Mounting and connecting structure for motor and hydraulic pump and excavator
The design of the integral mounting base and detachable protective plate solves the problem of difficult observation and replacement of the coupling in the connection structure between the motor and the hydraulic pump, and realizes a convenient maintenance and installation process.
Patent Information
- Application Number
- CN202422753491.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-12
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-12
AI Technical Summary
In the prior art, the mounting connection structure of the motor and the hydraulic pump is difficult to observe and replace the coupling conveniently, and the entire structure needs to be disassembled for maintenance.
Adopting the integral mounting base and protective plate design, the coupling is arranged between the mounting vertical plates and covered by a removable protective plate, which makes it easy to observe and replace the coupling.
It realizes convenient inspection and replacement of the coupling, simplifies the maintenance process, and improves the convenience of installing the connection structure.
Smart Images
Figure CN223373783U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of engineering machinery, and more specifically to a motor and hydraulic pump installation and connection structure and an excavator. Background Art
[0002] In electric construction machinery, such as an electric excavator, the hydraulic pump is driven by an electric motor, and the hydraulic pump is usually directly connected to the motor through a coupling. Figure 1 A conventional motor and hydraulic pump mounting connection structure for construction machinery is shown. In this mounting connection structure, the motor 10 is connected to a transition cover 91. A rear bracket 94 is positioned between the transition cover 91 and the hydraulic pump 20. The transition cover 91 is connected to the rear bracket 94, which mates with the hydraulic pump 20 via a stopper structure. The motor 10 and the hydraulic pump 20 are connected via a coupling. A front bracket 93 and a rear bracket 94 are mounted on a vehicle mounting bracket 95 via shock absorbers, which is welded to the slewing platform. A coupling is located in the transition cover and connects the motor's output shaft to the hydraulic pump's input shaft. Because the coupling is a wearable part, it requires inspection and maintenance during use. Figure 1 The technical solution in the invention makes it difficult to observe the wear of the coupling during use, and inspection, repair and replacement of the coupling require the entire coupling to be disassembled, which is inconvenient to use. Utility Model Content
[0003] The technical problem to be solved by the utility model is the installation and connection problem of a motor and a hydraulic pump, and provides an installation and connection structure of a motor and a hydraulic pump and an excavator.
[0004] The technical solution for achieving its objectives is: a motor and hydraulic pump mounting connection structure comprising an integral mounting base, a hydraulic pump, a motor, and a coupling. The mounting base has two fixed, parallel mounting plates spaced apart from each other. The hydraulic pump and the motor are fixedly mounted on opposing front and rear side surfaces of the two mounting plates. The coupling is arranged between the two mounting plates and connected to the output shaft of the motor and the input shaft of the hydraulic pump. Protective plates are detachably fixed to the two mounting plates, covering the space between the two mounting plates. In this utility model, removing the protective plates facilitates observation and replacement of the coupling.
[0005] In the motor and hydraulic pump mounting connection structure of the present invention, the mounting connection structure also includes a transition plate fixedly connected to the front end of the motor, the transition plate is fixedly connected to the mounting vertical plate on the rear side and has a stop structure in the center for positioning the motor.
[0006] The motor and hydraulic pump mounting connection structure of the present invention further includes a rear bracket for supporting the rear end of the motor. The lower portion of the rear bracket is fixedly connected to the mounting base by bolts, and the upper portion is fixedly connected to the rear end of the motor by bolts. The bracket supports the rear end of the motor to prevent the motor from being cantilevered.
[0007] In the motor and hydraulic pump installation and connection structure of the present invention, the rear bracket includes a base plate and a U-shaped support plate with an upward opening; the base plate is in contact with the mounting seat and is fixedly connected by bolts; the lower part of the support plate is welded to the base plate, and the two arms of the upper part are fixedly connected to the motor by bolts.
[0008] In the motor and hydraulic pump mounting connection structure of the present invention, the mounting seat has a horizontally arranged seat plate, the two mounting vertical plates are vertically welded to the seat plate, and shock absorbers are installed at the four corners of the seat plate.
[0009] In the motor and hydraulic pump installation and connection structure of the present invention, connecting plates are welded on the left and right sides of the lower part between the two mounting vertical plates, the rear end of the connecting plate is vertically welded to the mounting vertical plate on the rear side, the front part of the connecting plate is vertically welded to the mounting vertical plate on the front side, and the bottom edge of the connecting plate is welded to the seat plate.
[0010] In the motor and hydraulic pump installation connection structure of the present invention, the front installation vertical plate is vertically welded to the side surface of the connecting plate, and the front end of the connecting plate extends forward to the front side of the front installation vertical plate.
[0011] In the installation and connection structure of the motor and the hydraulic pump of the utility model, the protective plate is in the shape of an arched curved plate with left and right ends bent downward, and the left and right ends are detachably connected to the connecting plates on the corresponding sides.
