Split electric cab for excavator

Abstract

The present invention discloses a split electric cab for an excavator, which is installed on the top of the excavator, and the cab comprises: a first cab, which is fixedly connected to the top of the excavator; a second cab, which is arranged on the top of the first cab, and the second cab and the first cab together form a complete cab; a connecting member, which is arranged between the first cab and the second cab, and the connecting member comprises: a first connecting part, which is fixedly connected to the first cab, and the first connecting part is supported and connected to the second cab on a side away from the first cab; a second connecting part, which is connected to the end of the first connecting part, and the second connecting part extends out of the top space of the first cab; wherein the second cab can be moved from the first connecting part to the second connecting part, so that the second cab is separated from the first cab, and after separation, the overall height of the excavator will be reduced so that it can pass through a construction cave that exceeds the height of the excavator body, and can be widely used in the field of engineering machinery cabs.

Description

Technical Field

[0001] The present invention relates to the field of engineering machinery cabs, and more specifically, to a split electric cab for an excavator. Background Art

[0002] At present, most of the engineering machinery cabs are made into an integral type, which has a simple structure and good sealing. For special working occasions, for example, the inner wall of the cement company cave needs to be cleaned after a long time of kiln burning, and the solidified cement stones on the inner wall need to be knocked down by an excavator. In this occasion, due to the design and planning requirements, the entrance of the cave door is smaller than the diameter of the cave. The cab must be removed before the excavator enters the cave, and then installed after entering the cave. This process requires several people to work together at the same time, which is inconvenient to disassemble and assemble, and is time-consuming and labor-intensive. At the same time, it is not safe to install in the cave. In order to enable engineering machinery such as excavators to smoothly enter such working conditions with a small entrance and a slightly larger internal space, an effective solution is proposed to divide the overall cab of the excavator into an upper cab, a lower cab, a walking mechanism and a flipping mechanism. The driver can complete the separation and combination of the upper cab with the lower cab in the order of flipping, moving, etc. through electric operation, so that the excavator can smoothly pass through the occasion with limited entrance height. At the same time, this solution has a wide promotion effect on similar engineering fields. Summary of the invention

[0003] The purpose of the present invention is to provide a sharps box with automatic needle removal and protective function.

[0004] In order to achieve these purposes and other advantages according to the present invention, there is provided a split electric cab for an excavator, the cab being mounted on the top of the excavator, the cab comprising:

[0005] A first cockpit fixedly connected to the top of the excavator;

[0006] A second cockpit is arranged on the top of the first cockpit, and the second cockpit and the first cockpit together form a complete cockpit;

[0007] A connecting member, which is arranged between the first cockpit and the second cockpit, and the connecting member comprises:

[0008] A first connecting portion, which is fixedly connected to the first cockpit, and a side of the first connecting portion away from the first connecting portion is load-bearingly connected to the second cockpit;

[0009] a second connection portion connected to a distal end of the first connection portion, and the second connection portion extends out of a top space of the first cockpit;

[0010] The second cockpit can be moved from the first connection portion to the second connection portion so that the second cockpit is separated from the first cockpit.

[0011] Preferably, the cab further comprises: a bearing member, which is slidably disposed on the upper surface of the first connecting portion to the second connecting portion, and the bearing member carries the second cab; the bearing member comprises:

[0012] a carrier frame, the upper portion of which is used to carry the second cockpit;

[0013] A plurality of rollers are respectively arranged at intervals at the bottom of the support frame, and the plurality of rollers can roll relative to the support frame. The rollers at the bottom of the support frame are rollingly connected to the second connecting portion.

[0014] Preferably, the second connection portion and the first connection portion are connected at their junction by a hinged manner.

[0015] Preferably, the cab further comprises a telescopic device, and the telescopic device comprises:

[0016] A fixing portion, which is hingedly connected to the side wall of the first cockpit;

[0017] The telescopic part has one end away from the fixed part and is hingedly arranged on the second bottom part.

[0018] Preferably, the cab further comprises:

[0019] a first drive motor, wherein the first drive motor is disposed on the first connection portion, a driving end of the first drive motor is connected to the second cockpit, and the first drive motor drives the second cockpit to slide horizontally along the upper surface of the first connection member;

[0020] A second drive motor is provided on the second connecting portion, a driving end of the second drive motor is connected to the second cockpit, and the second drive motor drives the second cockpit to slide horizontally along the upper surface of the second connecting member.

