Helical gear speed reducer convenient to disassemble and inspect

Abstract

The utility model provides a helical gear speed reducer convenient to disassemble and inspect, which relates to the technical field of detachable mechanical box body structures, and comprises a gear box main body consisting of an upper gear box and a lower gear box, and connecting piece assemblies are arranged between four corners of the upper gear box and the lower gear box; first threaded holes are formed in the ends, away from each other, of the corners of the upper gearbox and the lower gearbox, second threaded holes are formed in the attaching ends of the upper gearbox and the lower gearbox, and connecting channels are formed between the first threaded holes and the second threaded holes. The connecting piece assembly which is uniquely designed comprises the connecting rod, the connector and the middle-section external thread, more stable connection between the upper gearbox and the lower gearbox is achieved, the connecting rod is in threaded connection with the second threaded hole through the middle-section external thread, the butt-joint ends of the upper gearbox and the lower gearbox are directly connected at a short distance, operation is easy, and the connecting piece assembly is convenient to use. Moreover, the stability and reliability of connection are greatly improved, and the device is suitable for harsh working environments and load conditions.

Description

TECHNICAL FIELD

[0001] The utility model relates to detachable mechanical box structure technical field especially, relates to a helical gear speed reducer convenient to disassemble and inspect. BACKGROUND

[0002] Helical gear speed reducer is widely used in industrial application, because the working environment and load condition of helical gear are relatively harsh, thus need to carry out maintenance regularly, the gear box structure design of existing helical gear speed reducer is relatively simple, usually adopts the way of upside down and places sealing washer to be fixed, passes through bolt and carries out fastening again, although this kind of mode is simple to operate, but the stability of connection is still insufficient, therefore, we propose a helical gear speed reducer convenient to disassemble and inspect. SUMMARY

[0003] The utility model discloses a kind of helical gear speed reducers, which are simple in structure, easy to disassemble and inspect, and can ensure the stability of connection.

[0004] To achieve the above object, the utility model adopts the following technical scheme:

[0005] A helical gear speed reducer convenient to disassemble and inspect, comprising a gear box main body composed of an upper gear box and a lower gear box, a connecting piece assembly is installed between the four corners of the upper gear box and the lower gear box.

[0006] First threaded holes are opened at the corners of the upper gear box and the lower gear box away from each other, second threaded holes are opened at the abutting ends of the upper gear box and the lower gear box, and a connecting channel is opened between the first threaded holes and the second threaded holes.

[0007] The connecting piece assembly includes a connecting rod, a connecting head, and a middle segment external thread. The connecting head has two parts, one of which is integrally connected to one end of the connecting rod, and the other is rotatably connected to the other end of the connecting rod. The connecting rod is built-in in the connecting channel. The middle segment external thread is opened in the middle segment part of the connecting rod periphery and is screw-connected with the second threaded hole.

[0008] Further, a sealing groove is opened at the top end of the lower gear box, a sealing washer is clamped in the sealing groove, and a clamping protrusion is integrally formed at the bottom of the upper gear box corresponding to the sealing groove.

[0009] Further, the size of the connecting channel is larger than that of the connecting rod, which is used to connect the connecting rod to pass through and make the middle segment external thread of the connecting rod periphery screw-connected with the second threaded hole.

[0010] Further, a sealing rubber sleeve is sleeved on both ends of the middle segment external thread of the connecting rod periphery.

[0011] Further, the connecting head is composed of an inner hexagonal bolt head and an outer threaded seat, and the outer threaded seat is integrally formed at one end of the inner hexagonal bolt head.

[0012] Further, one end of the connecting rod is provided with a terminal thread, and the terminal thread is threadedly connected with a third threaded hole formed in the inner portion of the outer threaded seat.

[0013] Further, the outer threaded seat is threadedly connected with the first threaded hole.

[0014] Further, the outer periphery of the inner hexagonal bolt head is provided with anti-skid stripes.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The unique connecting component assembly is designed, the connecting component assembly comprises a connecting rod, a connecting head and a middle section outer thread, the connecting rod is threadedly connected with the second threaded hole through the middle section outer thread, the butt joint end of the upper gear box and the lower gear box is directly and closely connected, the operation is simple, and the stability and reliability of the connection are greatly improved, and the connecting component assembly is suitable for harsh working environments and load conditions.

