; 9-mounting seat; 91-sleeve 1; 92-oil seal 1; 93-cover plate;

[0025] 10-bearing one; 20-bearing two. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is further described in detail below with reference to the accompanying drawings.

[0027] like Figure 1-Figure 4 As shown, a scraper reducer includes a housing 1, wherein a chamber 11 is defined within the housing 1. A moving rod 2, a driving member 3, and a meshing turbine 4 and worm 5 are disposed within the chamber 11. Therefore, in actual use, the moving rod 2, driving member 3, turbine 4, and worm 5 are all placed within the chamber 11, thereby reducing the overall space.

[0028] Secondly, one end of the worm 5 extends out of the housing 1 and is connected to the motor. The housing 1 is provided with a housing 6 at the end where the worm 5 extends. The housing 6 has a hole 63 for the connection between the worm 5 and the motor. Therefore, during actual use, the worm 5 is extended and connected, meaning the connection between the motor and worm 5 is external, allowing visibility and protection through the housing 6. Furthermore, the provision of the hole 63 allows for preliminary inspection without removing the housing 6.

[0029] The movable rod 2 has a movable structure as follows: a driving member 3 is disposed on one side of the turbine 4, and an eccentric portion 31 is provided on the side of the driving member 3 away from the turbine 4. The turbine 4 and the driving member 3 are concentric and rotate synchronously, and the center of the eccentric portion 31 is not aligned with the center of the turbine 4. Furthermore, one end of the movable rod 2 extends out of the housing 1 and is used to connect to the scraper. The movable rod 2 is provided with two protrusions 21, and the eccentric portion 31 is located between the two protrusions 21.

[0030] Therefore, in actual use, the motor drives the worm 5 to rotate and drives the turbine 4 to rotate, thereby driving the driving member 3 to rotate, and then the eccentric portion 31 drives the moving rod 2 to move up and down.

[0031] like Figure 2As shown, the structure of the housing 6 is as follows: first, a connecting portion 61 is provided at one end of the housing 6, and a hole is opened in the housing 1 for the connecting portion 61 to pass through, and the housing 6 and the housing 1 are connected by fasteners. The fasteners are screws, and a protruding plate 62 is provided on the outside of the other end of the housing 6. The protruding plate 62 is used to connect to the motor, and the connection between the protruding plate 62 and the motor is also screwed.

[0032] like Figure 3-Figure 4 As shown, the structure of turbine 4 is as follows: first, a cover 7 is provided on one side of housing 1, and a connecting shaft 8 is passed through cover 7. Turbine 4 is sleeved on the outer side of connecting shaft 8, and a bearing 10 is provided between connecting shaft 8 and turbine 4. Fasteners are used to connect housing 1 and cover 7, and between turbine 4 and driving member 3. The fasteners are screws, and bearing 10 is used to isolate connecting shaft 8 from turbine 4 and prevent connecting shaft 8 from being driven by turbine 4 and rotating.

[0033] like Figure 1-Figure 2 As shown, the structure related to the worm 5 is as follows: first, a mounting hole 12 and a mounting hole 2 are opened on both sides of the shell 1, and the two ends of the worm 5 are respectively located in the mounting hole 12 and the mounting hole 2, and a bearing 20 is provided between the worm 5 and the mounting hole 12 and between the worm 5 and the mounting hole 2, and a sealing cover 13 is provided in the mounting hole 12.

[0034] Corresponding to the structure of the upper housing 6 , the connecting portion 61 is located in the second mounting hole, and the connecting portion 61 has an opening for the worm 5 to pass through, and a second oil seal 64 is provided between the connecting portion 61 and the worm 5 .

[0035] The sealing cover 13 and the oil seal 2 64 both play a sealing role, thereby preventing the lubricating oil from leaking.

[0036] like Figure 1 and Figure 3 As shown, the structure related to the moving rod 2 is: first, a mounting seat 9 is provided on the top of the shell 1, and one end of the moving rod 2 passes through the mounting seat 9 and is used to connect with the scraper, and a shaft sleeve 91, an oil seal 92 and a cover plate 93 are provided between the mounting seat 9 and the moving rod 2 in sequence.