[0012] In the motor and hydraulic pump mounting connection structure of the present invention, the mounting base also has two reinforcing plates, which are arranged in parallel on the left and right sides below the motor; the front end of the reinforcing plate is welded to the rear side surface of the rear mounting vertical plate, and the bottom edge is welded to the upper side surface of the seat plate.
[0013] The technical solution for achieving the purpose of the utility model is: an excavator, which has the above-mentioned motor and hydraulic pump installation and connection structure.
[0014] Compared with the prior art, the motor and hydraulic pump mounting connection structure of the utility model is convenient for inspection, replacement and maintenance of the coupling, and the mounting connection structure is also relatively convenient for installation on the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1The present invention is a schematic diagram of the installation and connection structure of the motor and the hydraulic pump on the existing engineering machinery.
[0016] Figure 2 It is a schematic diagram of the installation and connection structure of the motor and the hydraulic pump of the utility model.
[0017] Figure 3 It is an exploded schematic diagram of the installation and connection structure of the motor and the hydraulic pump of the utility model.
[0018] Figure 4 It is a structural schematic diagram of a mounting seat in the mounting connection structure of a motor and a hydraulic pump of the utility model.
[0019] Figure 5 It is a structural diagram of the rear bracket in the installation and connection structure of the motor and the hydraulic pump of the utility model.
[0020] Figure 6 It is a structural schematic diagram of a transition plate in the installation and connection structure of a motor and a hydraulic pump of the utility model.
[0021] Figure 7 It is a structural diagram of a coupling in the installation and connection structure of a motor and a hydraulic pump of the utility model.
[0022] Parts names and serial numbers in the figure:
[0023] Motor 10 , hydraulic pump 20 , transition cover 91 , front bracket 93 , rear bracket 94 , vehicle mounting bracket 95 .
[0024] Mounting seat 30 , seat plate 31 , front mounting upright plate 32 , rear mounting upright plate 33 , connecting plate 34 , and reinforcing plate 35 .
[0025] Rear bracket 40 , bottom plate 41 , support plate 42 , and arm 43 .
[0026] Protective cover 50.
[0027] Coupling 60.
[0028] Transition plate 70 and stop structure 71. DETAILED DESCRIPTION
[0029] The specific implementation scheme is described below with reference to the accompanying drawings.
[0030] like Figure 2 Figure 3As shown, the motor and hydraulic pump mounting connection structure includes an integral mounting base 30, a hydraulic pump 10, a motor 20, and a coupling 60. The mounting base 30 has two fixed, parallel mounting plates spaced apart from each other. The hydraulic pump 10 and the motor 20 are fixedly mounted on the front and rear side surfaces of the two mounting plates, which are opposite each other. The coupling 60 is arranged between the two mounting plates and is connected to the output shaft of the motor 20 and the input shaft of the hydraulic pump 10. A protective plate 50 is detachably fixed to the two mounting plates, covering the space between the two mounting plates.
[0031] like Figure 4 As shown, the mounting base 30 has a horizontally arranged seat plate 31, and the two mounting vertical plates are a front mounting vertical plate 32 and a rear mounting vertical plate 33. The front mounting vertical plate 32 and the rear mounting vertical plate 33 are vertically welded to the seat plate 31. The seat plate 31 is roughly square, and shock absorbers are installed at the four corners of the seat plate 31. The mounting base can be installed on the slewing platform of engineering machinery such as an excavator through the shock absorbers. The hydraulic pump 10 is fixedly mounted on the front side of the front mounting vertical plate 32, and the motor 20 is mounted on the rear side of the rear mounting vertical plate 33. The structure of the coupling 60 is shown in FIG. Figure 7 As shown, it is arranged in the space between the front mounting upright plate 32 and the rear mounting upright plate 33 , and the protective plate 50 covers the space between the front mounting upright plate 32 and the rear mounting upright plate 33 .
[0032] Optionally, connecting plates 34 are welded to the left and right sides of the lower portion of the space between the front mounting plate 32 and the rear mounting plate 33. The rear end of the connecting plate 34 is welded perpendicularly to the rear mounting plate 33, the front end of the connecting plate 34 is welded perpendicularly to the front mounting plate 32, and the bottom edge of the connecting plate 34 is welded to the seat plate 31. Furthermore, the front mounting plate 32 is welded perpendicularly to the side of the connecting plate 34, and the front end of the connecting plate 34 extends forward to the front side of the front mounting plate 32. The front end of the connecting plate 34 is also bent toward the direction directly below the hydraulic pump 10. Figure 3 As shown, further, the left and right ends of the protective plate 50 are bent downward to form an arched curved plate-like result, and the left and right ends thereof are detachably connected to the connecting plates 34 on the corresponding sides.