[0017] 2. The connecting component assembly is designed, the connecting head is composed of an inner hexagonal bolt head and an outer threaded seat, the outer threaded seat is threadedly connected with the first threaded hole, and the terminal thread at one end of the connecting rod is threadedly connected with the third threaded hole in the inner portion of the outer threaded seat, so that the assembly and disassembly are easily realized, the helical gear reducer can be regularly maintained, and the maintainability and service life of the equipment are improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The utility model provides a whole structure schematic diagram of the helical gear reducer convenient to disassemble and inspect;

[0019] Figure 2 The utility model provides an upper and lower gear box split structure schematic diagram of the helical gear reducer convenient to disassemble and inspect;

[0020] Figure 3 The utility model provides a connecting component assembly structure schematic diagram of the helical gear reducer convenient to disassemble and inspect;

[0021] Figure 4 The utility model provides a connecting component assembly split structure schematic diagram of the helical gear reducer convenient to disassemble and inspect.

[0022] Legend: 1, upper gear box;11, clamping protrusion;

[0023] 2, lower gear box;21, sealing groove;22, sealing pad;

[0024] 3. Connecting member assembly; 31. Connecting rod; 32. Connecting head; 321. Hexagonal socket head cap screw; 322. External thread seat; 323. Third threaded hole; 33. Middle section external thread; 34. End external thread;

[0025] 4. First threaded hole;

[0026] 5. Second threaded hole;

[0027] 6. Connecting passage;

[0028] 7. Sealing sleeve. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0030] In order to facilitate the understanding of the present application, the present application will be more fully described below with reference to the related description of the present application, and several embodiments of the present application are given. However, the present application can be realized in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0031] It should be noted that when an element is referred to as being "fixedly attached" to another element, it can be directly on the other element or there can be an intervening element between them. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or there can be an intervening element between them. The terms "vertical", "horizontal", "left", "right", and similar terms as used herein are for the purpose of illustration only.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The use of the terms "and / or" includes a combination of one or more of the associated listed items.

[0033] As Figures 1-4As shown, this embodiment provides a helical gear reducer that is easy to disassemble and inspect. It is mainly composed of a gearbox body consisting of an upper gearbox 1 and a lower gearbox 2. Connecting components 3 are designed at the four corners of the upper gearbox 1 and the lower gearbox 2 to ensure a stable connection between the two gearboxes. A first threaded hole 4 is opened at the far end of each corner, while a second threaded hole 5 is opened at the close end. A connecting channel 6 is opened between the first threaded hole 4 and the second threaded hole 5 for the installation of the connecting components 3.

[0034] The connector assembly 3 consists of a connecting rod 31, a connector 32, and a middle section external thread 33;

[0035] The two ends of the connecting rod 31 are an integral connecting head 32 and a rotatable connecting head 32, respectively. The rotatable connecting head 32 is rotated and disassembled when the connecting rod 31 is removed. The connecting rod 31 is designed to be built into the connecting channel 6, and the middle section of its outer periphery is provided with a middle section external thread 33. These threads cooperate with the second threaded hole 5 to achieve a stable threaded connection.

[0036] Example 2

[0037] Based on Example 1, such as Figures 1-4 As shown, a sealing groove 21 is opened at the top of the lower gearbox 2, and a sealing gasket 22 is snapped into it. At the same time, a snap-fit ​​protrusion 11 is integrally formed at the bottom of the upper gearbox 1 corresponding to the sealing groove 21, which effectively enhances the sealing performance of the gearbox body, prevents lubricating oil leakage, and ensures the normal operation of the helical gear reducer and the lubrication effect of the gears.

[0038] To ensure that the connecting rod 31 can pass smoothly through the connecting channel 6 and be threaded into the second threaded hole 5, we specially designed the size of the connecting channel 6 to be larger than that of the connecting rod 31. This avoids the connecting channel 6 from affecting the entry of the middle section external thread 33. In order to make up for the gap here and ensure the sealing stability of the connection, we have fitted sealing sleeves 7 on both ends of the middle section external thread 33 around the connecting rod 31.