[0021] Preferably, the cab further comprises a guide mechanism, and the guide mechanism comprises:

[0022] A chain mechanism, comprising a chain, wherein the chain is fixedly arranged at the bottom of the bearing member;

[0023] A first gear mechanism, comprising at least one first gear, the axis of which is connected to the driving shaft of the first driving motor, and the first gear is meshedly connected to the chain;

[0024] Wherein, when the first driving motor rotates, the first gear meshes with the chain to drive the bearing member to move in the rotation direction of the first gear;

[0025] A second gear mechanism, comprising at least one second gear, the axis of the second gear is connected to the driving shaft of the second driving motor, and the second gear is meshedly connected to the chain;

[0026] When the second driving motor rotates, the second gear meshes with the chain to drive the bearing member to move in the rotation direction of the second gear.

[0027] Preferably, the first gear mechanism and the second gear mechanism both include:

[0028] A chassis having a storage space therein;

[0029] A pinion gear is disposed in the accommodating space of the chassis, and the pinion gear is drivingly connected to the first drive motor or the second drive motor;

[0030] The large gear has one side of its periphery meshed with the small gear, and the side of the large gear away from the small gear meshes with the chain.

[0031] Preferably, the telescopic device is an electric telescopic device.

[0032] Preferably, the telescopic device is a hydraulic telescopic device.

[0033] Preferably, the cab further comprises:

[0034] A first displacement sensor is arranged at an end of the first connecting portion away from the second connecting portion

[0035] a second displacement sensor disposed at a position of the first connection portion away from a hinged connection between the first connection portion and the second connection portion;

[0036] a third displacement sensor, which is arranged at a position of the second displacement sensor away from the second displacement sensor;

[0037] The first displacement sensor, the second displacement sensor and the third displacement sensor are used to monitor the sliding position of the support frame from the first connection part to the second connection part.

[0038] The present invention has at least the following beneficial effects:

[0039] The beneficial effect of the present invention is that due to the overall cab height limitation, the excavator cannot smoothly pass through the working condition where the entrance is smaller than the internal space. Through the split electric cab scheme of the excavator described in the present invention: in the initial stage, the second cab located on the top of the excavator is separated from the first cab by moving the connecting member, so that the position of the second cab is lower than the normal construction height of the excavator, and the total height of the excavator is lower than the entrance height of the cave; the principle is that the second cab can slide along the first connecting part to the second connecting part, and then shrink by the telescopic device, so that the second cab is rotated and lowered toward the side wall height of the first cab. After the excavator enters the cave, the telescopic device is used to push the second cab around the connection position of the first connecting part and the second connecting part as the rotation point, and rotate in the opposite direction of the lowered position of the second cab, so that the second connecting part is level with the first connecting part, and then the extension of the telescopic device is stopped, and the second cab is pushed to slide toward the first connecting part until the second cab and the first cab match to form the cab.

[0040] The above technical solution effectively solves the problem that the cab cannot pass through the entrance normally. Similarly, the first cab, the connecting member, and the second cab can be separated by reversing the above steps. When the operation is completed, the excavator can smoothly drive out of the cave. For the split electric cab, the solution has a wide range of reference, expansion and promotion in similar engineering fields, and has a high engineering value.

[0041] Other advantages, objectives and features of the present invention will be embodied in part through the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a structural schematic diagram of the cab of the present invention;

[0043] Figure 2 This is a schematic diagram of the structure in which the second cockpit of the present invention is located at the second connecting part;

[0044] Figure 3 The present invention is a schematic diagram of the structure after the first cockpit is separated from the cab;

[0045] Figure 4 It is a structural diagram of the second connecting part and the first connecting part of the present invention in a state of hinged rotation;

[0046] Figure 5 is a side view of the cab of the present invention;

[0047] Figure 6 This is a structural diagram of the cab of the present invention being located on an excavator and exceeding the height of a cave;

[0048] Figure 7It is a structural schematic diagram of a state in which a second cab of an upper cab of an excavator according to the present invention is displaced onto a second connecting member and the second connecting member is hingedly rotated;

[0049] Explanation of the reference numerals in the specification: 1. second cockpit, 2. first cockpit, 3. load-bearing member, 4. first connecting portion, 5. second connecting portion, 6. first gear mechanism, 7. telescopic device, 8. cave dwelling, 9. excavator, 10. cab, 11. first gear mechanism, 301. load-bearing frame, 302. roller. DETAILED DESCRIPTION

[0050] The present invention is further described in detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0051] In the description of the present invention, the terms "lateral", "longitudinal", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc. to indicate directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0052] like Figure 1-7 As shown, a split electric cab for an excavator, a cab 10 is installed on the top of the excavator 9, and the cab 10 includes: a first cab 2 and a second cab 2, the first cab 2 is fixedly connected to the top of the excavator 9; the second cab 2 is arranged on the top of the first cab 2, and the second cab 2 and the first cab 2 together form a complete cab 10;

