Hydraulic pump with high sealing performance
By using a combination device of sealing ceiling and rubber sealing strips in the hydraulic pump, combined with the mechanical structure of bolts and threaded rods, the cumbersome problems of adhesive cleaning and re-adhesiveness are solved, and maintenance convenience and oil pipe fixing stability are improved.
Patent Information
- Application Number
- CN202420963500.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The sealing of existing hydraulic pumps uses adhesives, which leads to frequent cleaning and re-adhesive during maintenance, affecting the convenience of disassembly and installation.
The combination of sealing ceiling and rubber sealing strips is used to achieve sealing through the mechanical structure of bolts and threaded rods, simplifying the seal installation process, and clamping the oil pipes through clamps and threaded rods to improve fixing stability.
The installation process of sealed ceiling cover is simplified, the removal and installation convenience of maintenance personnel is improved, and the fixing stability and service life of the connecting oil pipe is enhanced.
Smart Images
Figure CN222254286U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic pumps, in particular to a hydraulic pump with high sealing performance. Background Art
[0002] A hydraulic pump is a hydraulic system power element that is driven by an engine or an electric motor and converts mechanical energy into hydraulic energy. It is a power element of the hydraulic system and is driven by an engine or an electric motor. It sucks oil from the hydraulic oil tank, forms pressurized oil and discharges it to the actuator. Hydraulic pumps are divided into gear pumps, plunger pumps, vane pumps and screw pumps according to their structure.
[0003] Hydraulic pumps include three types: gear pumps, vane pumps and plunger pumps. Among them, gear pumps are small in size, simple in structure, not strict in oil cleanliness requirements, and are relatively cheap; therefore, they are widely used to transport various oils, such as heavy oil, diesel, and lubricating oil. They are equipped with copper gears to transport low-point liquids, such as gas oil, etc. At present, the cover of the gear pump is usually sealed by coating epoxy resin or other adhesives, but when maintenance personnel need to clean, replace or repair the parts in the pump body, after the maintenance personnel disassemble the cover, the adhesive is easy to adhere to the surface of the pump body and the cover. When the maintenance personnel have finished processing the parts inside the pump body, the maintenance personnel need to clean the adhesive on the surface of the pump body and the cover, and then re-inject the adhesive for installation. The process is relatively cumbersome, affecting the convenience of maintenance personnel in disassembling and installing the cover. Utility Model Content
[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a hydraulic pump with high sealing performance, which can solve the problem that after the maintenance personnel have finished processing the parts inside the pump body, the maintenance personnel need to clean the adhesive on the surface of the pump body and the cover, and then re-inject the adhesive for installation. The process is relatively cumbersome, which affects the convenience of the maintenance personnel in disassembling and installing the cover.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-sealing performance hydraulic pump, comprising a hydraulic pump and a high-sealing device; the high-sealing device comprises a sealing top cover, bolts and a rubber sealing strip, the sealing top cover is fixedly mounted on the surface of the hydraulic pump by four bolts, a card slot is provided at the bottom of the sealing top cover, a rubber sealing strip is clamped inside the card slot, a contact groove is provided on the surface of the hydraulic pump, and the rubber sealing strip is slidably clamped inside the contact groove.
[0006] Preferably, a main shaft is arranged inside the hydraulic pump, and an oil inlet and an oil outlet are arranged on the surface of the hydraulic pump.
[0007] Preferably, a tee frame is welded on the surface of the hydraulic pump, and two first clamping plates are welded on the surface of the tee frame.
[0008] Preferably, connecting oil pipes are fixedly mounted on the surfaces of the oil inlet and the oil outlet, and the two first clamping plates are fixedly clamped on the surfaces of the connecting oil pipes on the same side.
[0009] Preferably, two support blocks are welded on the surface of the hydraulic pump, and threaded rods are threadedly sleeved inside the two support blocks.
[0010] Preferably, the opposite ends of the two threaded rods are rotatably connected to second clamping plates, the two second clamping plates are fixedly clamped on the surface of the oil pipe connected on the same side, and the opposite ends of the two threaded rods are welded with circular turntables.