[0039] The connector 32 consists of an internal hex bolt head 321 and an external thread seat 322. The external thread seat 322 is integrally formed at one end of the internal hex bolt head 321. One end of the connecting rod 31 is provided with a terminal thread 34. These threads cooperate with the third threaded hole 323 opened inside the external thread seat 322, realizing the detachable connection between the connecting rod 31 and the connector 32. The external thread seat 322 is threadedly connected to the first threaded hole 4, ensuring the installation of the entire connector assembly 3 on the upper gearbox 1 and the lower gearbox 2. For ease of operation, we designed anti-slip stripes on the periphery of the internal hex bolt head 321, which can be rotated by using an internal hex wrench.

[0040] Workflow: When using this convenient to disassemble helical gear reducer, first align the upper gear box 1 with the lower gear box 2, make sure that the clamping protrusion 11 can smoothly enter the sealing groove 21, then rotate the integral connection end connector 32, make the outer thread seat 322 threadedly connected with the first threaded hole 4, at the same time, the middle segment outer thread 33 of the connecting rod 31 is threadedly connected with the second threaded hole 5, in the rotating process, the sealing rubber sleeve 7 will be extruded, further enhancing the sealing of the connection (first insert a sealing rubber sleeve 7, when the connecting rod 31 to the other end, insert another sealing rubber sleeve 7 at the other end), then take the connector 32 with the third threaded hole 323, threadedly connect the connector 32 with the end thread 34 of the connecting rod 31, at the same time, the outer thread seat 322 is threadedly connected with the first threaded hole 4, after sequentially completing the installation of the connecting piece assembly 3, the installation of the helical gear reducer can work normally, when disassembling, only need to rotate the connector 32 in the opposite direction (rotate the connected connector 32) to easily disassemble the upper gear box 1 and the lower gear box 2, greatly simplifying the maintenance process.

[0041] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A helical gear speed reducer convenient for disassembly and inspection, comprising a gear case main body composed of an upper gear case (1) and a lower gear case (2), characterized in that: The connecting piece assembly (3) is installed between the four corners of the upper gear box (1) and the lower gear box (2). The first threaded hole (4) is arranged at the corner of the upper gear box (1) and the lower gear box (2) away from the end, and the second threaded hole (5) is arranged at the abutting end of the upper gear box (1) and the lower gear box (2), and the connecting channel (6) is arranged between the first threaded hole (4) and the second threaded hole (5). The connecting piece assembly (3) comprises a connecting rod (31), a connecting head (32) and a middle segment external thread (33), the connecting head (32) is integrally and rotatably connected to the two ends of the connecting rod (31), the connecting rod (31) is arranged in the connecting channel (6), and the middle segment external thread (33) is arranged on the middle segment part of the outer periphery of the connecting rod (31) and is threadedly connected with the second threaded hole (5).

2. The helical gear speed reducer of claim 1, wherein: The sealing groove (21) is arranged at the top end of the lower gear box (2), the sealing pad (22) is clamped in the sealing groove (21), and the clamping protrusion (11) is integrally formed on the bottom of the upper gear box (1) corresponding to the sealing groove (21).

3. The helical gear speed reducer of claim 1, wherein: The size of the connecting channel (6) is greater than that of the connecting rod (31), the connecting rod (31) passes through the connecting channel (6), and the middle segment external thread (33) on the outer periphery of the connecting rod (31) is threadedly connected with the second threaded hole (5).

4. The helical gear speed reducer of claim 1, wherein: The outer periphery of the connecting rod (31) is sleeved with the sealing rubber sleeve (7) at both ends of the middle segment external thread (33).

5. The helical gear speed reducer of claim 1, wherein: The connecting head (32) is composed of an inner hexagonal bolt head (321) and an external thread seat (322), and the external thread seat (322) is integrally formed at one end of the inner hexagonal bolt head (321).

6. The helical gear speed reducer of claim 5, wherein: One end of the connecting rod (31) is provided with a terminal thread (34), and the terminal thread (34) is threadedly connected with a third threaded hole (323) arranged in the internal thread seat (322).

7. The helical gear speed reducer of claim 5, wherein: The external thread seat (322) is threadedly connected with the first threaded hole (4).

8. The helical gear speed reducer of claim 5, wherein: The outer periphery of the inner hexagonal bolt head (321) is provided with anti-skid stripes.

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