[0053] It also includes a connecting member arranged between the first cockpit 2 and the second cockpit 2, which is used to form a connecting body for the second cockpit 2 to move its position; the connecting member includes: a first connecting part 4 and a second connecting part 5, one side of the first connecting part 4 is fixedly connected to the first cockpit 2, and the side of the first connecting part 4 away from the first cockpit 2 is load-bearingly connected to the bottom of the second cockpit 2; the first connecting part 4 is connected to the end of the second connecting part 5, and the second connecting part 5 extends out of the top space of the first cockpit 2. When the excavator 9 enters the cave 8 whose height is lower than the height of the excavator 9 body, the second cockpit 2 is moved from the first connecting part 4 to the second connecting part 5, so that the second cockpit 2 is separated from the first cockpit 2, and then the telescopic device 7 is used to shrink the second connecting part 5 and the end of the first connecting part 4 to be hinged and rotated, so that the second connecting part 5 is rotated to the side of the first cockpit 2, and then the second cockpit 2 located on the second connecting part 5 is also rotated and moved to the side of the first cockpit 2, and then the height of the excavator 9 body is lowered to pass through the cave 8 whose height is lower than the height of the excavator 9 body.

[0054] In another technical solution, the cab 10 also includes: a load-bearing member 3, which can be slidably arranged on the upper surface of the first connecting part 4 to the second connecting part 5, and the load-bearing member 3 carries the second driving cabin 2; the load-bearing member 3 includes a load-bearing frame 301 and a plurality of movable rollers 302 arranged at the bottom of the load-bearing frame 301, and the load-bearing frame 301 is used to carry the second driving cabin 2; the second driving cabin 2 is slidably arranged above the first driving cabin 2 through the load-bearing frame 301, and the frame setting of the load-bearing frame 301 is adapted to the outer edge of the first driving cabin 2 to prevent the generation of a blocking member in the closed space after the first driving cabin 2 and the second driving cabin 2 are closed, thereby affecting the driver's driving of the excavator 9.

[0055] In another technical solution, the junction between the second connecting part 5 and the first connecting part 4 is hinged to facilitate the rotation of the second connecting part 5 around the connection position with the first connecting part 4, thereby causing the carrier 301 supporting the second cockpit 2 to move toward a position close to the side wall of the first cockpit 2.

[0056] In another technical solution, the cab 10 further includes a telescopic device 7, which includes: a fixed portion and a telescopic portion, the fixed portion is a conventional cylindrical portion with a storage space, the contraction portion is a telescopic rod, and the telescopic rod is telescopically arranged in the cylindrical fixed portion; the fixed portion is hingedly connected to the side wall of the first cab 2; and one end of the telescopic portion away from the fixed portion is hingedly arranged at the bottom of the second. When it is necessary to separate the second cab 2 from the first cab 2 and thus lower the height of the cab 10, the second cab 2 is moved to the second connecting portion 5, so that the telescopic end of the telescopic device 7 is contracted, and then the second cab 2 is displaced in the direction of hinge rotation with the second connecting portion 5.

[0057] In another technical solution, the cab 10 also includes: a first drive motor and a second drive motor, the first drive motor is arranged on the first connecting part 4, the driving end of the first drive motor is connected to the second cockpit 2, and the first drive motor drives the second cockpit 2 to slide horizontally along the upper surface of the first connecting member; the second drive motor is arranged on the second connecting part 5, the driving end of the second drive motor is connected to the second cockpit 2, and the second drive motor drives the second cockpit 2 to slide horizontally along the upper surface of the second connecting member.

[0058] In another technical solution, the cab 10 further includes a guide mechanism, which includes: a chain mechanism, a first gear mechanism 6, and a second gear mechanism 11; the chain mechanism includes a chain, and the chain is fixedly arranged at the bottom of the bearing member 3; the first gear mechanism 6 includes at least one first gear, the axis of the first gear is connected to the driving shaft of the first driving motor, and the first gear is meshed with the chain; the second gear mechanism 11 includes at least one second gear, the axis of the second gear is connected to the driving shaft of the second driving motor, and the second gear is meshed with the chain;

[0059] When the first drive motor rotates, the first gear meshes with the chain to drive the bearing member 3 to move in the rotation direction of the first gear; when the second drive motor rotates, the second gear meshes with the chain to drive the bearing member 3 to move in the rotation direction of the second gear.

[0060] In another technical solution, the first gear mechanism 6 and the second gear mechanism 11 both include: a large gear and a small gear, and a case for accommodating the small gear; the case has an accommodating space; the small gear is placed in the accommodating space of the case, and the small gear is connected to the first drive motor or the second drive motor; one side of the large gear is meshed with the small gear, and the side of the large gear away from the small gear is meshed with the chain. The purpose of the overall large gear and small gear to form a reduction gear mechanism is to prevent the motor output speed from being too fast and causing the second cockpit 2 to deviate from the sliding track.