[0011] Compared with the prior art, the beneficial effects of the utility model are:
[0012] (1) In the high sealing performance hydraulic pump, the bolts can be rotated to drive the sealing top cover to be pressed downwardly against the surface of the hydraulic pump, and the sealing top cover can be slid downwardly to drive the rubber sealing strip to slide downwardly against the inside of the contact groove. The rubber sealing strip can be used to seal the connection between the sealing top cover and the hydraulic pump. Maintenance personnel no longer need to clean the adhesive on the surface of the pump body and the sealing cover, which simplifies the installation process of the sealing top cover, thereby improving the convenience of maintenance personnel in removing and installing the sealing top cover.
[0013] (2) In the high sealing performance hydraulic pump, the threaded rod rotates and drives the second clamping plate to move and clamp on the surface of the connecting oil pipe through the threaded connection between the support block. The connecting oil pipe is clamped and fixed by the first clamping plate and the second clamping plate, which further improves the stability of the connecting oil pipe fixed on the surface of the hydraulic pump, ensures the safety of the connecting oil pipe, and prolongs the service life of the connecting oil pipe. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0015] Figure 1 This is a schematic diagram of the overall structure of a high sealing performance hydraulic pump of the utility model;
[0016] Figure 2 It is a schematic diagram of the cross-sectional structure of the sealing top cover of the utility model;
[0017] Figure 3 This is a schematic diagram of the bottom structure of the hydraulic pump of the utility model;
[0018] Figure 4 It is a schematic diagram of the bottom structure of the sealing top cover of the utility model.
[0019] Figure numerals: 1. hydraulic pump; 2. main shaft; 3. sealing top cover; 4. bolt; 5. slot; 6. rubber sealing strip; 7. contact groove; 8. oil inlet; 9. oil outlet; 10. connecting oil pipe; 11. tee frame; 12. first clamping plate; 13. support block; 14. threaded rod; 15. second clamping plate; 16. circular turntable. DETAILED DESCRIPTION
[0020] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0021] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0022] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0023] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.
[0024] See also Figure 1-4 The utility model provides a technical solution: a high-sealing performance hydraulic pump, including a hydraulic pump 1 and a high-sealing device, a main shaft 2 is arranged inside the hydraulic pump 1, an oil inlet 8 and an oil outlet 9 are arranged on the surface of the hydraulic pump 1, the high-sealing device includes a sealing top cover 3, bolts 4 and a rubber sealing strip 6, the sealing top cover 3 is fixedly installed on the surface of the hydraulic pump 1 by four bolts 4, a card slot 5 is provided at the bottom of the sealing top cover 3, a rubber sealing strip 6 is clamped inside the card slot 5, a contact groove 7 is provided on the surface of the hydraulic pump 1, and the rubber sealing strip 6 is slidably clamped inside the contact groove 7;
[0025] When the high sealing performance hydraulic pump is in use, the staff fixes the output end of the motor with the main shaft 2 through the coupling, and then drives the main shaft 2 to rotate inside the hydraulic pump 1 through the motor to provide power. The hydraulic oil enters the inside of the hydraulic pump 1 from the oil inlet 8 and discharges the high-pressure oil from the oil outlet 9. When the maintenance personnel need to inspect the parts inside the hydraulic pump 1, the maintenance personnel first remove the four bolts 4, and the maintenance personnel slide the sealing top cover 3 upward to complete the disassembly. The sealing top cover 3 slides upward and drives the rubber sealing strip 6 to slide upward to disengage from the inside of the contact groove 7. The maintenance personnel repair the hydraulic pump After the parts inside the hydraulic pump 1 are inspected and repaired, the maintenance personnel fix the sealing top cover 3 on the surface of the hydraulic pump 1 again with the four bolts 4. The rotation of the bolts 4 can drive the sealing top cover 3 to press downward on the surface of the hydraulic pump 1. The sealing top cover 3 slides downward to drive the rubber sealing strip 6 to slide downward and press inside the contact groove 7. The connection between the sealing top cover 3 and the hydraulic pump 1 can be sealed by the rubber sealing strip 6. The maintenance personnel no longer need to clean the adhesive on the surface of the pump body and the sealing cover, which simplifies the installation process of the sealing top cover 3, thereby improving the convenience of the maintenance personnel in disassembling and installing the sealing top cover 3.
