Forward rotation operation and reverse rotation braking gearbox

Abstract

The utility model discloses a forward rotation operation and reverse rotation braking gear box, which relates to the technical field of oil pump gear boxes and comprises a gear box shell and a box cover arranged on the outer side of the gear box shell, a driving shaft is rotatably arranged on the side portion of the gear box shell in a penetrating mode, and a transmission shaft is rotatably arranged in the box cover in a penetrating mode. A plurality of connecting rods are fixedly arranged at the end, extending into the gearbox shell, of the transmission shaft, an outer gear is fixedly arranged through the connecting rods, an inner fluted disc is fixedly arranged at the end, close to the gearbox cover, of the driving shaft, a plurality of one-way teeth are symmetrically arranged on the outer side of the inner fluted disc in a surrounding mode, and the one-way teeth are meshed with internal tooth grooves of the outer gear. A plurality of one-way driving mechanisms which are symmetrically arranged in a surrounding mode are arranged between the one-way teeth and the side portion of the inner fluted disc. According to the gear box, the one-way teeth on the outer side of the inner fluted disc can be conveniently replaced while the gear box can perform forward rotation operation and reverse rotation braking, and it is guaranteed that the one-way teeth can be continuously and stably meshed with the outer gear.

Description

Technical Field

[0001] The utility model relates to the technical field of oil pump gear boxes, in particular to a forward running and reverse braking gear box. Background Art

[0002] An oil pump gearbox is a device used to transmit power and drive the oil pump. It primarily consists of a housing, gears, shafts, bearings, and seals. When the power source rotates the driving gear, the meshing action of the driving gear drives the driven gear in the opposite direction. This rotational motion of the gears causes the rotor or other working parts of the oil pump to move in a corresponding manner, thereby achieving the pump's oil suction and discharge functions.

[0003] In order to ensure that the oil pump can perform stable oil suction and discharge functions, the existing oil pump internal gear box will be equipped with two internal and external meshing gears for driving operation, and can perform forward rotation and reverse braking at the same time. However, since the gear set is fixed as a whole inside the gear box, the gears will collide and wear during the long-term operation of the gear set. At this time, it takes a lot of time to disassemble and replace the gears, which reduces the use effect of the gear box. Utility Model Content

[0004] In view of the above problems existing in the existing forward running and reverse braking gearboxes, the present utility model is proposed.

[0005] Therefore, the purpose of the present invention is to provide a forward running and reverse braking gearbox, which solves the problem that the gear set inside the oil pump gearbox cannot be disassembled and repaired conveniently and quickly.

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

[0007] A forward running and reverse braking gearbox, comprising a gearbox housing and a housing cover arranged on the outside of the gearbox housing, a drive shaft rotatably extending through the side of the gearbox housing, a transmission shaft rotatably extending through the interior of the housing cover, a plurality of connecting rods fixedly provided on one end of the transmission shaft extending into the interior of the gearbox housing, and an external gear fixedly provided via the connecting rods, an internal gear disk fixedly provided on the end of the drive shaft close to the housing cover, a plurality of one-way teeth arranged symmetrically around the outer side of the internal gear disk, the one-way teeth meshing with the internal tooth grooves of the external gear;

[0008] A plurality of one-way driving mechanisms are arranged between the one-way teeth and the side portion of the inner gear disc in a circumferentially symmetrical manner.

[0009] Preferably, the one-way drive mechanism includes a rotating rod, which is rotatably connected to the outer wall of the inner gear disc, a through hole is formed inside the one-way tooth, and is rotatably sleeved on the outer side of the rotating rod, and a stop rod is provided at the lower end of the side wall of the one-way tooth, and the stop rod is fixedly connected to the inner gear disc;

[0010] A tension spring is fixedly provided on the rod wall of the blocking rod, a hook is fixedly provided on the end of the tension spring, a clamping rod is clamped inside the clamping hook, and the clamping rod is fixedly connected to the one-way tooth.

[0011] Preferably, a slot is provided on the rod wall of the clamping rod, and the clamping hook is clamped in the slot.

[0012] Preferably, a cavity is provided inside the rotating rod, a spring is fixed to the bottom of the inner wall of the cavity, and a positioning block is fixed through the spring, the end of the positioning block passes through the rotating rod and extends to the outside, a positioning groove is provided on the inner wall of the through hole, and the end of the positioning block is inserted into the positioning groove.

[0013] Furthermore, the cavity and the end of the rotating rod are both provided with a strip-shaped hole, a pull rod is slidably inserted into the strip-shaped hole, and the pull rod is fixedly connected to the positioning block.

[0014] Preferably, the connecting rod and the external gear are screwed together with fixing bolts.

[0015] Preferably, the hook is an elastic iron hook.

[0016] Preferably, a plurality of connecting bolts are threadedly passed through the outer wall of the box cover, and the threaded ends of the connecting bolts are inserted into the side of the gear box housing.

[0017] Preferably, one side of the one-way tooth is arranged in an arc shape.