[0033] like Figure 4 As shown, the mounting base 30 further includes two reinforcing plates 35, which are arranged parallel to the left and right sides below the motor 20. The front ends of the reinforcing plates 35 are welded to the rear side of the rear mounting vertical plate 33, and their bottom edges are welded to the upper side of the seat plate 31. Optionally, the rear ends of the reinforcing plates 35 are further bent toward the bottom of the motor 20.
[0034] Alternatively, as Figure 3 As shown, the mounting connection structure further includes a transition plate 70 fixedly connected to the front end of the motor, and the transition plate 70 is fixedly connected to the rear mounting vertical plate 33. Figure 6As shown, the center of the transition plate 70 has a stop structure 71 for positioning with the motor 20 .
[0035] like Figure 3 Figure 5 The mounting connection structure also includes a rear bracket 40 for supporting the rear end of the motor. The lower portion of the rear bracket 40 is fixedly connected to the mounting base 30 by bolts, and the upper portion is fixedly connected to the rear end of the motor 20 by bolts. The rear bracket 40 supports the rear end of the motor 20 to prevent the motor from being cantilevered.
[0036] Alternatively, as Figure 5 As shown, the rear bracket 40 includes a base plate 41 and a U-shaped support plate 42 with an upward opening. The base plate 41 is attached to the base plate 31 of the mounting base 30 and is fixedly connected via bolts. The lower portion of the support plate 42 is welded to the base plate 41, and the two upper arms 43 are fixedly connected to the rear end of the motor 20 via bolts.
[0037] This embodiment also provides an excavator having the aforementioned motor and hydraulic pump mounting and connecting structure.
Claims
1. A motor and hydraulic pump mounting connection structure, comprising an integral mounting base, a hydraulic pump, a motor, and a coupling, characterized in that: The mounting base has two parallel mounting plates that are fixed and arranged with a front-to-back interval. The hydraulic pump and the motor are fixedly mounted on the front and rear side surfaces opposite to each other of the two mounting plates. The coupling is arranged between the two mounting plates and connected to the output shaft of the motor and the input shaft of the hydraulic pump. A protective plate covering the space between the two mounting plates is detachably fixedly mounted on the two mounting plates.
2. The motor and hydraulic pump installation and connection structure according to claim 1, characterized in that: The mounting connection structure also includes a transition plate fixedly connected to the front end of the motor, the transition plate is fixedly connected to the mounting vertical plate on the rear side and has a stop structure in the center for positioning with the motor.
3. The motor and hydraulic pump installation and connection structure according to claim 1 or 2, characterized in that: The mounting and connecting structure also includes a rear bracket for supporting the rear end of the motor. The lower portion of the rear bracket is fixedly connected to the mounting seat by bolts, and the upper portion of the rear bracket is fixedly connected to the rear end of the motor by bolts.
4. The motor and hydraulic pump installation and connection structure according to claim 3, characterized in that: The rear bracket includes a base plate and a U-shaped support plate with an upward opening; the base plate is attached to the mounting seat and fixedly connected by bolts; the lower part of the support plate is welded to the base plate, and the two arms of the upper part are fixedly connected to the motor by bolts.
5. The motor and hydraulic pump installation and connection structure according to claim 1, characterized in that: The mounting seat has a horizontally arranged seat plate, the two mounting vertical plates are vertically welded to the seat plate, and shock absorbers are installed at the four corner positions of the seat plate.
6. The motor and hydraulic pump installation and connection structure according to claim 5, characterized in that: Connecting plates are welded on the left and right sides of the lower part between the two mounting plates, the rear end of the connecting plate is welded vertically to the mounting plate on the rear side, the front part of the connecting plate is welded vertically to the mounting plate on the front side, and the bottom edge of the connecting plate is welded to the seat plate.
7. The motor and hydraulic pump mounting connection structure according to claim 6, characterized in that: The front mounting plate is vertically welded to the side surface of the connecting plate, and the front end of the connecting plate extends forward to the front side of the front mounting plate.
8. The motor and hydraulic pump mounting connection structure according to claim 6 or 7, characterized in that: The protective plate is in the shape of an arched curved plate with left and right ends bent downward, and the left and right ends are detachably connected to the connecting plates on the corresponding sides.
9. The motor and hydraulic pump mounting connection structure according to any one of claims 5 to 7, characterized in that: The mounting seat also has two reinforcing plates, which are arranged in parallel on the left and right sides below the motor; the front end of the reinforcing plate is welded to the rear side of the rear mounting vertical plate, and the bottom edge is welded to the upper side of the seat plate.
10. An excavator, characterized in that: It has the motor and hydraulic pump installation and connection structure according to any one of claims 1 to 9.