[0026] A connecting oil pipe 10 is fixedly installed on the surface of the oil inlet 8 and the oil outlet 9, a tee frame 11 is welded on the surface of the hydraulic pump 1, and two first clamping plates 12 are welded on the surface of the tee frame 11, and the two first clamping plates 12 are fixedly clamped on the surface of the connecting oil pipe 10 on the same side, and two support blocks 13 are welded on the surface of the hydraulic pump 1, and threaded rods 14 are threadedly sleeved on the inside of the two support blocks 13, and second clamping plates 15 are rotatably connected to the opposite ends of the two threaded rods 14, and the two second clamping plates 15 are fixedly clamped on the surface of the connecting oil pipe 10 on the same side, and circular turntables 16 are welded on the opposite ends of the two threaded rods 14.
[0027] After the staff has fixedly installed the connecting oil pipe 10 at the positions of the oil inlet 8 and the oil outlet 9, the staff can rotate the threaded rod 14 through the circular turntable 16. The threaded rod 14 rotates and drives the second clamping plate 15 to move and clamp on the surface of the connecting oil pipe 10 through the threaded connection between the support block 13. The connecting oil pipe 10 is clamped and fixed by the first clamping plate 12 and the second clamping plate 15, which further improves the stability of the fixed installation of the connecting oil pipe 10 on the surface of the hydraulic pump 1, ensures the safety of the use of the connecting oil pipe 10, and thus extends the service life of the connecting oil pipe 10.
[0028] Working principle: For the high sealing performance hydraulic pump, the maintenance personnel first remove the four bolts 4, slide the sealing top cover 3 upward to drive the rubber sealing strip 6 to slide upward to disengage from the inside of the contact groove 7, and after the maintenance personnel have completed the inspection of the parts inside the hydraulic pump 1, the maintenance personnel again fix the sealing top cover 3 on the surface of the hydraulic pump 1 through the four bolts 4, and the rotation of the bolts 4 can drive the sealing top cover 3 to be squeezed downward on the surface of the hydraulic pump 1, and the sealing top cover 3 drives the rubber sealing strip 6 to slide downward and squeezed inside the contact groove 7 to seal the connection between the sealing top cover 3 and the hydraulic pump 1, thereby simplifying the installation process of the sealing top cover 3. The staff rotates the threaded rod 14 through the circular turntable 16, and the threaded rod 14 rotates and drives the second clamping plate 15 to move and clamp on the surface of the connecting oil pipe 10 through the threaded connection between the support block 13, and the connecting oil pipe 10 is clamped and fixed by the first clamping plate 12 and the second clamping plate 15, thereby further improving the stability of the fixed installation of the connecting oil pipe 10 on the surface of the hydraulic pump 1, and ensuring the safety of the use of the connecting oil pipe 10.
[0029] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A high sealing performance hydraulic pump, characterized in that: include: A hydraulic pump (1) and a high sealing device; The high sealing device comprises a sealing top cover (3), bolts (4) and a rubber sealing strip (6); the sealing top cover (3) is fixedly mounted on the surface of a hydraulic pump (1) by means of four bolts (4); a clamping groove (5) is provided at the bottom of the sealing top cover (3); the rubber sealing strip (6) is clamped inside the clamping groove (5); a contact groove (7) is provided on the surface of the hydraulic pump (1); and the rubber sealing strip (6) is slidably clamped inside the contact groove (7).
2. A high sealing performance hydraulic pump according to claim 1, characterized in that: A main shaft (2) is arranged inside the hydraulic pump (1), and an oil inlet (8) and an oil outlet (9) are arranged on the surface of the hydraulic pump (1).
3. A high sealing performance hydraulic pump according to claim 2, characterized in that: A three-way frame (11) is welded on the surface of the hydraulic pump (1), and two first clamping plates (12) are welded on the surface of the three-way frame (11).
4. A high sealing performance hydraulic pump according to claim 3, characterized in that: The surfaces of the oil inlet (8) and the oil outlet (9) are both fixedly mounted with connecting oil pipes (10), and the two first clamping plates (12) are both fixedly clamped on the surfaces of the connecting oil pipes (10) on the same side.
5. A high sealing performance hydraulic pump according to claim 4, characterized in that: Two support blocks (13) are welded on the surface of the hydraulic pump (1), and threaded rods (14) are threadedly sleeved inside the two support blocks (13).
6. A high sealing performance hydraulic pump according to claim 5, characterized in that: The opposite ends of the two threaded rods (14) are rotatably connected to a second clamping plate (15), and the two second clamping plates (15) are fixedly clamped on the surface of the oil pipe (10) connected on the same side. The opposite ends of the two threaded rods (14) are welded to a circular rotating disk (16).