[0018] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0019] 1. The utility model is provided with a gear box housing, a box cover, an external gear, an internal gear plate, a one-way tooth and a one-way drive mechanism. Under the one-way meshing of the one-way gear and the external gear, the oil pump starts to work when the drive shaft rotates forward, and the external gear is not driven and performs stable braking work when the drive shaft rotates reversely, thereby ensuring stable use of the gear box.

[0020] 2. The utility model can conveniently replace the one-way teeth on the outer side of the inner gear disc through the one-way teeth, inner gear ring, rotating rod, cavity, positioning block, positioning groove and pull rod, ensuring that the one-way teeth can continuously and stably mesh with the outer gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0023] Figure 2 This is an internal cross-sectional view of the present utility model;

[0024] Figure 3 For the utility model Figure 2 A magnified schematic diagram of part A;

[0025] Figure 4 It is a partial cross-sectional view of the one-way tooth of the present utility model;

[0026] Figure 5 It is a schematic diagram of the three-dimensional structure of the clamping rod of the present utility model.

[0027] Description of reference numerals:

[0028] 1. Gearbox housing; 2. Box cover; 3. Drive shaft; 4. Transmission shaft; 5. Connecting rod; 6. External gear; 7. Internal gear plate; 8. One-way teeth; 9. Turning rod; 10. Stop rod; 11. Tension spring; 12. Hook; 13. Clamping rod; 14. Clamping slot; 15. Spring; 16. Positioning block; 17. Pull rod; 18. Connecting bolt. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0030] The embodiment of the utility model discloses a gear box with forward rotation and reverse braking.

[0031] Example 1

[0032] The utility model provides Figure 1-5 The forward running and reverse braking gearbox shown includes a gearbox shell 1 and a box cover 2 arranged on the outside of the gearbox shell 1. The outer wall of the box cover 2 is threaded with a plurality of connecting bolts 18, and the threaded ends of the connecting bolts 18 are inserted into the side of the gearbox shell 1. The side of the gearbox shell 1 is rotatably penetrated by a drive shaft 3, and the interior of the box cover 2 is rotatably penetrated by a transmission shaft 4. The end of the transmission shaft 4 extending into the interior of the gearbox shell 1 is fixed with a plurality of connecting rods 5, and an external gear 6 is fixed through the connecting rod 5. The connecting rod 5 and the external gear 6 are screwed together with fixing bolts. An inner gear disc 7 is fixedly provided at one end of the drive shaft 3 close to the box cover 2, and a plurality of one-way teeth 8 are arranged in a symmetrical manner on the outside of the inner gear disc 7. The one-way teeth 8 are meshed with the internal tooth grooves of the external gear 6, and one side of the one-way teeth 8 is arranged in an arc shape.

[0033] When the gearbox is running, the drive shaft 3 is driven to rotate by an external motor or other driving equipment. At this time, the drive shaft 3 drives the inner gear disc 7 to rotate forward. At this time, multiple one-way teeth 8 are engaged with the internal tooth grooves of the outer gear 6, which can make the outer gear 6 rotate, so that the outer gear 6 drives the transmission shaft 4 to rotate through multiple connecting rods 5, so that the oil pump can operate stably. When the drive shaft 3 is reversed, the multiple one-way teeth 8 rotate when they contact the internal tooth grooves of the outer gear 6 through their outer arc surface without pushing the outer gear 6, so that the position of the outer gear 6 is fixed and cannot drive the transmission shaft 4 to rotate, so that the gearbox and the oil pump are braked as a whole and do not work. After the gearbox has been used for a long time, the multiple one-way teeth 8 can be plugged and replaced with the inner gear disc 7 separately.

[0034] Example 2

[0035] Example 2 is based on Example 1 in order to enable the one-way teeth 8 and the external gear 6 to only perform one-way meshing drive, such as Figure 2-3 and Figure 5 As shown, a plurality of one-way drive mechanisms are provided between the one-way teeth 8 and the side of the inner gear disc 7 in a symmetrical manner. The one-way drive mechanism includes a rotating rod 9, which is rotatably connected to the outer wall of the inner gear disc 7. A through hole is provided inside the one-way teeth 8, and the one-way teeth 8 are rotatably sleeved on the outside of the rotating rod 9. A stop rod 10 is provided at the lower end of the side wall of the one-way teeth 8. The stop rod 10 is fixedly connected to the inner gear disc 7. A tension spring 11 is fixedly provided on the rod wall of the stop rod 10, and a hook 12 is fixedly provided on the end of the tension spring 11. A clamping rod 13 is clamped inside the clamping hook 12. The clamping hook 12 is an elastic iron hook. A clamping groove 14 is provided on the rod wall of the clamping rod 13. The clamping hook 12 is clamped in the clamping groove 14, and the clamping rod 13 is fixedly connected to the one-way teeth 8.