[0037] A connecting hole 16 is formed at the bottom of the housing 1 , and one end of the moving rod 2 is located in the connecting hole 16 . A second shaft sleeve 14 is provided between the moving rod 2 and the connecting hole 16 , and a second sealing cover 15 is provided in the connecting hole 16 .

[0038] The shaft sleeve is used to avoid wear and to guide and limit, and the sealing cover 15 plays a sealing role to prevent the lubricating oil from leaking.

[0039] The above shows and describes the basic principles and main features of the present invention as well as the advantages of the present invention. At the same time, the present invention is not limited to the above embodiments. Therefore, various changes and improvements are possible without departing from the principles and scope of the present invention. Such changes and improvements fall within the scope of the present invention.

Claims

1. A scraper reducer, characterized in that: The invention comprises a housing (1), wherein a chamber (11) is provided in the housing (1), and a moving rod (2), a driving member (3), and a mutually meshing turbine (4) and a worm (5) are provided in the chamber (11), wherein one end of the worm (5) extends out of the housing (1) and is used to be connected to a motor, and the housing (1) is provided with a shell (6) at the end where the worm (5) extends out, and the shell (6) is provided with a hole (63) at the connection between the worm (5) and the motor; The driving member (3) is arranged on one side of the turbine (4), and the driving member (3) is provided with an eccentric portion (31) on a side away from the turbine (4), and the turbine (4) and the driving member (3) are concentric and rotate synchronously, and the center of the eccentric portion (31) and the center of the turbine (4) are not on the same straight line; One end of the moving rod (2) extends out of the housing (1) and is used to connect with the scraper. The moving rod (2) is provided with two protrusions (21), and the eccentric portion (31) is located between the two protrusions (21). The worm (5) is driven by a motor to rotate and drive the turbine (4) to rotate, thereby driving the driving member (3) to rotate, and then the eccentric portion (31) drives the moving rod (2) to move up and down.

2. The scraper reducer according to claim 1, characterized in that: A connecting portion (61) is provided at one end of the shell (6), and a hole is opened in the shell (1) for the connecting portion (61) to pass through, and the shell (6) and the shell (1) are connected by fasteners; A convex plate (62) is provided on the outer side of the other end of the housing (6), and the convex plate (62) is used for connecting to the motor.

3. A scraper reducer according to claim 1 or 2, characterized in that: A cover (7) is provided on one side of the housing (1), and a connecting shaft (8) is passed through the cover (7), a turbine (4) is sleeved on the outer side of the connecting shaft (8), and a bearing (10) is provided between the connecting shaft (8) and the turbine (4), and the housing (1) and the cover (7) and the turbine (4) and the driving member (3) are all connected by fasteners.

4. A scraper reducer according to claim 1 or 2, characterized in that: The housing (1) is provided with a first mounting hole (12) and a second mounting hole on both sides, and the two ends of the worm (5) are respectively located in the first mounting hole (12) and the second mounting hole, and a second bearing (20) is provided between the worm (5) and the first mounting hole (12) and between the worm (5) and the second mounting hole, and a sealing cover (13) is provided in the first mounting hole (12).

5. A scraper reducer according to claim 1 or 2, characterized in that: A mounting seat (9) is provided on the top of the housing (1), and one end of the moving rod (2) passes through the mounting seat (9) and is used to connect with the scraper, and a shaft sleeve (91), an oil seal (92) and a cover plate (93) are sequentially provided between the mounting seat (9) and the moving rod (2).

6. A scraper reducer according to claim 1 or 2, characterized in that: A connecting hole (16) is provided at the bottom of the housing (1), and one end of the moving rod (2) is located in the connecting hole (16). A second shaft sleeve (14) is provided between the moving rod (2) and the connecting hole (16), and a second sealing cover (15) is provided in the connecting hole (16).

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