[0061] In another technical solution, the telescopic device 7 may be an electric telescopic device 7 or a hydraulic telescopic device 7 .

[0062] In another technical solution, the cab 10 further includes: a first displacement sensor, a second displacement sensor and a third displacement sensor; wherein the first displacement sensor is arranged at an end of the first connection part 4 away from the second connection part 5; the second displacement sensor is arranged at a position where the first connection part 4 is away from the hinge of the first connection part 4 and the second connection part 5; the third displacement sensor is arranged at a position where the second displacement sensor is away from the second displacement sensor;

[0063] The first displacement sensor, the second displacement sensor, and the third displacement sensor are used to monitor the sliding position of the support frame 301 from the first connecting portion 4 to the second connecting portion 5 .

[0064] Although the embodiments of the present invention have been disclosed as above, they are not limited to the applications listed in the specification and the implementation modes, and they can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A split electric cab for an excavator, wherein the cab is installed on the top of the excavator, characterized in that: The cab comprises: A first cockpit fixedly connected to the top of the excavator; A second cockpit is arranged on the top of the first cockpit, and the second cockpit and the first cockpit together form a complete cockpit; A connecting member, which is arranged between the first cockpit and the second cockpit, and the connecting member comprises: A first connecting portion, which is fixedly connected to the first cockpit, and a side of the first connecting portion away from the first cockpit is load-bearingly connected to the second cockpit; a second connection portion connected to a distal end of the first connection portion, and the second connection portion extends out of a top space of the first cockpit; The second cockpit can be moved from the first connection portion to the second connection portion, so that the second cockpit is separated from the first cockpit; The cab further includes: a bearing member, which is slidably disposed on the upper surface of the first connecting portion to the second connecting portion, and the bearing member bears the second cab; the bearing member includes: a carrier frame, the upper portion of which is used to carry the second cockpit; A plurality of rollers are disposed at intervals at the bottom of the carrier frame, the plurality of rollers can roll relative to the carrier frame, and the rollers at the bottom of the carrier frame are rollingly connected to the second connecting portion; The second connection portion is connected to the first connection portion at a junction thereof by a hinged manner; The cab also includes a telescopic device, which includes: a fixing portion, which is hingedly connected to a side wall of the first cockpit; A telescopic portion, one end of which is away from the fixed portion and is hingedly arranged at the bottom of the second connecting portion; The telescopic device is an electric telescopic device.

2. The split electric cab for excavators according to claim 1, characterized in that: The cab also includes: a first drive motor, wherein the first drive motor is disposed on the first connection portion, a drive end of the first drive motor is connected to the second cockpit, and the first drive motor drives the second cockpit to slide horizontally along an upper surface of the first connection portion; A second drive motor is provided on the second connecting portion, a driving end of the second drive motor is connected to the second cockpit, and the second drive motor drives the second cockpit to slide horizontally along the upper surface of the second connecting member.

3. The split electric cab for excavators according to claim 2, characterized in that: The cab also includes: A first displacement sensor is arranged at an end of the first connecting portion away from the second connecting portion a second displacement sensor disposed at a position of the first connection portion away from a hinged connection between the first connection portion and the second connection portion; a third displacement sensor, which is arranged at a position of the second displacement sensor away from the second displacement sensor; The first displacement sensor, the second displacement sensor and the third displacement sensor are used to monitor the sliding position of the support frame from the first connection part to the second connection part.

4. The split electric cab for excavators according to claim 3 is characterized in that: The cab also includes a guide mechanism, which includes: A chain mechanism, comprising a chain, wherein the chain is fixedly arranged at the bottom of the bearing member; A first gear mechanism, comprising at least one first gear, the axis of which is connected to the driving shaft of the first driving motor, and the first gear is meshedly connected to the chain; Wherein, when the first driving motor rotates, the first gear meshes with the chain to drive the bearing member to move in the rotation direction of the first gear; A second gear mechanism, comprising at least one second gear, the axis of the second gear is connected to the driving shaft of the second driving motor, and the second gear is meshedly connected to the chain; When the second driving motor rotates, the second gear meshes with the chain to drive the bearing member to move in the rotation direction of the second gear.

5. The split electric cab for excavators according to claim 4, characterized in that: The first gear mechanism and the second gear mechanism each include: A chassis having a storage space therein; A pinion gear is disposed in the accommodating space of the chassis, and the pinion gear is drivingly connected to the first drive motor or the second drive motor; The large gear has one side of its periphery meshed with the small gear, and the side of the large gear away from the small gear meshes with the chain.

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