[0036] When the inner gear disc 7 rotates forward, the rotating rod 9 drives the one-way teeth 8 to rotate. At the same time, under the side limit of the blocking rod 10, the one-way teeth 8 are restricted and can only push the outer gear 6. When the inner gear disc 9 reverses, the one-way teeth 8 can be pushed by the tooth grooves of the outer gear 6 through its outer arc surface and rotate under the support of the rotating rod 9. At this time, the tension spring 11 is stretched by the engaging pull of the hook 12 and the lever 13. At this time, the one-way teeth 8 cannot push the outer gear 6, causing the gear box to perform reverse braking.

[0037] Example 3

[0038] In order to quickly disassemble the one-way teeth 8 based on the embodiment 1, the embodiment 3 Figure 4As shown, a cavity is provided inside the rotating rod 9, and a spring 15 is fixed to the bottom of the inner wall of the cavity, and a positioning block 16 is fixed by the spring 15. The end of the positioning block 16 passes through the rotating rod 9 and extends to the outside. A positioning groove is provided on the inner wall of the through hole, and the end of the positioning block 16 is inserted into the positioning groove. A strip hole is provided in common with the end of the rotating rod 9, and a pull rod 17 is slidably passed through the strip hole. The pull rod 17 is fixedly connected to the positioning block 16. Copy rights.

[0039] Since the rotating rod 9 and the one-way tooth 8 are connected by the plug-in fit of the positioning block 16 and the positioning groove, when the one-way tooth 8 needs to be disassembled, the pull rod 17 can be pulled so that the pull rod 17 drives the positioning block 16 into the cavity and squeezes the spring 15. At this time, under the elastic engagement of the hook 12 and the card rod 13, the card rod 12 can be separated from the card rod 13, so that the one-way tooth 8 can be quickly pulled out and replaced, thereby improving the convenience of disassembly and assembly of the internal components of the gear box.

[0040] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A forward running and reverse braking gearbox, comprising a gearbox housing (1) and a housing cover (2) arranged outside the gearbox housing (1), characterized in that: A drive shaft (3) is rotatably provided on the side of the gear box housing (1), and a transmission shaft (4) is rotatably provided inside the box cover (2). One end of the transmission shaft (4) extending into the interior of the gear box housing (1) is fixed with a plurality of connecting rods (5), and an external gear (6) is fixedly provided via the connecting rods (5). An internal gear disc (7) is fixedly provided on the end of the drive shaft (3) close to the box cover (2), and a plurality of one-way teeth (8) arranged in a symmetrical manner around the outside of the internal gear disc (7) are provided, and the one-way teeth (8) are meshed with the internal tooth grooves of the external gear (6); A plurality of one-way driving mechanisms are provided between the one-way teeth (8) and the side of the inner gear disc (7) and are arranged in a symmetrical manner around the one-way teeth.

2. The forward running and reverse braking gearbox according to claim 1, characterized in that: The one-way driving mechanism includes a rotating rod (9), the rotating rod (9) is rotatably connected to the outer wall of the inner gear disc (7), the one-way teeth (8) are provided with a through hole inside and are rotatably sleeved on the outer side of the rotating rod (9), the lower end of the side wall of the one-way teeth (8) is in contact with a stop rod (10), and the stop rod (10) is fixedly connected to the inner gear disc (7); A tension spring (11) is fixedly provided on the rod wall of the blocking rod (10), a hook (12) is fixedly provided on the end of the tension spring (11), a clamping rod (13) is clamped inside the clamping hook (12), and the clamping rod (13) is fixedly connected to the one-way tooth (8).

3. The forward running and reverse braking gearbox according to claim 2, characterized in that: A clamping groove (14) is provided on the rod wall of the clamping rod (13), and the clamping hook (12) is clamped in the clamping groove (14).

4. The forward running and reverse braking gearbox according to claim 2, characterized in that: A cavity is provided inside the rotating rod (9), a spring (15) is fixed on the bottom of the inner wall of the cavity, and a positioning block (16) is fixed via the spring (15), the end of the positioning block (16) passes through the rotating rod (9) and extends to the outside, a positioning groove is provided on the inner wall of the through hole, and the end of the positioning block (16) is inserted into the positioning groove.

5. The forward running and reverse braking gearbox according to claim 4, characterized in that: The cavity and the end of the rotating rod (9) are both provided with a strip hole, a pull rod (17) is slidably passed through the strip hole, and the pull rod (17) is fixedly connected to the positioning block (16).

6. The forward running and reverse braking gearbox according to claim 1, characterized in that: The connecting rod (5) and the external gear (6) are screwed and fixed by using fixing bolts.

7. The forward running and reverse braking gearbox according to claim 2, characterized in that: The hook (12) is an elastic iron hook.

8. The forward running and reverse braking gearbox according to claim 1, characterized in that: The outer wall of the box cover (2) is threaded with a plurality of connecting bolts (18), and the threaded ends of the connecting bolts (18) are inserted into the side of the gear box housing (1).

9. The forward running and reverse braking gearbox according to claim 1, characterized in that: One side of the one-way tooth (8) is arranged in an arc shape.

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